Ruud H1P Standard Efficiency with Aluminum Coil Instruction Manual

Instruction Manual for Ruud models including: RH2TY2417STANNJ, - H1P, - H2T, - H1A, H1P Standard Efficiency with Aluminum Coil, H1P, Standard Efficiency with Aluminum Coil, Efficiency with Aluminum Coil, Aluminum Coil
Installation Instructions

Ruud RH2TY2417STANNJ Air Handler | United Supply Company
File Info : application/pdf, 84 Pages, 6.93MB
PalomaCoLtd-Ruud 00165 INST
INSTALLATION INSTRUCTIONS
AIR HANDLERS
FEATURING INDUSTRY STANDARD R-454B REFRIGERANT:
(-)H1P Standard Efficiency with Aluminum Coil (-)H2T High Efficiency with Aluminum Coil (2-Stage Non-Communicating) (-)H1A Standard Efficiency with Aluminum Coil (Straight Cool Only)

! WARNING
These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.

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TABLE OF CONTENTS
1.0 SAFETY INFORMATION .............................................................................................................................................................................................................4 2.0 GENERAL INFORMATION ..........................................................................................................................................................................................................7
2.1 IMPORTANT INFORMATION ABOUT EFFICIENCY & INDOOR AIR QUALITY............................................................................................................................7 2.2 CHECKING PRODUCT RECEIVED.........................................................................................................................................................................................7 2.3 MODEL NUMBER NOMENCLATURE....................................................................................................................................................................................8 2.4 AVAILABLE MODELS...........................................................................................................................................................................................................9 2.5 Dimensions & Weight.......................................................................................................................................................................................................10
2.5.1 DIMENSIONS & WEIGHTS: (-)H1P MODELS ..........................................................................................................................................................10 2.5.2 DIMENSIONS & WEIGHTS: (-)H2T MODELS ..........................................................................................................................................................11 2.5.3 DIMENSIONS & WEIGHTS: (-)H1A MODELS ..........................................................................................................................................................12 2.6 IMPORTANCE OF PROPER INDOOR/OUTDOOR MATCH-UPS .............................................................................................................................................13 2.7 IMPORTANCE OF QUALITY INSTALLATION ........................................................................................................................................................................13 3.0 INSTALLATION........................................................................................................................................................................................................................13 3.1 TOOLS & REFRIGERANT...................................................................................................................................................................................................13 3.1.1 TOOLS REQUIRED FOR INSTALLING AND SERVICING R-454B MODELS................................................................................................................13 3.1.2 SPECIFICATIONS OF R-454B................................................................................................................................................................................14 3.1.3 QUICK-REFERENCE GUIDE FOR R-454B...............................................................................................................................................................14 3.2 APPLICATIONS AND ORIENTATION....................................................................................................................................................................................14 3.2.1 VERTICAL UPFLOW & HORIZONTAL LEFT DISCHARGE..........................................................................................................................................14 3.2.2 VERTICAL DOWNFLOW & HORIZONTAL RIGHT DISCHARGE..................................................................................................................................15 3.2.3 INSTALLATION IN AN UNCONDITIONED SPACE.....................................................................................................................................................17 3.2.4 INSTALLATION IN AN UNVENTILATED AREAS........................................................................................................................................................18 3.2.5 INSTALLATION IN MOBILE/MANUFACTURED HOMES............................................................................................................................................18 3.2.6 INSTALLATION IN CORROSIVE ENVIRONMENTS....................................................................................................................................................19 3.2.7 SUPPORTING AIR-HANDLER IN HORIZONTAL APPLICATIONS................................................................................................................................19 3.3 AUXILIARY OVERFLOW PAN..............................................................................................................................................................................................19 3.4 CLEARANCES...................................................................................................................................................................................................................20 3.5 DUCT FLANGES................................................................................................................................................................................................................20 3.6 DUCTWORK......................................................................................................................................................................................................................21 3.7 RETURN AIR FILTER..........................................................................................................................................................................................................21 3.8 REFRIGERANT LINE CONNECTIONS & CHARGING.............................................................................................................................................................22 3.8.1 PREPARATION......................................................................................................................................................................................................22 3.8.2 LIQUID LINE FILTER DRIER ...................................................................................................................................................................................22 3.8.3 BRAZING..............................................................................................................................................................................................................22 3.8.4 LEAK TESTING......................................................................................................................................................................................................23 3.8.5 EVACUATION ........................................................................................................................................................................................................23 3.8.6 REFRIGERANT CHARGING ....................................................................................................................................................................................23 3.8.7 REFRIGERANT DETECTION SYSTEM (RDS)...........................................................................................................................................................23 3.8.8 REFRIGERANT DETECTION SYSTEM (RDS) INSTALLATION INSTRUCTIONS...........................................................................................................23 3.9 TXV SENSING BULB ATTACHMENT ...................................................................................................................................................................................27 3.10 CONDENSATE DRAIN .....................................................................................................................................................................................................27 3.11 THERMOSTAT.................................................................................................................................................................................................................28 3.12 ELECTRICAL WIRING ......................................................................................................................................................................................................28 3.12.1 CONFIGURING UNIT FOR 208 VOLT POWER........................................................................................................................................................28 3.12.2 GROUNDING.......................................................................................................................................................................................................29 3.12.3 POWER WIRING..................................................................................................................................................................................................29 3.12.4 COPPER WIRE SIZE - AWG. (3% VOLTAGE DROP)................................................................................................................................................29 3.12.5 ELECTRICAL DATA - BLOWER MOTOR ONLY ......................................................................................................................................................30
3.12.5.1 ELECTRICAL DATA  BLOWER MOTOR ONLY  WITHOUT ELECTRIC HEAT: (-)H1PY...............................................................................30 3.12.5.2 ELECTRICAL DATA  BLOWER MOTOR ONLY  WITHOUT ELECTRIC HEAT: (-)H2T.................................................................................30 3.12.5.3 ELECTRICAL DATA - BLOWER MOTOR ONLY - WITHOUT ELECTRIC HEAT: (-)H1A..................................................................................31 3.12.6 ELECTRICAL DATA  WITH ELECTRIC HEAT........................................................................................................................................................32 3.12.6.1 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H1PY .............................................................................................................................32 3.12.6.2 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H2T................................................................................................................................35 3.12.6.3 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1A................................................................................................................................39 3.12.7 ELECTRIC HEATER KIT SUPPLEMENTAL INFORMATION......................................................................................................................................41 3.12.8 CONTROL WIRING..............................................................................................................................................................................................42 3.12.9 THERMOSTAT & CONTROL WIRING CONNECTIONS............................................................................................................................................42 3.13 Air-flow..........................................................................................................................................................................................................................43 3.13.1 GENERAL AIR-FLOW OPERATING LIMITS............................................................................................................................................................43 3.13.2 SELECTING INDOOR BLOWER MOTOR SPEED....................................................................................................................................................44 3.13.2.1 (-)H1P/(-)H1AY4821ST MODELS (PSC MOTOR).....................................................................................................................................44 3.13.2.2 (-)H2T MODELS (CONSTANT TORQUE ECM MOTOR) - 2 STAGE AIR-FLOW ...........................................................................................44 3.13.2.3 (-)H2T/(-)H1A MODELS (CONSTANT TORQUE ECM MOTOR) - SINGLE STAGE AIR-FLOW......................................................................44 3.13.3 AIR-FLOW PERFORMANCE DATA........................................................................................................................................................................45 3.13.3.1 240V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR) ...............................................................................................................45 3.13.3.2 115/208/480V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR)................................................................................................47 3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR)...........................................................................49 3.13.3.4 115/208/240V AIR-FLOW PERFORMANCE DATA: (-)H1A (PSC MOTOR).................................................................................................54 3.13.3.5 115/208/240V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR)...................................................................................55 4.0 START-UP...............................................................................................................................................................................................................................58 4.1 PRE-START CHECKLIST....................................................................................................................................................................................................58 4.2 SYSTEM START-UP AND OPERATIONAL CHECK-OUT........................................................................................................................................................58 4.3 SEQUENCE OF OPERATION...............................................................................................................................................................................................58 4.3.1 COOLING MODE...................................................................................................................................................................................................58 4.3.2 ELECTRIC HEAT MODE.........................................................................................................................................................................................59
2

4.3.3 HEAT PUMP HEATING MODE ................................................................................................................................................................................59 4.3.4 SUPPLEMENTAL ELECTRIC HEAT DURING DEFROST............................................................................................................................................59 4.3.5 EMERGENCY HEAT (HEAT PUMP) .........................................................................................................................................................................59 4.3.6 THERMOSTAT FAN SETTING.................................................................................................................................................................................59 4.4 CORRECTING ELECTRIC HEAT kW FOR VOLTAGE..............................................................................................................................................................59 4.5 CALCULATING ELECTRIC HEAT CAPACITY IN BTUH...........................................................................................................................................................59 4.6 CHECKING INDOOR AIR-FLOW .........................................................................................................................................................................................60 4.6.1 ESTIMATING CFM USING EXTERNAL STATIC PRESSURE.......................................................................................................................................60 4.6.2 ESTIMATING CFM USING ELECTRIC HEAT TEMPERATURE RISE............................................................................................................................60 4.7 CHECKING REFRIGERANT CHARGE...................................................................................................................................................................................60 5.0 COMPONENTS & C0NTROLS..................................................................................................................................................................................................61 5.1 BLOWER MOTOR .............................................................................................................................................................................................................61 5.2 MOTOR RUN CAPACITOR .................................................................................................................................................................................................61 5.3 BLOWER CONTROL..........................................................................................................................................................................................................61 5.4 BLOWER ..........................................................................................................................................................................................................................62 5.5 TRANSFORMER................................................................................................................................................................................................................62 5.6 INDOOR COIL ASSEMBLY .................................................................................................................................................................................................62 6.0 ACCESSORIES & KITS.............................................................................................................................................................................................................63 6.1 ELECTRIC RESISTANCE HEATER KITS...............................................................................................................................................................................63 6.2 JUMPER BAR KITS ...........................................................................................................................................................................................................63 6.3 AUXILIARY HORIZONTAL OVERFLOW PANS.......................................................................................................................................................................63 6.4 EXTERNAL FILTER BASES ................................................................................................................................................................................................63 6.5 COMBUSTIBLE FLOOR BASES..........................................................................................................................................................................................63 6.6 HORIZONTAL ADAPTER KITS ............................................................................................................................................................................................64 7.0 INDOOR SERVICE/MAINTENANCE...........................................................................................................................................................................................64 7.1 GENERAL GUIDELINES .....................................................................................................................................................................................................64 7.2 Checks to the Refrigerant Equipment...............................................................................................................................................................................64 7.3 Checks to Electrical Devices ............................................................................................................................................................................................65 7.4 Repairs to Sealed Components........................................................................................................................................................................................65 7.5 Repair to Intrinsically Safe Components...........................................................................................................................................................................65 7.6 Cabling ............................................................................................................................................................................................................................65 7.7 Detection of Flammable Refrigerants...............................................................................................................................................................................65 7.8 Removal and Evacuation..................................................................................................................................................................................................66 7.9 Charging Procedures .......................................................................................................................................................................................................66 7.10 Recovery........................................................................................................................................................................................................................66 7.11 Decommissioning and Labeling.....................................................................................................................................................................................66 7.12 AIR FILTER......................................................................................................................................................................................................................67 7.13 INDOOR COIL, DRAIN PAN, DRAIN LINE ..........................................................................................................................................................................67 7.14 BLOWER MOTOR AND WHEEL........................................................................................................................................................................................67 7.15 MOTOR LUBRICATION....................................................................................................................................................................................................67 7.16 BLOWER ASSEMBLY REMOVAL & REPLACEMENT..........................................................................................................................................................67 7.17 MOTOR REPLACEMENT .................................................................................................................................................................................................68 7.18 BLOWER WHEEL REPLACEMENT ..................................................................................................................................................................................68 7.19 REPLACEMENT PARTS ..................................................................................................................................................................................................68 8.0 DIAGNOSTICS.........................................................................................................................................................................................................................69 9.0 WIRING DIAGRAMS.................................................................................................................................................................................................................70 9.1 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 115V.............................................................................................................................................................70 9.2 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 208/240V.....................................................................................................................................................71 9.3 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 115V........................................................................................................................................72 9.4 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 230V........................................................................................................................................73 9.5 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 230V........................................................................................................................................74 9.6 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 115V........................................................................................................................................75 9.7 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 115V.............................................................................................................................................................76 9.8 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 208/240V.....................................................................................................................................................77 9.9 WIRING DIAGRAM (-)H1P - 480V......................................................................................................................................................................................78 9.10 WIRING DIAGRAM (-)H1P - 480V....................................................................................................................................................................................79 9.11 WIRING DIAGRAM (-)H2T - 480V ....................................................................................................................................................................................80 9.12 WIRING DIAGRAM (-)H2T - 480V ....................................................................................................................................................................................81
3

! WARNING (SEE SECTION 3.13: ELECTRICAL WIRING)
Disconnect all power to unit before installing or servicing. More than one disconnect switch may be required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death.

! WARNING

(SEE SECTION 7.5: BLOWER ASSEMBLY REMOVAL & REPLACEMENT)

If removal of the blower assembly is required, all disconnect switches supplying power to the equipment must be de-energized and locked (if not in sight of unit) so the field power wires can be safely removed from the blower assembly. Failure to do so can cause electrical shock resulting in personal injury or death.

! WARNING
Because of possible damage to equipment or personal injury, installation, service, and maintenance should be performed by a trained, qualified service personnel. Consumer service is recommended only for filter cleaning/replacement. Never operate the unit with the access panels removed.

! CAUTION
The fixed wiring insulation must be protected, for example, by insulating sleeving having an appropriate temperature rating. Any means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

! CAUTION
Single-pole contactors are used on all standard single-phase units through 5 tons. Caution must be exercised when servicing as only one leg of the power supply is broken by the contactor.
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.

4

1.0 SAFETY INFORMATION
! WARNING
Duct leaks can create an unbalanced system and draw pollutants such as dirt, dust, fumes and odors into the home causing property damage. Fumes and odors from toxic, volatile or flammable chemicals, as well as automobile exhaust and carbon monoxide (CO), can be drawn into the living space through leaking ducts and unbalanced duct systems causing personal injury or death (see Figure 1). · If air-moving equipment or ductwork is located in garages or off-garage stor-
age areas - all joints, seams, and openings in the equipment and duct must be sealed to limit the migration of toxic fumes and odors including carbon monoxide from migrating into the living space. · If air-moving equipment or ductwork is located in spaces containing fuel burning appliances such as water heaters or boilers - all joints, seams, and openings in the equipment and duct must also be sealed to prevent depressurization of the space and possible migration of combustion byproducts including carbon monoxide into the living space.
! WARNING
These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.
! WARNING (SEE SECTION 3.2.2: VERTICAL DOWNFLOW)
The RXHB-17, RXHB-21 or RXHB-24 combustible floor base is required when some units with electric heat are applied downflow on combustible flooring. Failure to use the base can cause a fire resulting in property damage, personal injury or death. See CLEARANCES for units requiring a combustible floor base. See the accessory section in this manual for combustible floor base RXHB.
! WARNING (SEE SECTION 3.13.2: GROUNDING)
The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death.
! WARNING (SEE SECTION 7.0: MAINTENANCE)
Units with circuit breaker(s) meet requirements as a service disconnect switch, however, if access is required to the line side (covered) of the circuit breaker, this side of the breaker(s) will be energized with the breaker(s) de-energized. Contact with the line side can cause electrical shock resulting in personal injury or death.
! WARNING (SEE SECTION 3.6: DUCTWORK)
Do not, under any circumstances, connect return ductwork to any other heat producing device such as fireplace insert, stove, etc. Unauthorized use of such devices may result in fire, carbon monoxide poisoning, explosion, personal injury or property damage.
! CAUTION
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. The fixed wiring insulation must be protected, for example, by insulating sleeving having an appropriate temperature rating. Any means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
Continued on next page 

! WARNING
PROPOSITION 65: This appliance contains fiberglass insulation. Respirable particles of fiberglass are known to the State of California to cause cancer. All manufacturer products meet current Federal OSHA Guidelines for safety. California Proposition 65 warnings are required for certain products, which are not covered by the OSHA standards.
California's Proposition 65 requires warnings for products sold in California that contain or produce any of over 600 listed chemicals known to the State of California to cause cancer or birth defects such as fiberglass insulation, lead in brass, and combustion products from natural gas.
All new equipment shipped for sale in California will have labels stating that the product contains and/or produces Proposition 65 chemicals. Although we have not changed our processes, having the same label on all our products facilitates manufacturing and shipping. We cannot always know when, or if products will be sold in the California market.
You may receive inquiries from customers about chemicals found in, or produced by, some of our heating and air-conditioning equipment, or found in natural gas used with some of our products. Listed below are those chemicals and substances commonly associated with similar equipment in our industry and other manufacturers.
· Glass Wool (Fiberglass) Insulation · Carbon Monoxide (CO). · Formaldehyde · Benzene
More details are available at the websites for OSHA (Occupational Safety and Health Administration), at www.osha.gov and the State of California's OEHHA (Office of Environmental Health Hazard Assessment), at www.oehha. org. Consumer education is important since the chemicals and substances on the list are found in our daily lives. Most consumers are aware that products present safety and health risks, when improperly used, handled and maintained.

! CAUTION
The indoor coil must be equipped with an electronically powered leak detection system. To be effective, the unit must be electrically powered at all times after installation, other than when servicing.
! WARNING (SEE SECTION 3.7: AIR FILTER)
Do not operate the system without filters. A portion of the dust entrained in the air may temporarily lodge in the duct runs and at the supply registers. Any circulated dust particles could be heated and charred by contact with the heating elements. This residue could soil ceilings, walls, drapes, carpets and other articles in the house. Soot damage may occur even with filters in place when certain types of candles, oil lamps or standing pilots are burned.
! WARNING
The first 36 inches of supply air plenum and ductwork must be constructed of sheet metal as required by NFPA 90B. The supply air plenum or duct must have a solid sheet metal bottom directly under the unit with no openings, registers or flexible air ducts located in it. If flexible supply air ducts are used they may be located only in the vertical walls of a rectangular plenum, a minimum of 6 inches from the solid bottom. Metal plenum or duct may be connected to the combustible floor base, if not, it must be connected to the unit supply duct flanges such that combustible floor or other combustible material is not exposed to the supply air opening from the downflow unit. Exposing combustible (non-metal) material to the supply opening of a downflow unit can cause a fire resulting in property damage, personal injury or death. Exceptions to downflow warnings: · Installations on concrete floor slab with supply air plenum and ductwork completely encased in not less than 2 inches of concrete (See NFPA 90B).
! CAUTION (SEE SECTION 3.2.2: VERTICAL DOWNFLOW & HORIZONTAL RIGHT DISCHARGE)
Unit must be reconfigured for vertical down or horizontal right supply air discharge applications. The coil must be repositioned so the vertical drainpan is on the bottom for vertical down discharge applications or the horizontal drip pan is below coil for horizontal right discharge applications. Failure to reconfigure the unit for these applications can result in property damage and poor system performance.
! CAUTION (SEE SECTION 3.3: AUXILIARY OVERFLOW PAN)
In compliance with recognized codes, an auxiliary drain pan must be installed under all equipment containing evaporator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. See Section 6.3 of this manual for auxiliary horizontal overflow pan accessory information (model RXBM).
! NOTICE
When used in cooling applications, excessive sweating may occur when unit is installed in an unconditioned space. This can result in property damage.
! NOTICE
Improper installation, or installation not made in accordance with the Underwriters Laboratory (UL) certification or these instructions, can result in unsatisfactory operation and/or dangerous conditions and are not covered by the unit warranty.
! CAUTION
This unit is a PARTIAL UNIT AIR CONDITIONER, complying with PARTIAL UNIT requirements of this Standard, and must only be connected to other units that have been confirmed as complying to corresponding PARTIAL UNIT requirements of this Standard, UL 60335-2-40/CSA C22.2 No. 60335-2-40, or UL 1995/CSA C22.2 No 236.

5

! NOTICE
Use of this air-handler during construction is not recommended. If operation during construction is absolutely required, the following temporary installation requirements must be followed: Installation must comply with all Installation Instructions in this manual including the following items: · Properly sized power supply and circuit breaker/fuse · Air-handler operating under thermostatic control; · Return air duct sealed to the air-handler; · Air filters must be in place; · Correct air-flow setting for application · Removing the coil and storing it in a clean safe place is highly recommend-
ed until construction is completed and the outdoor unit is installed. · Clean air-handler, duct work, and components including coil upon com-
pletion of the construction process and verify proper air-handler operating conditions according as stated in this instruction manual. · NOTE: Electric strip heater elements tend to emit a burning odor for a few days if dust has accumulated during construction. Heater elements are easily damaged. Take great care when cleaning them. Low pressure compressed air is recommended for cleaning elements.
FIGURE 1
MIGRATION OF DANGEROUS SUBSTANCES, FUMES, AND ODORS INTO LIVING SPACES

WARNING
Carbon Monoxide (CO) Poisoning Can Cause Severe Injury or Death. Carbon Monoxide from the exhaust of motor vehicles and other fuel burning devices can be drawn into the living space by the operation of the central heating and air conditioning system. Exhaust from motor vehicles, generators, garden tractors, mowers, portable heaters, charcoal and gas grills, gasoline powered tools, and outdoor camping equipment contains carbon monoxide, a poisonous gas that can kill you. You cannot see it, smell it, or taste it. · Do NOT operate an automobile or any engine in a garage for more than the few seconds it takes to enter or exit the garage. · Do NOT operate any fuel-burning device in an enclosed or partly enclosed space, or near building windows, doors or air intakes. The U.S. Consumer Product Safety Commission (CPSC) and Health Canada recommend the installation of UL or CSA certified Carbon Monoxide Alarm(s) in every home.
6

! WARNING
Duct leaks can create an unbalanced system and draw pollutants such as dirt, dust, fumes and odors into the home causing property damage. Fumes and odors from toxic, volatile or flammable chemicals, as well as automobile exhaust and carbon monoxide (CO), can be drawn into the living space through leaking ducts and unbalanced duct systems causing personal injury or death (see Figure 1). · If air-moving equipment or ductwork is located in garages or off-garage stor-
age areas - all joints, seams, and openings in the equipment and duct must be sealed to limit the migration of toxic fumes and odors including carbon monoxide from migrating into the living space. · If air-moving equipment or ductwork is located in spaces containing fuel burning appliances such as water heaters or boilers - all joints, seams, and openings in the equipment and duct must also be sealed to prevent depressurization of the space and possible migration of combustion byproducts including carbon monoxide into the living space.
! NOTICE
Improper installation, or installation not made in accordance with the Underwriters Laboratory (UL) certification or these instructions, can result in unsatisfactory operation and/or dangerous conditions and are not covered by the unit warranty.
! NOTICE
Intended for indoor use only (excluding laundry rooms).

MARKINGS REFERENCE
2.0 GENERAL INFORMATION
2.1 IMPORTANT INFORMATION ABOUT EFFICIENCY & INDOOR AIR QUALITY
Central cooling and heating equipment is only as efficient as the duct system that car-ries the cooled or heated air. To maintain efficiency, comfort and good indoor air quality, it is important to have the proper balance between the air being supplied to each room and the air returning to the cooling and heating equipment. Proper balance and sealing of the duct system improves the efficiency of the heating and air conditioning system and improves the indoor air quality of the home by reducing the amount of airborne pollutants that enter homes from spaces where the ductwork and/or equipment is located. The manufacturer and the U.S. Environmental Protection Agency's Energy Star Program recommend that central duct systems be checked by a qualified contractor for proper balance and sealing.
2.2 CHECKING PRODUCT RECEIVED
Immediately upon receipt, all cartons and contents should be inspected for transit damage. Units with damaged cartons should be opened immediately. If damage is found, it should be noted on the delivery documents and a damage claim filed with the delivering carrier. After unit has been delivered to the job site, remove the unit from the carton taking care not to damage the unit. Check the unit rating plate for unit model number, unit size, coil model, voltage, phase, etc. to assure the unit matches the job specifications.
7

2.3 MODEL NUMBER NOMENCLATURE

FIGURE 2
MODEL NUMBER NOMENCLATURE

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8

2.4 AVAILABLE MODELS

AVAILABLE 115V MODELS

(-)H1PY1817STANNA (-)H1PY2417STANNA (-)H1PY3017STANNA (-)H1PY3617STANNA (-)H1PY3621STANNA (-)H1PY4221STANNA (-)H1PY4821STANNA

(-)H2TY2417STANNA (-)H2TY3617STANNA (-)H2TY3621STANNA (-)H2TY3621MTANAA (-)H2TY3621MTANNA (-)H2TY4821STANAA (-)H2TY4821STANNA (-)H2TY4824STANNA (-)H2TY4824MTANNA (-)H2TY6021STANAA (-)H2TY6024STANNA

(-)H1AY2417STANNA (-)H1AY3617STANNA (-)H1AY3621STANNA (-)H1AY4821STANNA (-)H1AY6021STANAA (-)H1AY6024STANNA

AVAILABLE 480V MODELS

(-)H1PY3617STANND (-)H1PY3621STANND (-)H1PY4221STANND (-)H1PY4821STANND

(-)H2TY3617STANND (-)H2TY3621STANND (-)H2TY3621MTANAD (-)H2TY3621MTANND (-)H2TY4821STANAD (-)H2TY4821STANND (-)H2TY4824STANND (-)H2TY4824MTANND (-)H2TY6021STANAD (-)H2TY6024STANND

AVAILABLE 208/240V MODELS

(-)H1PY1817STANNJ (-)H1PY2417STANNJ (-)H1PY3017STANNJ (-)H1PY3617STANNJ (-)H1PY3621STANNJ (-)H1PY4221STANNJ (-)H1PY4821STANNJ (-)H1PY4824STANNJ (-)H1PY6024STANNJ

(-)H2TY2417STANNJ (-)H2TY3617STANNJ (-)H2TY3621STANNJ (-)H2TY3621MTANAJ (-)H2TY3621MTANNJ (-)H2TY4821STANAJ (-)H2TY4821STANNJ (-)H2TY4824STANNJ (-)H2TY4824MTANNJ (-)H2TY6021STANAJ (-)H2TY6024STANNJ

(-)H1AY2417STANNJ (-)H1AY3617STANNJ (-)H1AY3621STANNJ (-)H1AY4821STANNJ (-)H1AY6021STANAJ (-)H1AY6024STANNJ

Notes:
· J Voltage (208/240V) single phase air handler is designed to be used with single or three phase 208/240V power. When connecting 3-phase power to the air handler terminal block, bring only two leads to the terminal block. Cap, insulate and fully secure the third lead.
· The air handlers are shipped from the factory with the proper indoor coil installed, and cannot be ordered without a coil.
· These air handlers do not have an internal filter rack. An external filter rack or other means of filtration of return air is required.
· Electric resistance heaters are field installed items. (See Section 6.1)
· Suitable for use in Manufactured (Mobile) Homes.
· The (-)H1A air handler includes models with constant torque motors, except for (-)H1AY4821ST models, as they are equipped with a PSC motor.

9

2.5 Dimensions & Weight
2.5.1 DIMENSIONS & WEIGHTS: (-)H1P MODELS

FIGURE 3A
DIMENSIONS AND WEIGHTS
ELECTRICAL CONNECTIONS MAY EXIT TOP OR EITHER SIDE
HIGH VOLTAGE CONNECTION 7/8, 1 3/32, 1 31/32 DIA. KNOCK OUTS.

SUPPLY AIR 105/16

A
LOW VOLTAGE CONNECTION 5/8 AND 7/8 KNOCK OUT (OUTSIDE OF CABINET)

NOTE: 24 CLEARANCE REQUIRED IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE.

FLANGES ARE PROVIDED FOR

FIELD INSTALLATION

(SEE DUCT FLANGES,

W

SECTION 3.5, FOR

INSTRUCTIONS)

Return Air Opening Dimensions

Model Cabinet
Size

Return Air Return Air Opening

Opening Width Depth/Length

(Inches)

(Inches)

17

15

19¾

21

19

19¾

24

22

19¾

H

AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) HORIZONTAL APPLICATION ONLY

PRIMARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT)

AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) UPFLOW/DOWNFLOW APPLICATION ONLY

LIQUID LINE CONNECTION COPPER (SWEAT)
VAPOR LINE CONNECTION COPPER (SWEAT)

DIMENSIONAL DATA

MODEL SIZE
(-)H1PY
1817S/2417S 3017S/3617S
3621S 4221S/4821S
4824S

REFRIGERANT CONNECTIONS

SWEAT (IN.) [MM] ID

LIQUID VAPOR

3/8" [9.53]

3/4" [19.05]

3/8" [9.53]

3/4" [19.05]

3/8" [9.53]

7/8" [22.23]

3/8" [9.53]

7/8" [22.23]

3/8" [9.53]

7/8" [22.23]

6024S

3/8" [9.53]

7/8" [22.23]

UNIT HEIGHT IN. [mm]
421/2" [1080]
421/2" [1080]
421/2" [1080]
501/2" [1283]
501/2" [1283]
551/2" [1410]

191/2
RETURN AIR OPENING
2111/16

UPFLOW UNIT SHOWN; UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW. HORIZONTAL RIGHT, OR LEFT AIR SUPPLY.

UNIT WIDTH W IN. [mm]
171/2" [444.5]
171/2" [444.5]
21" [533.4]
21" [533.4]
241/2" [622.3]
241/2" [622.3]

SUPPLY DUCT A IN. [mm]
16" [406.4]
16" [406.4]
191/2" [495.3]
191/2" [495.3]
23" [584.2]
23" [584.2]

UNIT WEIGHT / SHIPPING WEIGHT (LBS.) [kg]
UNIT WITH COIL (MAX. kW.)
81/95 [37/43]
90/104 [41/47]
109/124 [49/56]
130/146 [59/66]
143/161 [65/73]
164/181 [75/82]

10

2.5.2 DIMENSIONS & WEIGHTS: (-)H2T MODELS

FIGURE 3B
DIMENSIONS AND WEIGHTS
HIGH VOLTAGE CONNECTION 7/8, 1 3/32, 1 31/32 DIA. KNOCK OUTS.
ELECTRICAL CONNECTIONS MAY EXIT TOP OR EITHER SIDE
LOW VOLTAGE CONNECTION 5/8 AND 7/8 KNOCK OUT (OUTSIDE OF CABINET)

SUPPLY AIR

105/16

W

A

Return Air Opening Dimensions

Model Cabinet Size
17 21 24

Return Air Opening Width
(Inches) 157/8 193/8 227/8

Return Air Opening Depth/Length (Inches) 193/4 193/4 193/4

NOTE: 24 CLEARANCE REQUIRED IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE. FLANGES ARE PROVIDED FOR FIELD INSTALLATION
(SEE DUCT FLANGES, SECTION 3.5, FOR INSTRUCTIONS)
H

AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) HORIZONTAL APPLICATION ONLY
PRIMARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT)
AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) UPFLOW/DOWNFLOW APPLICATION ONLY
LIQUID LINE CONNECTION COPPER (SWEAT)
VAPOR LINE CONNECTION COPPER (SWEAT)

191/2
RETURN AIR
OPENING 2111/16
UPFLOW UNIT SHOWN; UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW. HORIZONTAL RIGHT, OR LEFT AIR SUPPLY.

DIMENSIONAL DATA

MODEL SIZE
(-)H2TY

REFRIGERANT CONNECTIONS

SWEAT (IN.) [mm] ID

LIQUID

VAPOR

2417S

3/8" [9.53]

3/4" [19.05]

3617S

3/8" [9.53]

3/4" [19.05]

3621M

3/8" [9.53]

7/8" [22.23]

3621M*

3/8" [9.53]

7/8" [22.23]

4821S

3/8" [9.53]

7/8" [22.23]

4821S

3/8" [9.53]

7/8" [22.23]

4824S

3/8" [9.53]

7/8" [22.23]

4824M

3/8" [9.53]

7/8" [22.23]

6021S

3/8" [9.53]

7/8" [22.23]

6024S

3/8" [9.53]

7/8" [22.23]

* = UNITS WITH "A" COIL

UNIT HEIGHT
IN. [mm]
42 1/2" [1080] 42 1/2" [1080] 50 1/2" [1282]
57" [1448] 50 1/2" [1282]
57" [1448] 55 1/2"[1410] 55 1/2" [1410]
57" [1448] 55 1/2" [1410]

UNIT WIDTH "W" IN.
[mm]
17 1/2" [445] 17 1/2" [445]
21" [533] 21" [533] 21" [533] 21" [533] 24 1/2" [622] 24 1/2" [622] 21" [533] 24 1/2" [622]

SUPPLY DUCT "A" IN. [mm]
16" [409] 16" [409] 19 1/2" [495] 19 1/2" [495] 19 1/2" [495] 19 1/2" [495] 23" [585] 23" [585] 19 1/2" [495] 23" [585]

UNIT WEIGHT / SHIPPING WEIGHT (LBS.) [kg] UNIT WITH COIL (MAX. kW.) 92/106 [42/48] 96/110 [44/50] 126/142 [57/64] 137/149 [62/68] 128/144 [56/65] 139/151 [63/68] 128/146 [58/66] 159/176 [72/80] 139/151 [63/68] 159/176 [72/80]

11

2.5.3 DIMENSIONS & WEIGHTS: (-)H1A MODELS

FIGURE 3C
DIMENSIONS AND WEIGHTS
HIGH VOLTAGE CONNECTION 7/8, 1 3/32, 1 31/32 DIA. KNOCK OUTS.
ELECTRICAL CONNECTIONS MAY EXIT TOP OR EITHER SIDE
LOW VOLTAGE CONNECTION 5/8 AND 7/8 KNOCK OUT (OUTSIDE OF CABINET)

SUPPLY AIR

105/16

W

A

Return Air Opening Dimensions

Model Cabinet Size
17 21 24

Return Air Opening Width
(Inches) 157/8 193/8 227/8

Return Air Opening Depth/Length (Inches) 193/4 193/4 193/4

NOTE: 24 CLEARANCE REQUIRED IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE. FLANGES ARE PROVIDED FOR FIELD INSTALLATION
(SEE DUCT FLANGES, SECTION 3.5, FOR INSTRUCTIONS)
H

AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) HORIZONTAL APPLICATION ONLY
PRIMARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT)
AUXILIARY DRAIN CONNECTION 3/4 FEMALE PIPE THREAD (NPT) UPFLOW/DOWNFLOW APPLICATION ONLY
LIQUID LINE CONNECTION COPPER (SWEAT)
VAPOR LINE CONNECTION COPPER (SWEAT)

191/2
RETURN AIR
OPENING 2111/16
UPFLOW UNIT SHOWN; UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW. HORIZONTAL RIGHT, OR LEFT AIR SUPPLY.

DIMENSIONAL DATA

MODEL SIZE
(-)H1AY

REFRIGERANT CONNECTIONS

SWEAT (IN.) [mm] ID

LIQUID

VAPOR

2417S

3/8" [9.53]

3/4" [19.05]

3617S

3/8" [9.53]

3/4" [19.05]

3621S

3/8" [9.53]

7/8" [22.23]

4821S

3/8" [9.53]

7/8" [22.23]

6021S*

3/8" [9.53]

7/8" [22.23]

6024S

3/8" [9.53]

7/8" [22.23]

* = UNITS WITH "A" COIL

UNIT HEIGHT
IN. [mm]
42 1/2" [1080] 42 1/2" [1080] 42 1/2" [1080] 50 1/2" [1282]
57" [1448] 55 1/2" [1410]

UNIT WIDTH "W" IN.
[mm]
17 1/2" [445] 17 1/2" [445]
21" [533] 21" [533] 21" [533] 24 1/2" [622]

SUPPLY DUCT "A" IN. [mm]
16" [409] 16" [409] 19 1/2" [495] 19 1/2" [495] 19 1/2" [495] 23" [585]

UNIT WEIGHT / SHIPPING WEIGHT (LBS.) [kg] UNIT WITH COIL (MAX. kW.) 92/106 [42/48] 96/110 [44/50] 111/126 [50/57] 128/144 [56/65] 139/151 [63/68] 161/178 [73/81]

12

2.6 IMPORTANCE OF PROPER INDOOR/OUTDOOR MATCH-UPS
To assure many years of reliable operation and optimum customer comfort and to assure the outdoor unit warranty remains valid, an air-handler model should be selected that is properly matched to the outdoor unit. This is especially critical for heat pump systems to assure proper refrigerant charge balance between the cooling and heating modes. The recommended approach is to select an air-handler model that has an AHRI match with the outdoor unit. Refer to the AHRI directory at www.ahridirectory.org to confirm the air-handler and outdoor unit are a certified combination in the AHRI Directory.
2.7 IMPORTANCE OF QUALITY INSTALLATION
A quality installation is critical to assure safety, reliability, comfort, and customer satisfaction. Strict adherence to applicable codes, the information in this installation manual, the outdoor unit installation manual, and the thermostat installation manual are key to a quality installation. Read the entire instruction manuals before starting the installation.
IMPORTANT: This product has been designed and manufactured to meet certified AHRI capacity and efficiency ratings with the appropriate outdoor units. However, proper refrigerant charge, proper air-flow, and refrigerant line sizing are critical to achieve optimum capacity and efficiency and to assure reliable operation. Installation of this product should follow the manufacturer's refrigerant charging and air-flow instructions located in the outdoor unit installation instructions and the charging chart label affixed to the outdoor unit. Failure to confirm proper charge and air-flow may reduce energy efficiency and shorten equipment life.
The equipment has been evaluated in accordance with the Code of Federal Regulations, Title 24, Chapter XX, Part 3280.
Install the unit in accordance with applicable national, state, and local codes. Latest editions are available from: National Fire Protection Association, Inc., Batterymarch Park, Quincy, MA 02269. These publications are:
· ANSI/NFPA No. 70-(Latest Edition) National Electrical Code.
· NFPA 90A Installation of Air Conditioning and Ventilating Systems.
· NFPA 90B Installation of Warm Air Heating and Air-Conditioning Systems.
Install the unit in such a way as to allow necessary access to the coil/filter rack and blower/control compartment.
3.0 INSTALLATION
3.1 TOOLS & REFRIGERANT
3.1.1 TOOLS REQUIRED FOR INSTALLING AND SERVICING R-454B MODELS
Manifold Sets:
· Up to 800 PSIG High-Side
· Up to 250 PSIG Low-Side
· 550 PSIG Low-Side Retard
Manifold Hoses:
· Service Pressure Rating of 800 PSIG
Recovery Cylinders:
· 400 PSIG Pressure Rating
· Dept. of Transportation 4BA400 or 4BW400
! NOTICE
R454B is classified as safety group A2L per ASHRAE Standard 34. Verify that service equipment and instruments are certified for use with group A2L refrigerants, and in particular with R454B.

Ambient and Tube Thermometers

Crescent Wrench

Manifold Gauge
Set

Brazing Rods

Recovery Cylinders

Allen Wrench

Torch

Reclaimer

Nitrogen

13

3.1.2 SPECIFICATIONS OF R-454B
Application: R454B is not a drop-in replacement for R410A. Equipment design must accommodate the safety group A2L of R454B. It cannot be retrofitted into R410A systems. Physical Properties: R454B has an atmospheric bubble point of 59.6 °F [50.9 °C] and an atmospheric dew point of 58.0 °F [50.0 °C]. Its bubble point saturation pressure at 77 °F [25 °C] is 213 psig [1469 kPa] and dew point saturation pressure at 77 °F [25 °C] is 205 psig [1415 kPa]. Composition: R454B is classified as safety group A2L per ASHRAE Standard 34. Verify that service equipment and instruments are certified for use with group A2L refrigerants, and in particular with R454B is a non-azeotropic mixture of 68.9% by weight difluoromethane (HFC-32) and 31.1% by weight 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf). Pressure: The pressure of R454B is classified as safety group A2L per ASHRAE Standard 34. Verify that service equipment and instruments are certified for use with group A2L refrigerants, and in particular with R454B is similar to that of R-410A. Recovery and recycle equipment, pumps, hoses, and the like must have design pressure ratings appropriate for R-454B. Manifold sets need to range up to 800 psig high-side and 250 psig low-side with a 550 psig low-side retard. Hoses need to have a service pressure rating of 800 psig. Recovery cylinders need to have a 400 psig service pressure rating, DOT 4BA400 or DOT 4BW400. Flammability: R454B is classified as safety group A2L, where the 2L flammability class indicates lower flammability. R-454B and air should never be mixed in tanks or supply lines or be allowed to accumulate in storage tanks. Leak checking should never be done with a mixture of R-454B and air.
3.1.3 QUICK-REFERENCE GUIDE FOR R-454B · Refrigerant R454B operates at pressures similar to R410A. However, it is classified in safety group A2L. Ensure that
servicing equipment is compatible with R454B.
· Refrigerant cylinders are no longer color-coded. R454B cylinders are light green gray in color with a red band on the
shoulder or top of the cylinder to indicate flammability.
· R-454B is only compatible with POE oils. · Vacuum pumps will not remove moisture from POE oil used in R-454B systems. · R-454B systems should be charged with liquid refrigerantin liquid phase. R-454B cylinders should be inverted to en-
sure liquid charging of the equipment.
· Do not install a suction line filter drier in the liquid line. · A factory-approved outdoor liquid line filter drier is shipped with every unit and must be installed in the liquid line at
the time of installation. If only the air-handler is being replaced on an existing system, the existing filter drier must be replaced at the time of installation with a field supplied filter drier. IMPORTANT: A bi-flow filter drier must be used for heat pump applications. Filter driers must be rated for minimum working pressure of 600 psig. The filter drier will only have adequate moisture-holding capacity if the system is properly evacuated.
· Desiccant (drying agent) must be compatible for POE oils and R-454B refrigerant. · R-454B cylinders containing less than 50 lbs of refrigerant require a CGA 164 fitting. R-454B cylinders containing more
than 50 lbs of refrigerant require a CGA 670 fitting.
3.2 APPLICATIONS AND ORIENTATION
3.2.1 VERTICAL UPFLOW & HORIZONTAL LEFT DISCHARGE · Vertical Upflow & Horizontal Left Discharge is the factory configuration for all models (see Figure 4). · The return air plenum must be large enough to supply unit and strong enough to support unit weight. · If return air is to be ducted through the floor, install duct flush with floor. Use fireproof resilient gasket 1/8 to 1/4 in. thick
between duct, unit and floor. Set unit on floor over opening. IMPORTANT: Do not cut the side out of air-handler cabinet for a side return duct as this will result in the return air bypassing the coil. Instead, install air-handler on top of a field supplied sheet metal or wooden box and run the side return duct into the side of the box.
14

3.2.2 VERTICAL DOWNFLOW & HORIZONTAL RIGHT DISCHARGE
The unit as shipped from the factory is not configured for vertical down or horizontal right discharge applications and must be converted in the field to work in those applications. To make this conversion, remove the coil door and slide the indoor coil out of the cabinet.
When converting the air-handler for vertical down and horizontal right discharge applications, an additional set of 2 coil support rails must be installed before the coil can be reinstalled. These additional rails are supplied with the air-handler and are packaged with the duct flanges. Six screws are also provided for mounting the rails and can be found in the installation hardware bag. Clearance holes must be drilled in the sides of the cabinet for the mounting screws using the provided dimples as guides. Note that the shorter coil support rail with no notch must be mounted on the left-hand side to provide clearance for the drainpan condensate connection boss.
FIGURE 4
DIMENSIONS FOR REFRIGERANT-TUBING & DRAIN CONNECTIONS

VERTICAL AUXILIARY DRAIN CONNECTION
HORIZONTAL AUXILIARY DRAIN CONNECTION

515/16 41/8 31/16
17/8 11/8

11/16
MAIN DRAIN PIPE

13/8 213/16 51/4

GAS PIPE
LIQUID PIPE 53/8

The vertical down/horizontal right coil support rails were not installed at the factory so the insulation under them would not be compressed which could result in exterior cabinet sweating in humid environments due to that location being in the cold downstream side of the indoor coil in vertical up and horizontal left discharge applications. The coil support rails installed at the factory should be left in place to help retain the cabinet insulation. They will be located on the warmer return side of the air-handler for down and horizontal right discharge applications and will therefore not pose a risk for cabinet sweating.
Once the additional coils support rails are installed, slide the coil back into the cabinet 180º from its original position, ensuring the retaining channel is fully engaged with the coil rail. (See Figure 6, Detail A.) Leave the coil door off until after the refrigerant tubing is brazed to the refrigerant stubs to allow TXV to be wrapped with a wet rag or heat sink compound during the brazing process. If the air-handler is not already in position, it can now be positioned so the blower discharge is either down or to the right depending on the application.
DRIP LOOP NOTE: When installing the unit in down or horizontal right discharge applications, make sure the wires going to the blower motor form a proper drip loop to force any condensate that might form on the wires to drip off the lowest point of the wiring instead of entering the motor or motor control. This may require cutting the wire-tie and installing a new wire-tie to form a new drip loop.
IMPORTANT: To comply with certification agencies and the National Electric Code for down discharge applications, the circuit breaker(s) on field-installed electric heater kits must be re-installed per procedure below so that the breaker switch on position and marking is up and the off position and marking is down.

15

1. To turn breaker(s): Rotate one breaker pair (circuit) at a time starting with the one on the right. Loosen both lugs on the load side of the breaker. Wires are bundles with wire ties, one bundle going to the right lug and one bundle going to the left lug.
FIGURE 5
ROTATING CIRCUIT BREAKER

FIGURE 6
VERTICAL DOWNFLOW & HORIZONTAL RIGHT APPLICATIONS
ADDITIONAL COIL RAILS

FACTORY COIL RAIL LOCATION
ADDITIONAL COIL RAILS
DETAIL A ENSURE THE RETAINING
CHANNEL IS FULLY ENGAGED WITH THE
COIL RAIL.

FACTORY COIL RAIL LOCATION

ST-A1213-02-00

2. Using a screwdriver or pencil, lift white plastic tab with hole away from breaker until breaker releases from mounting opening (see Figure 5).
3. With breaker held in hand, rotate breaker so that on position is up and the off position is down with unit in the vertical mounting position. Insert right wire bundle into top right breaker lug, ensuring all strands of all wires are inserted fully into lug, and no wire insulation is caught in lug.
4. Tighten lug as tight as possible while holding circuit breaker. Check wires and make sure each wire is secure and none are loose. Repeat for left wire bundle in left top circuit breaker lug.
IMPORTANT: Failure to securely hold the breaker will result in the plastic mounting boss on the breaker to be broken off when the lug is tightened.
1. Replace breaker by inserting breaker mounting tab opposite white pull tab in opening, hook mounting tab over edge in opening.
2. With screwdriver or pencil, pull white tab with hole away from breaker while setting that side of breaker into opening. When breaker is in place, release tab, locking circuit breaker into location in opening.
3. Repeat above operation for remaining breaker(s) (if more than one is provided).

16

FIGURE 7
INDOOR COIL AND DRAIN PAN DETAILS
STRAPS
HORIZONTAL DRIP PAN KIT
VAPOR LINE CONNECTION
AUXILIARY HORIZONTAL
DRAIN CONNECTION

TOP AIR STOP

PRIMARY DRAIN
CONNECTION
AUXILIARY UPFLOW/DOWNFLOW DRAIN CONNECTION

LIQUID LINE CONNECTION

VERTICAL DRAIN PAN
ST-A1213-01-00

! CAUTION
Auxiliary horizontal overflow pan kits RXBM- (or equivalent) are required when the unit is configured for the horizontal position over a finished ceiling and/or living space. (See Sections 3.3 and 6.3.) Failure to install overflow plan can result in property damage.
4. If one is used, replace the single point wiring jumper bar on line side of breaker and tighten securely. 5. Double check wires and lugs to make sure all are secure and tight. Check to make sure unit wiring to circuit breaker
load lugs match that shown on the unit wiring diagram. IMPORTANT: Units cannot be installed horizontally laying on or suspended from the back of the unit.
! WARNING
The RXHB-17, RXHB-21 or RXHB-24 combustible floor base is required when some units with electric heat are applied downflow on combustible flooring. Failure to use the base can cause a fire resulting in property damage, personal injury or death. See CLEARANCES (Section 3.4) for units requiring a combustible floor base. See the accessory section in this manual for combustible floor base RXHB.
3.2.3 INSTALLATION IN AN UNCONDITIONED SPACE
The exterior cabinet of an air handler has a greater risk of sweating when installed in an unconditioned space than when it is installed in the conditioned space. This is primarily due to the temperature of the conditioned air moving through the air handler and the air circulating around the unit where it is installed. For this reason, the following is recommended for all air handler applications, but special attention should be paid to those installed in unconditioned spaces:
· Duct sizing and air-flow are critical and must be based on the equipment selected. · Supply and return duct attachment: If other than the factory flanges are used, the attachment of ducting must be insu-
lated and tight to prevent sweating.
· No perimeter supply flanges are provided. If a full perimeter supply duct is used, it is the responsibility of the installer
to provide duct flanges as needed, to secure and seal the supply duct to prevent air leakage and the sweating that will result.

17

· Apply caulking around all cabinet penetrations such as power wires, control wires, refrigerant tubing and condensate
line where they enter the cabinet. Seal the power wires on the inside where they exit conduit opening. Sealing is required to prevent air leakage into the unit which can result in condensate forming inside the unit, control box, and on electrical controls. Take care not to damage, remove or compress insulation when applying the caulk.
· In some cases, the entire air handler can be wrapped with insulation. This can be done as long as the unit is completely
enclosed in insulation, sealed and service access is provided to prevent accumulation of moisture inside the insulation wrap.
· An auxiliary overflow pan is recommended to protect the structure from excessive cabinet sweating or a restricted coil
drain line. (See Section 3.3)
· If an electric heater kit is installed, be sure the breaker or disconnect cover is sealed tightly to the door panel. 3.2.4 INSTALLATION IN AN UNVENTILATED AREAS
If the installation room areas are not compliant with the outdoor room area values. Appliance shall not be installed in an area where there are potential ignition sources or a continuous open flame unless there is a flame arrest installed on flame-producing appliance. Auxiliary devices which may be a potential ignition source shall not be installed in the duct work. Examples of such potential ignition sources are hot surfaces with a temperature exceeding 700°C (1292°F) and electric switching devices. Only auxiliary devices that are approved by the manufacturer or declared suitable with the refrigerant call be installed in the connecting ductwork. For appliances using A2L refrigerants, connected via an air duct system to one or more rooms, the supply and return air shall be directly ducted to the space. Open areas such as false ceilings shall not be used as a return air duct. Note: Unventilated is defined by applications without an air circulation fan, or applications that do not employ a refrigerant detection system (RDS). For ventilation and room area table refer to RDS determination table in section 3.8.8 Refrigeration Detection System (RDS) Installation Instructions.
3.2.5 INSTALLATION IN MOBILE/MANUFACTURED HOMES
1. Air handler must be secured to the structure using L brackets or pipe strap. 2. Allow a minimum of 24 inches (610 mm) front clearance required to access doors. 3. Recommended method for securing air handler:
A. If air handler is against the wall, secure top of air handler to wall stud using two 16ga thick angle brackets one on each side. Attach brackets with No. 10 self-tapping 1/2 long screws to air handler and use 5/16 lag screws 11/2 long to wall stud. Secure bottom of unit with two 16ga L brackets with No. 10 self-tapping 1/2 long screws to air handler and use 5/16 lag screws 11/2 long to floor.
B. If air handler is away from wall attach pipe strap to top of air handler using No. 10 1/2 long self-tapping screws on both sides. Angle strap down and away from back of air handler, remove all slack, and fasten to wall stud of structure using 5/16 lag screws 11/2 long. Secure bottom of unit with two 16ga L brackets with No. 10 self-tapping screws to air handler and use 5/16 lag screws 11/2 long to floor.
FIGURE 8
ST-A1193-01-00
18

3.2.6 INSTALLATION IN CORROSIVE ENVIRONMENTS
The metal parts of this unit may be subject to rust or deterioration if exposed to a corrosive environment which can shorten its life. In addition to exposure to the exterior of the cabinet, chemical contaminants inside the building that can be drawn into the unit from the return air grille and attack structural metal parts, electrical components and the indoor coil, causing premature failure of the unit. If the unit is to be installed in an area where contaminants are likely to be a problem, special attention should be given to isolate the unit and return grille from contaminants.
3.2.7 SUPPORTING AIR-HANDLER IN HORIZONTAL APPLICATIONS
The air-handler must be adequately supported underneath if it is installed in the horizontal position to prevent it from sagging in the middle which can cause issues removing and re-installing the access panels. Position the unit on adequate supports or on support angles or channels (See Figure 9) before connecting ductwork to the unit. If an auxiliary overflow pan is required (See Section 3.3), the overflow pan will need to be adequately supported with the air-handler being supported underneath within the auxiliary overflow pan by angles and/or channels.
3.3 AUXILIARY OVERFLOW PAN
In compliance with recognized codes, an auxiliary overflow pan must installed under all equipment containing evaporator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. See Section 6.3 of this manual for information regarding the recommended auxiliary horizontal overflow pan (model RXBM) for this air-handler.

FIGURE 9

SUSPENDED HORIZONTAL AIR-HANDLER.

NOTE:
HORIZONTAL LEFT ORIENTATION DEPICTED IN ILLUSTRATION. HORIZONTAL RIGHT ORIENTATION IS SIMILAR IN INSTALLATION.

NOTE:
DO NOT BLOCK AIR-HANDLER ACCESS WITH SUPPORT RODS, ALLOW SPACE FOR PROPER SERVICE MAINTENANCE OR REPLACEMENT OF THE COIL AND BLOWER ASSEMBLY.

AIR FLOW

SUPPORTING HORIZONTAL AIR-HANDLERS IN AUXILIARY OVERFLOW PANS OR AIR-HANDLERS THAT ARE NOT SUSPENDED.

ST-A1298-01-00

19

FIGURE 10
DUCT FLANGE INSTALLATION
+($7 %$55,(5

´&$%,1(7 &87 +(5( ´&$%,1(7 &87 +(5( '8&7 )/$1*( 5(48,5(' %(1'

3.4 CLEARANCES
· All units are designed for 0 inches clearance to combustible material on all cabinet surfaces except for downflow ap-
plication with higher kW electric heat as noted below.
· Some units require a combustible floor base depending on the heating kW if installed in the downflow configuration on
a combustible surface. The following table should be used to determine these requirements.

Model Cabinet Size

17

21

24

Maximum Model Designation kW

15

18

20

· Units with electric heating kW equal to or less than the values listed in the table do not require a combustible floor
base. See Section 6.5 for Combustible Floor Base RXHB-XX.
· Units with electric heat require a one inch clearance to combustible material for the first three feet of supply plenum
and ductwork.
· Vertical downflow applications require clearance on at least one side of the unit for electrical connections. Refrigerant
and condensate drain connections are made on the front of the unit.
· All units require 24 inches minimum access to the front of the unit for service. · These units may be installed in either ventilated or nonventilated spaces.
3.5 DUCT FLANGES
Duct flanges (4 pieces) are shipped with the unit and are to be field installed on the top of the air-handler using the following procedure and referring to Figure 10. 1. Loosen the screws attaching the heat barrier to the cabinet.
2. Form a 90° bend with the short leg length at approximately 9.9 from the end where the slot is cut in the flange to facilitate bending. The duct flanges are shipped sized for the 24.5 wide cabinet. For the 17.5 and 21 wide cabinets, cut the long leg as shown in Figure 10 to match the cabinet width.
3. Side the duct flanges onto the screws loosened in step one above. Tighten the screws to secure the flanges.

20

3.6 DUCTWORK
Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance.
! WARNING
Do not, under any circumstances, connect return ductwork to any other heat producing device such as fireplace insert, stove, etc. Unauthorized use of such devices may result in fire, carbon monoxide poisoning, explosion, personal injury or property damage.
Sheet metal ductwork run in unconditioned spaces must be insulated and covered with a vapor barrier. Fibrous ductwork may be used if constructed and installed in accordance with SMACNA Construction Standard on Fibrous Glass Ducts. Ductwork must comply with National Fire Protection Association as tested by U/L Standard 181 for Class I Air Ducts. Check local codes for requirements on ductwork and insulation.
· Duct system must be designed within the range of external static pressure the unit is designed to operate against. It is
important that the system air-flow be adequate. Make sure supply and return ductwork, grills, filters, accessories, etc. are accounted for in total resistance. Refer to the air-flow performance tables in this manual to determine the available external static pressure for the particular air-handler model being installed.
· Design the duct system in accordance with ACCA Manual D Design for Residential Winter and Summer Air Condi-
tioning and Equipment Selection. Latest editions are available from: ACCA Air Conditioning Contractors of America, 1513 16th Street, N.W., Washington, D.C. 20036. If duct system incorporates flexible air duct, be sure pressure drop information (straight length plus all turns) shown in ACCA Manual D is accounted for in system.
· Supply plenum is attached to the duct flanges supplied with the unit. See Section 3.5. · IMPORTANT: If an elbow is included in the plenum close to the unit, it must not be smaller than the dimensions of the
supply duct flange on the unit.
· IMPORTANT: The front flange on the return duct if connected to the blower casing must not be screwed into the area
where the power wiring is located. Drills or sharp screw points can damage insulation on wires located inside unit.
· Secure the supply and return ductwork to the unit flanges, using proper fasteners for the type of duct used and tape or
caulk the duct-to-unit joint as required to prevent air leaks.
3.7 RETURN AIR FILTER
An internal filter rack is not provided with this air-handler. Therefore, an external means of filtering the return air is required. External filters should be sized for a maximum of 300 feet/min air velocity or the maximum velocity recommended by the type of filter installed. One or more return air filter grilles, a filter rack attached to unit return air intake, or a filter rack installed between a sealed return air platform and the return duct are all acceptable means of filtration. All return ducts must be filtered, either at each return grille or at a common filter near the unit.
Important: Do not install a return air filter grille and a filter rack at the unit and do not install a filter in the supply duct system.
Filter type, sizing, and placement are critical to heating and cooling system performance. Reduced air-flow can shorten the life of system components such as the compressor, indoor coil, heater elements, over temperature limits, and relays. As filters near the end of their useful life, the pressure drop through them increases. Therefore, it is important to factor the end of life (dirty) pressure drop of filters into the external static pressure of the duct system when selecting blower speeds and designing ductwork to assure the system is operating at the design CFM and system reliability is not compromised. Always verify that the system's air-flow is within specifications by performing a temperature rise (heating mode) and/or temperature drop (cooling mode) with all filters in place.
Important: High efficiency pleated filters and electronic air cleaners typically have significantly higher pressure drop than standard efficiency fiberglass filters, especially when they get dirty. Do not use high efficiency filters or electronic air cleaners unless adequate filter area is provided to lower the filter pressure drop to an acceptable level.
! CAUTION
R454B is classified as safety group A2L per ASHRAE Standard 34. Verify that service equipment and instruments are approved for use with group A2L refrigerants, and in particular with R454B. Failure to exercise care may result in equipment damage or personal injury.
! WARNING
Do not operate the system without filters. A portion of the dust entrained in the air may temporarily lodge in the duct runs and at the supply registers. Any circulated dust particles could be heated and charred by contact with the heating elements. This residue could soil ceilings, walls, drapes, carpets and other articles in the house. Soot damage may occur even with filters in place when certain types of candles, oil lamps or standing pilots are burned.
21

3.8 REFRIGERANT LINE CONNECTIONS & CHARGING
Pipe-work including piping material, pipe routing, and installation shall include protection from physical damage in operation and service, and be in compliance with national and local codes and standards, such as ASHRAE 15, ASHRAE 15.2, IAPMO Uniform Mechanical Code, ICC International Mechanical Code, or CSA B52. All field joints shall be accessible for inspection prior to being covered or enclosed. After completion of field piping for split systems, the field pipework shall be pressure tested with an inert gas and then vacuum tested prior to refrigerant charging, according to the following requirements:
· The minimum test pressure for the low side of the system shall be the low side design pressure and the minimum test pressure for the high side of the system shall be the high side design pressure, unless the high side of the system, cannot be isolated from the low side of the system in which case the entire system shall be pressure tested to the low side design pressure.
· Field-made refrigerant joints indoors shall be tightness tested. The test method shall have a sensitivity of 5 grams per year of refrigerant or better under a pressure of at least 0,25 times the maximum allowable pressure.
· No leak shall be detected; where addition of charge is required to complete installation, refer to the Outdoor I&O System start-up and refrigerant charging details for instructions on how to determine the additional REFRIGERANT CHARGE and how to complete the REFRIGERANT CHARGE on the label provided by the manufacturer. Interconnecting refrigerant piping length and diameter shall be taken into consideration as listed in the Line Set Selection.
3.8.1 PREPARATION
The coil is shipped with a low pressure (5-10 psig) charge of dry nitrogen which will be released when the rubber plugs are removed. Leave the rubber plugs in the refrigerant connection stubs on the air-handler until the refrigerant lines are ready to be brazed to the refrigerant connection stubs to prevent contaminants from entering the coil. Clean the ends of the tubing and coil connection stubs (inside and outside) with an alcohol wipe before inserting the line set tubes into the coil connection stubs to assure a quality leak-free braze joint.
Refer to the outdoor unit installation instructions for details on refrigerant line sizing and installation. Be sure to follow long line length guidelines if they apply.
Route the refrigerant tubing in a manner than does not block service access to the front of the air-handler.
3.8.2 LIQUID LINE FILTER DRIER
A new liquid filter drier must be installed every time any part of the system has been open to the atmosphere, even if it's for a short period of time. The filter drier should be installed close to the air-handler for a system started up in the cooling mode and near the outdoor unit for a heat pump system started up in the heating mode. This allows the filter drier to catch any contaminants in the liquid line before they can enter the indoor or outdoor TXV inlet screen.
3.8.3 BRAZING
Air inside the tubing and coil should be displaced with dry nitrogen prior to the brazing process to prevent the formation of harmful copper oxide inside the tubing. It is very important not to pressurize the system with nitrogen while brazing or pinhole leaks will form in the braze joint. This is accomplished by removing the gauge port valve core on one of the outdoor unit service valves to allow the pressure to be relieved as the heated nitrogen expands. Fill the system with dry nitrogen through the other service valve gauge port and then turn the nitrogen flow off just before brazing is begun.
Protect the TXV, copper to aluminum suction header joint, and outdoor unit service valves from overheating using a wet rag or heat sink compound. Leave the wet rag or heat sink material in place until the joint and surrounding tubing cools down to a safe temperature. Double tip torches can help minimize brazing time and heat conduction to the heat sensitive components if the flame is turned down and held on the joint just long enough to make the braze joint. With both single and double tip torches, turning the flame up too much and keeping the flame on the joint too long will damage the heat sensitive components even when a wet rag or heat sink compound is used.
Use a sheet metal shield to protect the cabinet's paint from the torch flames during the brazing process. The vapor line insulation should be pushed back on the line about 12 inches from the joint and retained to prevent it from igniting or melting during the brazing process.
After the refrigerant brazed connections are made at the air-handler and the tubing has cooled down sufficiently, replace the coil section access panel if it has been removed and seal the air gap around the connection stubs with the foam rubber gasket included in the air-handler parts bag. Peel the self-adhesive backing off of the foam gasket and position it around the stubs with the adhesive side toward the cabinet, then press it firmly against the cabinet. The gasket is split to allow it to go over the stubs after the refrigerant tubes are brazed to the stubs. (See Figure 12 in Section 3.10)
After the foam gasket has been installed, the vapor line insulation should be pulled back in place so it contacts the air-handler cabinet to prevent condensate from forming on the cold tube and dripping off. A loosely fitting zip-tie placed around the insulation ½ from the end can be used to hold it in place so it doesn't move away from the cabinet. For air-handlers with TXV's, a section of the insulation will need to be cut out to make room for the externally mounted TXV bulb. (See Section 3.10) Once the bulb is mounted, insulate the bulb with the foam insulation included in the air-handler parts bag, making sure none of the vapor line is uninsulated.
22

3.8.4 LEAK TESTING
After all braze joints are completed, replace the valve core removed when purging with nitrogen and then leak test the system by pressurizing to 150 psig with dry nitrogen and allow the system to sit for 60 minutes (longer if possible) to assure the pressure does not drop.

3.8.5 EVACUATION
If no leaks are detected, evacuate the system down to 500 microns or below before charging the system or opening the service valves on the outdoor unit which will release the charge stored in the outdoor unit into the line set and air-handler coil. Failure to reach 500 microns of vacuum is a sign of a leak or excessive moisture inside the system.
3.8.6 REFRIGERANT CHARGING
Once the evacuation process is completed, break the vacuum with the refrigerant from a refrigerant cylinder or with refrigerant stored in the outdoor unit by opening the outdoor unit service valves. The charging process cannot be completed until the remaining steps in the installation process are completed and the indoor air-flow is adjusted to the proper level. See Section 4.7 for further details.
3.8.7 REFRIGERANT DETECTION SYSTEM (RDS)
The RDS is used to mitigate any leaked refrigerant that may occur in the indoor portion of the system. Tripped RDS Sequence of Operations:
Step 1: RDS detects a leak at or over the sensor setpoint. Step 2: Relay in RDS shuts ODU down and energizes the indoor blower. Step 3: Leaked refrigerant gets dispersed during the blower on cycle. Step 4: Once the concentration of the leaked refrigerant is below the RDS setpoint, the blower continues to run for 5 minutes. Step 5: If the concentration stays below the RDS setpoint for 5 minutes, the system returns to normal operation. Note: There is no lockout timer, and the system can continue to go through these steps. Life expectancy of the RDS is 15 years and should be replaced at the end of life. Contact Rheem Parts Department for RDS replacement.

3.8.8 REFRIGERANT DETECTION SYSTEM (RDS) INSTALLATION INSTRUCTIONS
Important Note: The installation process for the RDS varies depending on the flow configuration of the unit. It is crucial to adhere to the following instructions. The RDS is initially configured for upflow installation during manufacturing and can be adjusted for downflow, horizontal right flow, and horizontal left flow configurations.

The RDS must be installed at the location respective to the flow configuration that the unit is installed. Installation locations are defined for each flow configuration in the below illustration.

UpFlow

DownFlow

Horizontal Left

REFRIGERANT DETECTION SYSTEM (RDS)

Horizontal Right

PART LIST:

ST-A1360-07-00

Item Description
Primary Bracket
Flange Screw Cup Point Screw Standoff (14 and 17 upflow only)

Part Number
AE-109597-01
AE-109596-01 63-22153-05 63-24368-01 AE-110038-01

Quantity
1
2 5 3 1

See outdoor installation manual Section 5 for conditioned room area calculations and indoor airflow verifications for units without refrigerant leak detection sensors.
23

Step 1: Primary Bracket Removal Unscrew and remove the primary bracket from the flange. This screw (Part Number: 63-22153- 05) will be used in Step 3. Ensure the RDS wiring harness is not under tension throughout this process.
ST-A1360-02-00
Step 2: Flange Removal and Relocation A. Remove the two screws holding the flange in place to the cabinet.
ST-A1360-03-00
24

B. Position the flange according to the unit's flow configuration. Fasten the flange to the cabinet using the two screws removed in the previous step. Refer to the below illustrations for the correct hole placement. Note: An additional flange is installed in manufacturing for the horizontal left flow configuration.

FLANGE

MOUNT TO COIL JACKET

1

6

2

3
PRIMARY BRACKET MOUNTING SIDE.
4

5

ST-A1360-04-00

6

· For vertical flow configurations, secure the flange using holes 1 and 5 for all unit models. · For horizontal flow configurations, always use hole 1 and either hole 4 or 5, depending on the air-handler cabinet.

Step 3: RDS Orientation and Relocation
A. Horizontal Flow Configurations
i. Remove the RDS from the upflow or downflow mounting orientation on the primary bracket by removing the single
snub-nosed screw and sliding the RDS out of the slot.
ii. Secure the RDS to the primary bracket using the snub-nose screw provided in the parts bag and the screw re-
moved in the previous step, following the hole positions shown in the illustration.
iii. Fasten the primary bracket to the flange using the screw removed in Step 1, as shown in the below illustration.
Ensure the wiring harness has a drip loop toward the horizontal flow drain pan.

ST-A1360-05-00
25

B. Vertical Flow Configurations
i. Mount the RDS to the primary bracket with one tab fixed in the slot and the other at the hole as shown in the below
illustration. Use the provided snub-nose screw.

NOTE: Stating standoff is only used for 14 and 17 units in the upflow position.

ST-A1360-06-00

ii. Fasten the primary bracket to the flange as described in Step 3. A.III. Ensure the wiring harness has a drip loop
toward the vertical flow drain pan.

RDS DETERMINATION TABLE

Total System Charge (oz)
50 100 150 200 250 300 350 400 450 500 550 600

Minimum Indoor Airflow (CFM)
166 333 499 665 831 998 1164 1330 1497 1663 1829 1996

Without Refrigerant Leak Detection Sensor Area of Smallest Conditioned Room Or Space Where Indoor Unit is
Installed (sqft)

Distance From Floor to Bottom Edge of Lowest Inlet or Outlet Vent Opening or Bottom Edge of Indoor Unit

2 FT

6 FT

9 FT

338

113

75

781

225

150

1758

338

225

3126

451

301

4884

564

376

7032

781

451

9572

1064

526

12502

1389

617

15823

1758

781

19534

2170

965

not permitted - sensor required

With Refrigerant Leak Detection Sensor Minimum Required Total Conditioned
Room Area = Sum of all conditioned spaces/
rooms (sqft)
Any configuration 94 187 281 375 469 562 656 750 843 937 1031 1125

Note: If the total charge quantity falls between two rows, use the minimum room area and airflow in the row corresponding to the higher total system charge.

26

3.9 TXV SENSING BULB ATTACHMENT
IMPORTANT: DO NOT perform any brazing with the TXV bulb attached to the vapor line. After brazing operations have been completed and the tubing has cooled to the touch, clamp the TXV bulb securely on the vapor line at the 10 to 2 o'clock position (see Figures 11 and 12) with the strap provided in the parts bag. Insulate the TXV sensing bulb and suction line with the provided pressure sensitive insulation (size 4 × 7) and secure with provided wire ties.

FIGURE 11
BULB LOCATION

10 O'CLOCK

2 O'CLOCK

TXV BULB

TXV BULB

VAPOR LINE FIGURE 12
TXV BULB & FOAM GASKET LOCATION
)2$0*$6.(7

7;9%8/%
7KHVWUDSIRUWKH7;9EXOEKDV %8/%VWDPSHGRQRQHVLGHDQG 78%(VWDPSHGRQWKHRGHUVLGH 1RWHVRPHVWUDSVPD\QRWKDYH HLWKHURIWKHVLGHVVWDPSHG

%8/%

67$
IMPORTANT: TXV sensing bulb should be located on a horizontal section of suction line, just outside of coil box. The copper sensing bulb must never be placed on any aluminum tube as this will result in galvanic corrosion and eventual failure of the aluminum tube.
3.10 CONDENSATE DRAIN
Consult local codes or ordinances for specific requirements. IMPORTANT: When making drain fitting connections to the drain pan, use a thin layer of Teflon paste, silicone or Teflon tape and install hand tight. IMPORTANT: When making drain fitting connections to drain pan, do not overtighten. Overtightening fittings can split pipe connections on the drain pan.
· Install drain lines so they do not block service access to front of the unit. Minimum clearance of 24 inches is re-
quired for filter, coil or blower removal and service access.
27

FIGURE 13
CONDENSATE DRAIN TRAP
ST-A1244-01-00
· Although the condensate drain pan is designed is designed to be self draining, it is recommended that the air-han-
dler cabinet be pitched slightly downward toward the primary drain connection to assure the condensate drains completely from the drain pan. The downward pitch should be approximately 1/8 per foot and in both axes.
· Do not reduce drain line size less than connection size provided on condensate drain pan. · All drain lines must be pitched downward away from the unit a minimum of 1/8 per foot of line to ensure proper
drainage.
· Do not connect condensate drain line to a closed or open sewer pipe. Run condensate to an open drain or out-
doors.
· The drain line should be insulated where necessary to prevent sweating and damage due to condensate forming
on the outside surface of the line.
· Make provisions for disconnecting and cleaning of the primary drain line should it become necessary. Install a 3
in. trap in the primary drain line as close to the unit as possible. Make sure that the top of the trap is below connection to the drain pan to allow complete drainage of pan (See Figure 13).
· The auxiliary drain line should be run to a place where it will be noticeable if it becomes operational. The building
occupant should be warned that a problem exists if water should begin running from the auxiliary drain line. An auxiliary drain shut-off switch can be installed in lieu of an auxiliary drain line. The shut-off switch should be wired into the control circuit so the outdoor unit shuts down should the switch detect water.
· Plug the unused drain connection with the plugs provided in the parts bag, using a thin layer of teflon paste, sili-
cone or teflon tape to form a water tight seal.
· Test the condensate drain pan and drain line after installation is complete. Pour water into drain pan, enough to fill
drain trap and line. Check to make sure drain pan is draining completely, no leaks are found in drain line fittings, and water is draining from the open end of the primary drain line.
3.11 THERMOSTAT
See instructions for the condensing unit or heat pump for recommended room thermostats.
· On units with one electric heat sequencer (TD1) (see wiring diagram for electric heater), heat anticipator setting should
be .16.
· On units with two electric heat sequencers (TD1 & TD2) (see wiring diagram for electric heater), heat anticipator setting
should be .32 if both are connected to same stage on thermostat. Setting should be .16 if (TD1 & TD2) are connected to separate stages. NOTE: Some thermostats contain a fixed, non-adjustable heat anticipator. Adjustment is not permitted.
· The thermostat should be mounted 4 to 5 feet above the floor on an inside wall of the living room or a hallway that
has good air circulation from the other rooms being controlled by the thermostat. It is essential that there be free air circulation at the location of the same average temperature as other rooms being controlled. Movement of air should not be obstructed by furniture, doors, draperies, etc. The thermostat should not be mounted where it will be affected by drafts, hot or cold water pipes or air ducts in walls, radiant heat from fireplace, lamps, the sun, T.V. or an outside wall. See instruction sheet packaged with thermostat for mounting and installation instructions.
3.12 ELECTRICAL WIRING
Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local ordinance.
3.12.1 CONFIGURING UNIT FOR 208 VOLT POWER
The control transformer in 208/240V air-handlers must be configured in the field to operate on a 208 volt electrical supply to assure adequate control voltage (24+ volts) with the reduced supply voltage. The units are shipped from the factory for 220-240 volt applications. For 208 volt applications, disconnect electrical power to the unit and remove the blower access panel and then the control box cover located on the blower housing. Then remove the insulated cap from the 208 volt transformer terminal and move the BLACK wires that are connected to the 240 volt transformer terminal to the 208
28

volt transformer terminal. Plug the insulated cap onto the transformer 240V terminal. The indoor blower motor in 208/240V versions of the (-)H1P/(-)H1AY4821ST air-handlers must also be configured for 208 volt applications to assure full air-flow delivery at the reduced voltage. This step is not required on (-)H2T/(-)H1A (constant torque) air-handlers since they have constant torque ECM motors. To configure the PSC motor in (-)H1P/(-)H1AY4821ST air-handlers for 208 volt applications, unplug the PURPLE motor lead connected to the insulated terminal on the end of the ORANGE wire coming from the transformer. Pull the cap out of the insulated terminal on end of the YELLOW motor lead and plug the cap into the terminal on the end of the PURPLE motor lead to eliminate the possibility of an electrical short. Plug the YELLOW motor lead into the terminal on the end of the ORANGE wire from the transformer. Secure the indoor blower motor wiring with zip ties to assure they can't come in contact with the blower wheel. Replace the control box cover and blower access panel.
3.12.2 GROUNDING · This product must be sufficiently grounded in accordance with National Electrical Code (C.E.C. in Canada) and any applicable local
ordinance.
! WARNING

The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death.

· · ·

Grounding may be accomplished by grounding metal conduit when installed in accordance with electrical codes to the unit cabinet. Grounding may also be accomplished by attaching ground wire(s) to ground lug(s) provided in the unit wiring compartment. Ground lug(s) are located close to wire entrance on left side of unit (upflow). Lug(s) may be moved to marked locations near wire

·

entrance on right side of unit (upflow), if alternate location is more convenient. Use of multiple supply circuits require grounding of each circuit to lug(s) provided in unit.

3.12.3 POWER WIRING
It is important that proper electrical power is available for connection to the unit model being installed. See the unit nameplate, wiring diagram and electrical data in the installation instructions.

· If required, install a branch circuit disconnect of adequate size, located within sight of, and readily accessible to the
unit.

IMPORTANT: Units with electric heater kits installed may be equipped with one, two, or three 30/60 amp circuit breakers. These breaker(s) protect the internal wiring in the event of a short circuit and serve as a disconnect. Circuit breakers installed within the unit do not provide over-current protection of the supply wiring and therefore may be sized larger than the branch circuit protection.
· Supply circuit power wiring must be 75°C minimum copper conductors only. See Electrical Data in Sections 3.12.5 and
3.12.6 for ampacity, wire size and circuit protector requirement. Supply circuit protective devices may be either fuses or HACR type circuit breakers.
· Field power wiring may be connected to either the right, left side or top. Three 7/8, 13/32, 131/32 dia. concentric knockouts
are provided for connection of power wiring to unit.
· Field power wiring is to be connected to the power terminal block in unit control compartment.
· For units equipped with an electric heater kit, field power wiring is to be connected to the heater kit breaker, terminal
block, or pullout disconnect terminals and the power wiring pigtail from the heater kit is to be connected to the unit power terminal block in the unit control compartment. Refer to installation instructions provided with the heater kit for additional details.

3.12.4 COPPER WIRE SIZE - AWG. (3% VOLTAGE DROP)

200 [61]

12 10

8

8 866

6

44

3

3

2

2

1

0

00

S U

L E

150 [46]

12 10 10 10 8 8 6

6

64

4

3

3

2

1

0

00

P P

N G

100 [30]

14 12 10 10 8 8 8

6

64

4

3

3

2

1

0

00

L

T

50 [15]

14

12

10

10 8 8 8

6

6

4

4

3

3

2

1

0

00

Y

H

15

20

25

30 35 40 45 50 60 70 80

90 100 110 125 150

175

W

F

I

E

SUPPLY CIRCUIT AMPACITY

R E

E T

NOTE: WIRE BASED ON COPPER CONDUCTORS 75° MINIMUM RATING FOR MORE THAN 3 CONDUCTORS IN A RACEWAY OR CABLE SEE N.E.C. FOR

DERATING THE AMPACITY OF EACH CONDUCTOR.

29

3.12.5 ELECTRICAL DATA - BLOWER MOTOR ONLY

3.12.5.1 ELECTRICAL DATA  BLOWER MOTOR ONLY  WITHOUT ELECTRIC HEAT: (-)H1PY

MODEL (-)H1P

VOLTAGE

PHASE*

HERTZ

HP

1817S

1/5

2417S

1/5

3017S 3617S

1/4

115

1

60

1/3

4221S

1/2

4821S

3/4

1817S

1/5

2417S

1/5

3017S

1/4

3617S/3621S

208/240

1 & 3

60

1/3

4221S

1/2

4821ST/4824ST

3/4

6024ST

3/4

3617S/3621S

1/3

4221S

480

3

60

1/2

4821S

3/4

*Blower motors are all single phase motors.

RPM
1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075 1075

SPEEDS
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

CIRCUIT AMPS.
2.3 3.8 4.7 6.1 7.9 8.4 1.7 1.7 2.5 2.5 5.2 5.2 5.2 1.7 1.9 2.2

MINIMUM CIRCUIT AMPACITY
3.0 5.0 6.0 8.0 10.0 11.0 3.0 3.0 4.0 4.0 7.0 7.0 7.0 3.0 3.0 3.0

MAXIMUM CIRCUIT PROTECTOR
15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15

3.12.5.2 ELECTRICAL DATA  BLOWER MOTOR ONLY  WITHOUT ELECTRIC HEAT: (-)H2T

MODEL (-)H2T
2417S 3617S/3621M*/3621M
3621S 4821S 4821S*/4824S 4824M 6021S*/6024S

VOLTAGE

PHASE

115

1

HERTZ 60

HP [W]

RPM

SPEEDS

1/3 [249] 300-1100

4

1/2 [373] 300-1100

4

1/3 [249] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

MOTOR AMPS.
2.7 3.4 3.4 3.4 6.5 4.8 8.0

MINIMUM CIRCUIT AMPACITY
4.0 5.0 5.0 5.0 9.0 6.0 10.0

MAXIMUM OVERCURRENT
PROTECTION 15 15 15 15 15 15 15

MODEL (-)H2T
2417S 3617S/3621M*/3621M
3621S 4821S* 4821S 4824S 4824M 6021S* 6024S

VOLTAGE

PHASE

208/240

1 & 3

HERTZ 60

HP [W]

RPM

SPEEDS

1/3 [249] 300-1100

4

1/2 [373] 300-1100

4

1/3 [249] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

MOTOR AMPS.
1.8 2.4 2.3 3.9 3.7 3.2 3.0 5.6 4.7

MINIMUM CIRCUIT AMPACITY
3.0 3.0 3.0 5.0 5.0 4.0 4.0 7.0 6.0

MAXIMUM OVERCURRENT
PROTECTION 15 15 15 15 15 15 15 15 15

MODEL (-)H2T
3617S 3621S 3621M* 3621M 4821S*/4821S 4824S/4824M 6021S* 6024S
"Units with "A" Coil"
30

VOLTAGE

PHASE

480

3

HERTZ 60

HP [W]

RPM

SPEEDS

1/2 [373] 300-1100

4

1/3 [249] 300-1100

4

1/2 [373] 300-1100

4

1/2 [373] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

MOTOR AMPS.
1.3 1.1 1.2 1.1 1.5 2.4 1.9 3.7

MINIMUM CIRCUIT AMPACITY
2.0 2.0 2.0 2.0 2.0 3.0 3.0 5.0

MAXIMUM OVERCURRENT
PROTECTION 15 15 15 15 15 15 15 15

3.12.5.3 ELECTRICAL DATA - BLOWER MOTOR ONLY - WITHOUT ELECTRIC HEAT: (-)H1A

MODEL (-)H1A
2417S 3617S 3621S 4821S 6021S*/6024S

VOLTAGE

PHASE

115

1

HERTZ 60

HP [W]

RPM

SPEEDS

1/3 [249] 300-1100

4

1/2 [373] 300-1100

4

1/3 [249] 300-1100

4

3/4 [559]

1075

2

3/4 [559] 300-1100

4

MOTOR AMPS.
2.7 3.4 3.4 8.4 8.0

MINIMUM CIRCUIT AMPACITY
4.0 5.0 5.0 11.0 10.0

MAXIMUM OVERCURRENT
PROTECTION 15 15 15 15 15

MODEL (-)H1A
2417S 3617S 3621S 4821S 6021S* 6024S
"Units with "A" Coil"

VOLTAGE

PHASE

208/240

1 & 3

HERTZ 60

HP [W]

RPM

SPEEDS

1/3 [249] 300-1100

4

1/2 [373] 300-1100

4

1/3 [249] 300-1100

4

3/4 [559]

1075

2

3/4 [559] 300-1100

4

3/4 [559] 300-1100

4

MOTOR AMPS.
1.8 2.4 2.3 5.2 5.6 4.7

MINIMUM CIRCUIT AMPACITY
3.0 3.0 3.0 7.0 7.0 6.0

MAXIMUM OVERCURRENT
PROTECTION 15 15 15 15 15 15

31

3.12.6 ELECTRICAL DATA  WITH ELECTRIC HEAT
3.12.6.1 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H1PY
Installation of the UL Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements.

AIR HANDLER MODEL (-)H1PY

HEATER MODEL
NO.

HEATER KW
(208/240V)

PH/ HZ

TYPE SUPPLY

NO. ELEMENTS - KW PER

CIRCUIT SINGLE CIRCUIT MULTIPLE

CIRCUIT

RXBH-17?03J-B

2.25/3*0

1/60

1-3.0

SINGLE

RXBH-1724?03J-B 2.25/3.0

1/60

1-3.0

SINGLE

RXBH-1724?05J-B 3.6/4.8

1/60

1-4.8

SINGLE

RXBH-1724?07J-B 5.4/7.2

1/60

2-3.6

SINGLE

RXBH-1724?10J-B 7.2/9.6

1/60

1817S 2417S

RXBH-1724A13J-B 9.4/12.5

1/60

(208/240V)

3.1/4.2

1/60

RXBH-1724A13J-B

6.3/8.3

1/60

2-4.8 3-4.17 1-4.17
2-4.17

SINGLE
SINGLE
MULTIPLE CKT 1
MULTIPLE CKT 2

RXBH-1724A07C-B 5.4/7.2

3/60

3-2.4

SINGLE

RXBH-1724A10C-B 7.2/9.6

3/60

3-3.2

SINGLE

RXBH-1724A13C-B 9.4/12.5

3/60

3-4.17

SINGLE

3017S/3617S (208/240V)

RXBH-17?03J-B

2.25/3.0

1/60

1-3.0

SINGLE

RXBH-1724?03J-B 2.25/3.0

1/60

1-3.0

SINGLE

RXBH-1724?05J-B 3.6/4.8

1/60

1-4.8

SINGLE

RXBH-1724?07J-B 5.4/7.2

1/60

2-3.6

SINGLE

RXBH-1724?10J-B 7.2/9.6

1/60

2-4.8

SINGLE

RXBH-1724A13J-B 9.4/12.5

1/60

3-4.17

SINGLE

RXBH-1724A13J-B

3.1/4.2 6.3/8.3

1/60

1-4.17

1/60

2-4.17

MULTIPLE CKT 1
MULTIPLE CKT 2

RXBH-1724A15J-B 10.8/14.4

1/60

3-4.8

SINGLE

3017S

3.6/4.8

1/60

1-4.8

MULTIPLE CKT 1

3617S 3621S RXBH-1724A15J-B

(208/240V)

7.2/9.6

1/60

2-4.8

MULTIPLE CKT 2

RXBH-1724A18J-B 12.8/17.0

1/60

3-5.68

SINGLE

4.3/5.7

1/60

1-5.68

MULTIPLE CKT 1

RXBH-1724A18J-B

8.5/11.3

1/60

2-5.68

MULTIPLE CKT 2

RXBH-1724A07C-B 5.4/7.2

3/60

3-2.4

SINGLE

RXBH-1724A10C-B 7.2/9.6

3/60

3-3.2

SINGLE

RXBH-1724A13C-B 9.4/12.5

3/60

3-4.17

SINGLE

RXBH-1724A15C-B 10.8/14.4

3/60

3-4.8

SINGLE

RXBH-1724A18C-B 12.8/17.0

3/60

3-5.68

SINGLE

? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect

HEATER AMPS
10.8/125. 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4
30.1/34.7 15.0/17.3 20.0/23.1 26.1/30.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4
30.1/34.7 51.9/60.0 17.3/20.0
34.6/40.0 61.6/70.8 20.5/23.6
41.1/47.2 15.0/17.3 20.0/23.1 26.1/30.1 30.0/34.6 35.5/41.0

MOTOR AMPS

MINIMUM CIRCUIT AMPACITY

Maximum Overcurrent Protection

1.7

16/18

20/20

1.7

16/18

20/20

1.7

24/28

25/30

1.7

35/40

35/40

1.7

46/53

50/60

1.7

59/68

60/70

1.7

21/24

25/25

0

38/44

40/45

1.7

21/24

25/25

1.7

28/31

30/35

1.7

35/40

35/40

2.5

17/19

20/20

2.5

17/19

20/20

2.5

25/29

25/30

2.5

36/41

40/45

2.5

47/54

50/60

2.5

60/69

60/70

2.5

22/25

25/25

0

38/44

40/45

2.5

68/79

70/80

2.5

25/29

25/30

0

44/50

45/50

2.5

81/92

90/100

2.5

29/33

30/35

0

52/59

60/60

2.5

22/25

25/25

2.5

29/32

30/35

2.5

36/41

40/45

2.5

41/47

45/50

2.5

48/55

50/60

32

3.12.6.1 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H1PY - continued

AIR HANDLER MODEL (-)H1PY

HEATER MODEL
NO.

HEATER KW
(208/240V)

PH/HZ

TYPE SUPPLY

NO. ELEMENTS - KW PER

CIRCUIT SINGLE CIRCUIT MULTIPLE

CIRCUIT

HEATER AMPS

RXBH-1724?05J-B

3.6/4.8

1/60

RXBH-1724?07J-B

5.4/7.2

1/60

RXBH-1724?10J-B

7.2/9.6

1/60

RXBH-1724A15J-B 10.8/14.4

1/60

3.6/4.8

1/61

RXBH-1724A15J-B

7.2/9.6

1/60

RXBH-1724A18J-B

12/8/17

1/60

RXBH-1724A18J-B

4.3/5.7 8.5/11.3

1/60 1/60

1-4.8

SINGLE

17.3/20.0

2-3.6 2-4.8 3-4.8 1-4.8
2-4.8 3-5.68 1-5.68

SINGLE
SINGLE
SINGLE
MULTIPLE CKT 1
MULTIPLE CKT 2
SINGLE
MULTIPLE CKT 1

26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0
34.6/40.0 61.6/70.8 20.5/23.6

1-5.68 MULTIPLECKT2 41.1/47.2

RXBH-24A20J-B

14.4/19.2

1/60

4-4.8

SINGLE

4221S 4821S 4824S (208/240V)

7.2/9.5

1/60

RXBH-24A20J-B

7.2/9.6

1/60

RXBH-24A25J-B

18.0/24.0

1/60

6.0/8.0

1/60

RXBH-24A25J-B (4-ton only)

6.0/8.0

1/60

6.0/8.0

1/60

2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0

MULTIPLE CKT 1
MULTIPLE CKT 2
SINGLE
MULTIPLE CKT 1
MULTIPLE CKT 2
MULTIPLE CKT 3

RXBH-1724A070-B

5.4/7.2

3/60

3-2.4

SINGLE

RXBH-1724A10C-B

7.2/9.6

3/60

3-3.2

SINGLE

RXBH-1724A15C-B 10.8/14.4

3/60

3-4.8

SINGLE

RXBH-1724A180-B 12.8/17.0

3/60

3 - 5.68

SINGLE

RXBH-24A20C-B

14.4/19.2

3/60

6-3.2

SINGLE

7.2/9.6

3/60

RXBH-24A20C-B

7.2/9.6

3/60

3-3.2 3-3.2

MULTIPLE CKT 1
MULTIPLE CKT 2

RXBH-24A25C-B

18.0/24.0

3/60

6-4.0

SINGLE

9.0/12.0

3/60

RXBH-24A25C-B

(4-ton only)

9.0/12.0

3/60

? Heater Kit Connection Type A = Breaker B = Terminal Block

3-4.0

MULTIPLE CKT 1

3-4.0

MULTIPLE CKT 2

C = Pullout Disconnect

69.2/80 34.6/40.0
34.6/40.0 86.4/99.9 28.8/33.3
28.8/33.3
28.8/33.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0/23.1
20.0/23.1 50.0/57.8 25.0/28.9
25.0/28.9

MOTOR AMPS
5.2 5.2 5.2 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 0.0 5.2 5.2 5.2 5.2 5.2 5.2 0.0 5.2 5.2 0.0

MINIMUM CIRCUIT AMPACITY

MAXIMUM OVERCURRENT
PROTECTION

29/32 39/44 50/57 72/82 29/32
44/50 84/95 33/36 52/59 93/107 50/57
44/50 115/132
43/49
36/42
36/42 26/29 32/36 44/50 51/58 57/65 32/36
25/29 69/79 38/43
32/37

30/35 40/45 50/60 80/90 30/35
45/50 90/100 35/40 60/60 100/110 50/60
45/50 125/150
45/50
40/45
40/45 30/30 35/40 45/50 60/60 60/70 35/40
25/30 70/80 40/45
35/40

33

3.12.6.1 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H1PY - continued

AIR HANDLER MODEL (-)H1PY
6024S (208/240V)
3617S/3621S (480V) 4221S (480V)
4821S (480V)

HEATER MODEL
NO.
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-24A20J-B
RXBH-24A20J-B
RXBH-24A25J-B
RXBH-24A25J-B
RXBH-24A30J-B
RXBH-24A30J-B
RXBH-17A07D RXBH-17A10D RXBH-17A15D RXBH-17A18D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A25D

HEATER KW
(208/240V)

PH/HZ

TYPE SUPPLY

NO. ELEMENTS - KW PER

CIRCUIT SINGLE CIRCUIT MULTIPLE

CIRCUIT

HEATER AMPS

3.6/4.8

1/60

5.4/7.2

1/60

7.2/9.6

1/60

10.8/14.4

1/60

3.6/4.8

1/60

7.2/9.6

1/60

12.8/17.0

1/60

4.3/5.7

1/60

8.5/11.3

1/60

14.4/19.2

1/60

7.2/9.6

1/60

7.2/9.6

1/60

18.0/24.0

1/60

6.0/8.0

1/60

6.0/8.0

1/60

6.0/8.0

1/60

21.6/28.8

1/60

7.2/9.6

1/60

7.2/9.6

1/60

7.2/9.6

1/60

7.2

3/60

9.6

3/60

14.4

3/60

17

3/60

7.2

3/60

9.6

3/60

14.4

3/60

17

3/60

19.2

3/60

7.2

3/60

9.6

3/60

14.4

3/60

17

3/60

19.2

3/60

24

3/60

1-4.8 2-3.6 2-4.8 3-4.8 1-4.8 2-4.8 3/5/68 1/5/68 2/5/68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 2-4.8 2-4.8 2-4.8 3-2.4 3-3.2 3-4.8 3-5.68 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 6-4.0

SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLECKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE

17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 103.8/120 34.6/40.0 34.6/40.0 34.6/40.0
8.7 11.6 17.3 20.4 8.7 11.6 17.3 20.4 23.2 8.7 11.6 17.3 20.4 23.2 28.8

MOTOR AMPS
5.2 5.2 5.2 5.2 5.2 0 5.2 5.2 0 5.2 5.2 0 5.2 5.2 0 0 5.2 5.2 0 0 1.7 1.7 1.7 1.7 1.9 1.9 1.9 1.9 1.9 2.2 2.2 2.2 2.2 2.2 2.2

MINIMUM CIRCUIT AMPACITY

MAXIMUM OVERCURRENT
PROTECTION

29/32 39/44 50/57 72/82 29/32 44/50 84/95 33/36 52/59 93/107 50/57 44/50 115/132 43/49 36/42 36/42 137/157 50/57 44/50 44/50
13 17 24 28 14 17 24 28 32 14 18 25 29 32 39

30/35 40/45 50/60 80/90 30/35 45/50 90/100 35/40 60/60 100/110 50/60 45/50 125/150 45/50 40/45 40/45 150/175 50/60 45/50 45/50
15 20 25 30 15 20 25 30 35 15 20 25 30 35 40

? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect
 D Voltage = 480 Volts. *Values only. No single point kit available. NOTES: · Electric heater BTUH - (heater watts + motor watts) × 3.412 (see air-flow table for motor watts.) · Supply circuit protective devices may be fuses or HACR type circuit breakers. · Motor load is included in single circuit or circuit 1 of multiple circuits. · Heater loads are balanced on 3 phase models with 3 or 6 heating elements only. · Electric heater kits are not permitted for use with 115 volt air-handlers (A voltage). · J Voltage (208/240V) single phase air-handlers are designed to be used with single or three phase 208/240V electric heaters. To connect 3 phase
power to the air handler terminal block, bring only two leads to terminal block, cap, insulate, and fully secure the third lead. · Do not install 480V electric heaters in 208/240V air-handlers. · Do not install 208/240V electric heaters in 480V air-handlers. · If the heater kit is listed under both single and multiple circuits, the heater kit is shipped from factory as multiple circuits. For single phase applica-
tions, Jumper bar kit RXBJ-A21 and RXBJ-A31 can be used to convert multiple circuits to a single supply circuit. See Section 6.2 for details.

34

3.12.6.2 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H2T
Installation of the UL Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements.

AIR HANDLER MODEL (-)H2TY

HEATER MODEL NUMBER

HEATER KW (208/240V)

PH/HZ

NO. ELEMENTS -
KW PER

TYPE SUPPLY CIRCUIT SINGLE CIRCUIT MULTIPLE CIRCUIT

RXBH-17?03J-B

2.25/3.0 1/60

RXBH-1724?03J-B

2.25/3.0 1/60

RXBH-1724?05J-B

3.6/4.8

1/60

RXBH-1724?07J-B

5.4/7.2

1/60

2417STANNJ

RXBH-1724?10J-B RXBH-1724A13J-B

7.2/9.6

1/60

9.4/12.5 1/60

RXBH-1724A13J-B

3.1/4.2

1/60

6.3/8.3

1/60

RXBH-1724A07C-B

5.4/7.2

3/60

RXBH-1724A10C-B

7.2/9.6

3/60

RXBH-17?03J-B

2.25/3.0 1/60

RXBH-1724?03J-B

2.25/3.0 1/60

RXBH-1724?05J-B

3.6/4.8

1/60

RXBH-1724?07J-B

5.4/7.2

1/60

RXBH-1724?10J-B

7.2/9.6

1/60

RXBH-1724A13J-B

9.4/12.5 1/60

3617STANNJ

RXBH-1724A13J-B RXBH-1724A15J-B

3.1/4.2

1/60

6.3/8.3

1/60

10.8/14.4 1/60

RXBH-1724A15J-B

3.6/4.8

1/60

7.2/9.6

1/60

RXBH-1724A18J-B 12.8/17.0 1/60

RXBH-1724A18J-B

4.3/5.7

1/60

8.5/11.3 1/60

RXBH-1724A07C-B

5.4/7.2

3/60

RXBH-1724A10C-B

7.2/9.6

3/60

RXBH-17?03J-B

2.25/3.0 1/60

RXBH-1724?03J-B

2.25/3.0 1/60

RXBH-1724?05J-B

3.6/4.8

1/60

RXBH-1724?07J-B

5.4/7.2

1/60

RXBH-1724?10J-B

7.2/9.6

1/60

RXBH-1724A13J-B

9.4/12.5 1/60

3621STANNJ

RXBH-1724A13J-B RXBH-1724A15J-B

3.1/4.2

1/60

6.3/8.3

1/60

10.8/14.4 1/60

RXBH-1724A15J-B

3.6/4.8

1/60

7.2/9.6

1/60

RXBH-1724A18J-B 12.8/17.0 1/60

RXBH-1724A18J-B

4.3/5.7

1/60

8.5/11.3 1/60

RXBH-1724A07C-B

5.4/7.2

3/60

RXBH-1724A10C-B

7.2/9.6

3/60

RXBH-17?03J-B

2.25/3.0 1/60

RXBH-1724?03J-B

2.25/3.0 1/60

RXBH-1724?05J-B

3.6/4.8

1/60

RXBH-1724?07J-B

5.4/7.2

1/60

RXBH-1724?10J-B

7.2/9.6

1/60

RXBH-1724A13J-B

9.4/12.5 1/60

RXBH-1724A13J-B 3621MTANAJ

3.1/4.2

1/60

6.3/8.3

1/60

3621MTANNJ RXBH-1724A15J-B 10.8/14.4 1/60

RXBH-1724A15J-B

3.6/4.8

1/60

7.2/9.6

1/60

RXBH-1724A18J-B 12.8/17.0 1/60

RXBH-1724A18J-B

4.3/5.7

1/60

8.5/11.3 1/60

RXBH-1724A07C-B

5.4/7.2

3/60

RXBH-1724A10C-B

7.2/9.6

3/60

1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-2.4 3-3.2 1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 3-2.4 3-3.2 1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 3-2.4 3-3.2 1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 3-2.4 3-3.2

SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect

HEATER AMPS
10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 15.0/17.3 20.0/23.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 15.0/17.3 20.0/23.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 15.0/17.3 20.0/23.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 15.0/17.3 20.0/23.1

MOTOR AMPS
1.8 1.8 1.8 1.8 1.8 1.8 1.8 0.0 1.8 1.8 2.4 2.4 2.4 2.4 2.4 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.3 0.0 2.3 2.3 0.0 2.3 2.3 0.0 2.3 2.3 2.4 2.4 2.4 2.4 2.4 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4

MINIMUM CIRCUIT AMPACITY
16/18 16/18 24/28 35/40 46/53 59/68 21/24 38/44 21/24 28/32 17/19 17/19 25/28 36/41 47/53 60/69 22/25 38/44 68/78 25/28 44/50 80/92 29/33 52/59 22/25 28/32 17/19 17/19 25/28 36/41 47/53 60/68 22/25 38/44 68/78 25/28 44/50 80/92 29/33 52/59 22/25 28/32 17/19 17/19 25/28 36/41 47/53 60/69 22/25 38/44 68/78 25/28 44/50 80/92 29/33 52/59 22/25 28/32

MAXIMUM OVERCURRENT PROTECTION
20/20 20/20 30/30 40/40 50/60 60/70 30/30 40/50 30/30 30/40 20/20 20/20 30/30 40/50 50/60 60/70 30/30 40/50 70/80 30/30 50/50 90/100 30/40 60/60 30/30 30/40 20/20 20/20 30/30 40/50 50/60 60/70 30/30 40/50 70/80 30/30 50/50 90/100 30/40 60/60 30/30 30/40 20/20 20/20 30/30 40/50 50/60 60/70 30/30 40/50 70/80 30/30 50/50 90/100 30/40 60/60 30/30 30/40
35

3.12.6.2 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H2T - continued

AIR HANDLER MODEL (-)H2TY
4821STANNJ 4821STANAJ 4824STANNJ

HEATER MODEL NUMBER
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-24A20J-B
RXBH-24A20J-B
RXBH-24A25J-B
RXBH-24A25J-B
RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B RXBH-24A20C-B
RXBH-24A20C-B
RXBH-24A25C-B
RXBH-24A25C-B
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-24A20J-B
RXBH-24A20J-B
RXBH-24A25J-B
RXBH-24A25J-B
RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B RXBH-24A20C-B
RXBH-24A20C-B
RXBH-24A25C-B
RXBH-24A25C-B
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-24A20J-B
RXBH-24A20J-B
RXBH-24A25J-B
RXBH-24A25J-B
RXBH-24A30J-B RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B RXBH-24A20C-B
RXBH-24A20C-B
RXBH-24A25C-B
RXBH-24A25C-B

HEATER KW (208/240V)
3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0
6.0/8.0 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0
6.0/8.0 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/27.6 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0

PH/HZ
1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60

NO. ELEMENTS -
KW PER
1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0

TYPE SUPPLY CIRCUIT SINGLE CIRCUIT MULTIPLE CIRCUIT
SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTI CKT 1 MULTI CKT 2 SINGLE MULTI CKT 1 MULTI CKT 2 MULTI CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTI CKT 1 MULTI CKT 2 SINGLE MULTI CKT 1 MULTI CKT 2 MULTI CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect

HEATER AMPS
17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80.0 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 99.5/115.0 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9

MOTOR AMPS
3.7 3.7 3.7 3.7 3.7 0.0 3.7 3.7 0.0 3.7 3.7 0.0 3.7 3.7 0.0 0.0 3.7 3.7 3.7 3.7 3.7 3.7 0.0 3.7 3.7 0.0 3.9 3.9 3.9 3.9 3.9 0.0 3.9 3.9 0.0 3.9 3.9 0.0 3.9 3.9 0.0 0.0 3.9 3.9 3.9 3.9 3.9 3.9 0.0 3.9 3.9 0.0 3.2 3.2 3.2 3.2 3.2 0.0 3.2 3.2 0.0 3.2 3.2 0.0 3.2 3.2 0.0 0.0 3.2 3.2 3.2 3.2 3.2 3.2 3.2 0.0 3.2 3.2 0.0

MINIMUM CIRCUIT AMPACITY
27/30 38/43 48/55 70/80 27/30 44/50 82/94 31/35 52/59 92/105 48/55 44/50 113/130 41/47 36/42 36/42 24/27 30/34 43/48 50/56 55/63 30/34 25/29 68/77 36/41 32/37 27/30 38/43 48/55 70/80 27/30 44/50 82/94 31/35 52/59 92/105 49/55 44/50 113/130 41/47 36/42 36/42 24/27 30/34 43/49 50/57 55/63 30/34 25/30 68/78 37/41 32/37 26/29 37/42 48/54 69/79 26/29 44/50 81/93 30/34 52/59 91/104 48/54 44/50 112/129 42/48 36/42 36/42 129/148 23/26 29/33 42/48 49/56 54/62 29/33 25/29 67/77 36/41 32/37

MAXIMUM OVERCURRENT PROTECTION
30/30 40/50 50/60 70/80 30/30 50/50 90/100 40/40 60/60 100/110 50/60 50/50 120/150 50/50 40/50 40/50 30/30 30/40 50/50 50/60 60/70 30/35 25/30 70/80 40/45 35/40 30/30 40/50 50/60 70/80 30/30 50/50 90/100 40/40 60/60 100/110 50/60 50/50 120/150 50/50 40/50 40/50 30/30 30/40 50/50 50/60 60/70 30/35 25/30 70/80 40/45 35/40 30/30 40/45 50/60 70/80 30/35 50/50 90/100 30/35 60/60 100/110 50/60 50/50 120/130 50/50 40/50 40/50 130/150 25/30 30/35 45/50 50/60 60/70 30/35 30/30 70/80 40/45 40/40

36

3.12.6.2 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H2T - continued

AIR HANDLER MODEL (-)H2TY

HEATER MODEL NUMBER

HEATER KW PH/HZ
(208/240V)

NO. ELEMENTS -
KW PER

TYPE SUPPLY CIRCUIT SINGLE CIRCUIT
MULTIPLE CIRCUIT

4824MTANNJ

RXBH-1724(A/B/C)05J/-B RXBH-1724(A/B/C)07J/-B RXBH-1724(A/B/C)10J/-B
RXBH-1724A15J/-B RXBH-1724A15J/-B RXBH-1724A18J/-B RXBH-1724A18J/-B
RXBH-24A20J/-B RXBH-24A20J/-B RXBH-24A25J/-B
RXBH-24A25J/-B

RXBH-24A30J/-B RXBH-1724A07C/-B RXBH-1724A10C/-B RXBH-1724A15C/-B RXBH-1724A18C/-B
RXBH-24A20C/-B
RXBH-24A20C/-B
RXBH-24A25C/-B
RXBH-24A25C/-B
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B RXBH-1724A15J-B

RXBH-1724A18J-B RXBH-1724A18J-B

RXBH-24A20J-B RXBH-24A20J-B

RXBH-24A25J-B RXBH-24A25J-B

6021STANAJ

RXBH-24A30J-B RXBH-24A30J-B

RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B
RXBH-24A20C-B RXBH-24A20C-B
RXBH-24A25C-B RXBH-24A25C-B
RXBH-24A30C-B RXBH-24A30C-B

3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/26.2 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/27.6 6.9/9.2 6.9/9.2 6.9/9.2 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 20.7/27.6 10.3/13.8 10.3/13.8

1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60

1-4.8 2-3.6 2-4.8 3-4.8 1-4.8 2-4.8 3-5.68 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.36 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 2-4.8 2-4.8 2-4.8 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 6-4.8 3-4.8 3-4.8

SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect

HEATER
AMPS
17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80.0 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 99.5/115.0 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0/23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80.0 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 99.5/115.0 33.2/38.3 33.2/38.3 33.2/38.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 57.5/66.4 28.8/33.2 28.8/33.2

MOTOR
AMPS
3.0 3.0 3.0 3.0 3.0 0.0 3.0 3.0 0.0 3.0 3.0 0.0 3.0 3.0 0.0 0.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 0.0 3.0 3.0 0.0 5.6 5.6 5.6 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0 0 5.6 5.6 0 0 5.6 5.6 5.6 5.6 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0

MINIMUM MAXIMUM

CIRCUIT OVERCURRENT

AMPACITY PROTECTION

26/29 37/42 47/54 69/79 26/29 44/50 81/93 30/34 52/59 91/104 47/54 44/50 112/129 40/46 36/42 36/42 129/148 23/26 29/33 42/47 49/55 54/62 29/33 25/29 67/76 35/40 32/37 29/32 40/45 51/57 72/82 29/32 50/56 83/95 33/37 52/59 94/107 51/57 44/50 115/132 43/49 36/42 36/42 132/151 49/55 42/48 42/48 26/29 32/36 45/51 52/59 57/65 32/36 25/29 70/73 39/44 31/37 79/90 43/49 36/42

30/30 40/45 50/60 70/80 30/35 50/50 90/100 30/35 60/60 100/110 50/60 50/50 120/130 45/50 40/50 40/50 130/150 25/30 30/35 45/50 50/60 60/70 30/35 30/30 70/80 40/45 40/40 30/35 40/45 60/60 80/90 30/35 50/60 90/100 35/40 60/60 100/110 60/60 50/50 120/140 50/50 40/50 40/50 140/160 50/60 50/50 50/50 30/30 40/40 50/60 60/60 60/70 35/40 30/30 70/80 40/45 35/40 80/90 50/50 40/50

37

3.12.6.2 ELECTRICAL DATA  WITH ELECTRIC HEAT: (-)H2T - continued

RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B RXBH-1724A15J-B
RXBH-1724A18J-B RXBH-1724A18J-B
RXBH-24A20J-B RXBH-24A20J-B
RXBH-24A25J-B RXBH-24A25J-B

6024STANNJ

RXBH-24A30J-B RXBH-24A30J-B

3617STANND 3621MTANAD/ 3621MTANND/ 3621STANND 4821STANAD/ 4821STANND
4824STANND
6021STANAD
6024STANND

RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B
RXBH-24A20C-B RXBH-24A20C-B
RXBH-24A25C-B RXBH-24A25C-B
RXBH-24A30C-B RXBH-24A30C-B
RXBH-17A07D RXBH-17A10D RXBH-17A15D RXBH-17A18D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A25D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A25D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A07D RXBH-24A10D RXBH-24A15D RXBH-24A18D RXBH-24A20D RXBH-24A25D RXBH-24A30D

3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/27.6 6.9/9.2 6.9/9.2 6.9/9.2 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 20.7/27.6 10.3/13.8 10.3/13.8
7.2 9.6 14.4 17 7.2 9.6 14.4 17 7.2 9.6 14.4 17 19.2 24 7.2 9.6 14.4 17 19.2 24 7.2 9.6 14.4 17 19.2 7.2 9.6 14.4 17 19.2 24 28.8

Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Jan-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60 Mar-60

1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 2-4.8 2-4.8 2-4.8 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 6-4.8 3-4.8 3-4.8 3-2.4 3-3.2 3-4.8 3-5.68 3-2.4 3-3.2 3-4.8 3-5.68 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 6-4.0 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 6-4.0 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 3-2.4 3-3.2 3-4.8 6-2.84 6-3.2 6-4.0 6-4.8

SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE

17.3/20.0

4.7

26.0/30.0

4.7

34.6/40.0

4.7

51.9/60.0

4.7

17.3/20.0

4.7

34.6/40.0

0

61.6/70.8

4.7

20.5/23.6

4.7

41.1/47.2

0

69.2/80.0

4.7

34.6/40.0

4.7

34.6/40.0

0

86.4/99.9

4.7

28.8/33.3

4.7

28.8/33.3

0

28.8/33.3

0

103.8/120.0 4.7

34.6/40.0

4.7

34.6/40.0

0

34.6/40.0

0

15.0/17.3

4.7

20.0/23.1

4.7

30.0/34.6

4.7

35.6/41.0

4.7

40.0/46.2

4.7

20.0-23.1

4.7

20.0/23.1

0

50.0/57.8

4.7

25.0/28.9

4.7

25.0/28.9

0

57.5/66.4

4.7

28.8/33.2

4.7

28.8/33.2

0

8.7

0.7

11.6

0.7

17.3

0.7

20.4

0.7

8.7

0.7

11.6

0.7

17.3

0.7

20.4

0.7

8.7

1.1

11.6

1.1

17.3

1.1

20.4

1.1

23.2

1.1

28.8

1.1

8.7

0.9

11.6

0.9

17.3

0.9

20.4

0.9

23.2

0.9

28.8

0.9

8.7

1.7

11.6

1.7

17.3

1.7

20.4

1.7

23.2

1.7

8.7

1.5

11.6

1.5

17.3

1.5

20.4

1.5

23.2

1.5

28.8

1.5

34.6

1.5

28/31 39/44 50/56 71/81 28/31 50/56 83/95 32/36 52/59 93/106 50/56 44/50 114/131 42/48 36/42 36/42 135/156 50/56 44/50 44/50 25/28 31/35 44/50 51/58 56/64 31/35 25/29 69/79 38/42 32/37 78/89 42/48 36/42
12 16 23 27 12 16 23 27 13 16 23 27 31 38 12 16 23 27 31 38 13 17 24 28 32 13 17 24 28 31 38 46

30/35 40/45 50/60 80/90 30/35 50/60 90/100 35/40 60/60 100/110 50/60 50/50 120/140 50/50 40/50 40/50 140/160 50/60 50/50 50/50 30/30 40/40 50/50 60/60 60/70 40/40 30/30 70/80 40/50 40/40 80/90 50/50 40/50
15 20 25 30 15 20 25 28 15 20 25 30 35 40 15 20 25 30 35 40 15 20 25 30 35 15 18 25 30 35 40 50

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect
*Values only. No single point kit available. NOTES: · Electric heater BTUH - (heater watts + motor watts) x 3.414 (see air-flow table for motor watts.) · Supply circuit protective devices may be fuses or HACR type circuit breakers. · If non-standard fuse size is specified, use next size larger standard fuse size. · Largest motor load is included in single circuit or circuit 1 of multiple circuits. · Heater loads are balanced on 3 phase models with 3 or 6 heaters only. · No electrical heating elements are permitted to be used with A Voltage (115V) air handler. · J Voltage (208/240V) single phase air handler is designed to be used with single or three phase 208/240V electric heaters. In the case of connecting 3 phase power to air handler terminal block with-
out the heater, bring only two leads to terminal block, cap, insulate and fully secure the third lead. · Do not use 480V electrical heaters on 208/240V air handler. · If the kit is listed under both single and multiple circuits, the kit is shipped from factory as multiple circuits. For single phase application, Jumper bar kit RXBJ-A21 and RXBJ-A31 can be used to con-
vert multiple circuits to a single supply circuit. Refer to Accessory Section for details.

38

3.12.6.3 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1A

AIR HANDLER MODEL (-)H1AY
2417STANNJ 3617STANNJ 3621STANNJ
4821STANNJ

HEATER MODEL NUMBER
RXBH-17?03J-B RXBH-1724?03J-B RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A13J-B
RXBH-1724A13J-B
RXBH-1724A07C-B RXBH-1724A10C-B
RXBH-17?03J-B RXBH-1724?03J-B RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A13J-B
RXBH-1724A13J-B
RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-1724A07C-B RXBH-1724A10C-B
RXBH-17?03J-B RXBH-1724?03J-B RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A13J-B
RXBH-1724A13J-B
RXBH-1724A15J-B
RXBH-1724A15J-B
RXBH-1724A18J-B
RXBH-1724A18J-B
RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724?05J-1 RXBH-1724?07J-1 RXBH-1724?10J-1 RXBH-1724A15J-1
RXBH-1724A15J-1
RXBH-1724A18J-1
RXBH-1724A18J-1
RXBH-24A20J-1
RXBH-24A20J-1
RXBH-24A25J-1
RXBH-24A25J-1
(4-ton only)
RXBH-1724A070-1 RXBH-1724A10C-1 RXBH-1724A15C-1 RXBH-1724A18C-1 RXBH-24A20C-1
RXBH-24A20C-1
RXBH-24A25C-1 RXBH-24A25C-1 (4-ton
only)

HEATER KW (208/240V)
2.25/3.0 2.25/3.0 3.6/4.8 5.4/7.2 7.2/9.6 9.4/12.5 3.1/4.2 6.3/8.3 5.4/7.2 7.2/9.6 2.25/3.0 2.25/3.0 3.6/4.8 5.4/7.2 7.2/9.6 9.4/12.5 3.1/4.2 6.3/8.3 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 5.4/7.2
7.2/9.6 2.25/3.0 2.25/3.0 3.6/4.8 5.4/7.2 7.2/9.6 9.4/12.5 3.1/4.2 6.3/8.3 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 5.4/7.2 7.2/9.6 3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 43077 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.5 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0
9.0/12.0

PH/HZ
1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60
3/60

NO. ELEMENTS -
KW PER
1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-2.4 3-3.2 1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 3-2.4 3-3.2 1-3.0 1-3.0 1-4.8 2-3.6 2-4.8 3-4.17 1-4.17 2-4.17 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 3-2.4 3-3.2 1-4.8 2-3.6 2-4.8 3-4.8 1-4.8 2-4.8 3-5.68 1-5.68 1-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 3-2.4 3-3.2 3-4.8 3 - 5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0
3-4.0

TYPE SUPPLY CIRCUIT SINGLE CIRCUIT MULTIPLE CIRCUIT
SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLECKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1
MULTIPLE CKT 2

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect

HEATER AMPS
10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 15.0/17.3 20.0/23.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 15.0/17.3 20.0/23.1 10.8/12.5 10.8/12.5 17.3/20.0 26.0/30.0 34.6/40.0 45.1/52.1 15.0/17.4 30.1/34.7 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 15.0/17.3 20.0/23.1 17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0/23.1 20.0/23.1 50.0/57.8 25.0/28.9
25.0/28.9

MOTOR AMPS
1.8 1.8 1.8 1.8 1.8 1.8 1.8 0.0 1.8 1.8 2.4 2.4 2.4 2.4 2.4 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4 0.0 2.4 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.3 0 2.3 2.3 0 2.3 2.3 0 2.3 2.3 5.2 5.2 5.2 5.2 5.2 0 5.2 5.2 0 5.2 5.2 0 5.2 5.2 0 0 5.2 5.2 5.2 5.2 5.2 5.2 0 5.2 5.2
0

MINIMUM CIRCUIT AMPACITY
16/18 16/18 24/28 35/40 46/53 59/68 21/24 38/44 21/24 28/32 17/19 17/19 25/28 36/41 47/53 60/69 22/25 38/44 68/78 25/28 44/50 80/92 29/33 52/59 22/25 28/32 17/19 17/19 25/28 36/41 47/53 60/68 22/25 38/44 68/78 25/28 44/50 80/92 29/33 52/59 22/25 28/32 29/32 39/44 50/57 72/82 29/32 44/50 84/95 33/36 52/59 93/107 50/57 44/50 115/132 43/49 36/42 36/42 26/29 32/36 44/50 51/58 57/65 32/36 25/29 69/79 38/43
32/37

MAXIMUM OVERCURRENT PROTECTION
20/20 20/20 30/30 40/40 50/60 60/70 30/30 40/50 30/30 30/40 20/20 20/20 30/30 40/50 50/60 60/70 30/30 40/50 70/80 30/30 50/50 90/100 30/40 60/60 30/30 30/40 20/20 20/20 30/30 40/50 50/60 60/70 30/30 40/50 70/80 30/30 50/50 90/100 30/40 60/60 30/30 30/40 30/35 40/45 50/60 80/90 30/35 45/50 90/100 35/40 60/60 100/110 50/60 45/50 125/150 45/50 40/45 40/45 30/30 35/40 45/50 60/60 60/70 35/40 25/30 70/80 40/45
35/40

39

3.12.6.3 ELECTRICAL DATA - WITH ELECTRIC HEAT: (-)H1A - continued

AIR HANDLER MODEL (-)H1AY
6021STANAJ
6024STANNJ

HEATER MODEL NUMBER
RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B RXBH-1724A15J-B RXBH-1724A18J-B RXBH-1724A18J-B RXBH-24A20J-B RXBH-24A20J-B RXBH-24A25J-B
RXBH-24A25J-B
RXBH-24A30J-B
RXBH-24A30J-B
RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B RXBH-24A20C-B RXBH-24A20C-B RXBH-24A25C-B RXBH-24A25C-B RXBH-24A30C-B RXBH-24A30C-B RXBH-1724?05J-B RXBH-1724?07J-B RXBH-1724?10J-B RXBH-1724A15J-B RXBH-1724A15J-B RXBH-1724A18J-B RXBH-1724A18J-B
RXBH-24A20J-B RXBH-24A20J-B RXBH-24A25J-B
RXBH-24A25J-B
RXBH-24A30J-B
RXBH-24A30J-B
RXBH-1724A07C-B RXBH-1724A10C-B RXBH-1724A15C-B RXBH-1724A18C-B RXBH-24A20C-B RXBH-24A20C-B RXBH-24A25C-B RXBH-24A25C-B RXBH-24A30C-B RXBH-24A30C-B

HEATER KW (208/240V)
3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/27.6 6.9/9.2 6.9/9.2 6.9/9.2 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 20.7/27.6 10.3/13.8 10.3/13.8 3.6/4.8 5.4/7.2 7.2/9.6 10.8/14.4 3.6/4.8 7.2/9.6 12.8/17.0 4.3/5.7 8.5/11.3 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 6.0/8.0 6.0/8.0 6.0/8.0 20.7/27.6 6.9/9.2 6.9/9.2 6.9/9.2 5.4/7.2 7.2/9.6 10.8/14.4 12.8/17.0 14.4/19.2 7.2/9.6 7.2/9.6 18.0/24.0 9.0/12.0 9.0/12.0 20.7/27.6 10.3/13.8 10.3/13.8

PH/HZ
1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 1/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60 3/60

NO. ELEMENTS -
KW PER
1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 2-4.8 2-4.8 2-4.8 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 6-4.8 3-4.8 3-4.8 1-4.8 2-3.6 2-4.8 3-4.18 1-4.18 2-4.18 4-4.26 1-5.68 2-5.68 4-4.8 2-4.8 2-4.8 6-4.0 2-4.0 2-4.0 2-4.0 6-4.8 2-4.8 2-4.8 2-4.8 3-2.4 3-3.2 3-4.8 3-5.68 6-3.2 3-3.2 3-3.2 6-4.0 3-4.0 3-4.0 6-4.8 3-4.8 3-4.8

TYPE SUPPLY CIRCUIT SINGLE CIRCUIT MULTIPLE CIRCUIT
SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2 MULTIPLE CKT 3 SINGLE SINGLE SINGLE SINGLE SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT2 SINGLE MULTIPLE CKT 1 MULTIPLE CKT 2

HEATER AMPS
17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80.0 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 99.5/115.0 33.2/38.3 33.2/38.3 33.2/38.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 57.5/66.4 28.8/33.2 28.8/33.2 17.3/20.0 26.0/30.0 34.6/40.0 51.9/60.0 17.3/20.0 34.6/40.0 61.6/70.8 20.5/23.6 41.1/47.2 69.2/80.0 34.6/40.0 34.6/40.0 86.4/99.9 28.8/33.3 28.8/33.3 28.8/33.3 99.5/115.0 33.2/38.3 33.2/38.3 33.2/38.3 15.0/17.3 20.0/23.1 30.0/34.6 35.6/41.0 40.0/46.2 20.0-23.1 20.0/23.1 50.0/57.8 25.0/28.9 25.0/28.9 57.5/66.4 28.8/33.2 28.8/33.2

MOTOR AMPS
5.6 5.6 5.6 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0 0 5.6 5.6 0 0 5.6 5.6 5.6 5.6 5.6 5.6 0 5.6 5.6 0 5.6 5.6 0 4.7 4.7 4.7 4.7 4.7 0 4.7 4.7 0 4.7 4.7 0 4.7 4.7 0 0 4.7 4.7 0 0 4.7 4.7 4.7 4.7 4.7 4.7 0 4.7 4.7 0 4.7 4.7 0

MINIMUM CIRCUIT AMPACITY
29/32 40/45 51/57 72/82 29/32 50/56 83/95 33/37 52/59 94/107 51/57 44/50 115/132 43/49 36/42 36/42 132/151 49/55 42/48 42/48 26/29 32/36 45/51 52/59 57/65 32/36 25/29 70/73 39/44 31/37 79/90 43/49 36/42 28/31 39/44 50/56 71/81 28/31 50/56 83/95 32/36 52/59 93/106 50/56 44/50 114/131 42/48 36/42 36/42 131/150 48/54 42/48 42/48 25/28 31/35 44/50 51/58 56/64 31/35 25/29 69/79 38/42 32/37 78/89 42/48 36/42

MAXIMUM OVERCURRENT PROTECTION
30/35 40/45 60/60 80/90 30/35 50/60 90/100 35/40 60/60 100/110 60/60 50/50 120/140 50/50 40/50 40/50 140/160 50/60 50/50 50/50 30/30 40/40 50/60 60/60 60/70 35/40 30/30 70/80 40/45 35/40 80/90 50/50 40/50 30/35 40/45 50/60 80/90 30/35 50/60 90/100 35/40 60/60 100/110 50/60 50/50 120/140 50/50 40/50 40/50 140/160 50/60 50/50 50/50 30/30 40/40 50/50 60/60 60/70 40/40 30/30 70/80 40/50 40/40 80/90 50/50 40/50

· ? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect
*Values only. No single point kit available. NOTES: · Electric heater BTUH - (heater watts + motor watts) x 3.414 (see air-flow table for motor watts.) · Supply circuit protective devices may be fuses or HACR type circuit breakers. · If non-standard fuse size is specified, use next size larger standard fuse size. · Largest motor load is included in single circuit or circuit 1 of multiple circuits. · Heater loads are balanced on 3 phase models with 3 or 6 heaters only. · No electrical heating elements are permitted to be used with A Voltage (115V) air handler. · J Voltage (208/240V) single phase air handler is designed to be used with single or three phase 208/240V electric heaters. In the case of connecting 3 phase power to air handler terminal block with-
out the heater, bring only two leads to terminal block, cap, insulate and fully secure the third lead. · Do not use 480V electrical heaters on 208/240V air handler. · If the kit is listed under both single and multiple circuits, the kit is shipped from factory as multiple circuits. For single phase application, Jumper bar kit RXBJ-A21 and RXBJ-A31 can be used to con-
vert multiple circuits to a single supply circuit. Refer to Accessory Section for details.

40

3.12.7 ELECTRIC HEATER KIT SUPPLEMENTAL INFORMATION

If a heater kit is listed both Single and Multi-circuit, the kit is shipped as a Multi-circuit and will require a single point kit.

(-)HLA-HM4821JA

AIR CONDITIONING DIVISION

MARK HEATER INSTALLED/ L'APPAREIL DE CHAUFFAGE DE MARQUE A INSTALLE

Only listed kits can be applied

Contractor should mark or check the left column for the kit installed. These are the required maximum and minimum circuit breaker sizes for overcurrent protection and should not be confused with the size of the breakers installed in the heater kit.

Hupetaote60r KamitpSsuinpspidleemtheenatiar lhaInnfdolermr, wahtieonn:usWinghaatnaallopwprsotvheedmHaenautefarcKtuitr?er to use standard Circuit Breakers
Nciphianniraparggocvpttuienkleoyiioc,tntnstthaaei,olalrevoenEsesfslfrrbleoeebetcrsqheetssuraenihicntrnhoeUC1aridnLt2ontct5deao4irenppc8bdpeu(eaerSriotcmdfevapecptecrnotosdtitoot,poefnruroyfcosr4-tttiiih2nesoneh4scngtto-la2aboprlt2nraloeecbddwdai)rtakecoawenrunirpdiwtdsthriNopiroUnivrEnf,oLidgnCoteseorlcte4taoata2minnod4ddonti-inahs2r.ecgre2doctthshno,eanawtanehlhltocee6itcwr.0a.hAiTsardluhlmhebeianspdntcbsievdrr.ireiblnAdeaeairdnksldugeutinrthnhsiioteie.tinnaTswatuhtilinhlrpeyigenppbgleheer,leemrewaamNehtkenEeeertnrrCasektri4ytitnh2aoe4trvhe-bee3nrrbecho,uaeta,rkaraeetr-anrnstdtAaiTnnhmsdetpatNalhlacaeitttiiyoMo,nna(anixnloimsEtturbleumrccettaraioikcnnedCsr Mospidrzinoeeivm)(i,dNudeEmesCtetc)hrimrsecpiuinenietcfoisbfrirmesesuaapktthipeoalrnytstctiohzireecpurs(oinutpopwetpeirrlldyey oassrbeizobleevr.caetTn)whcoehirreacinimarctnphudaeitccumiitrnycuitulssiisttstbbeperdeepcoairnkfoiecttearh/ctepitoreuondntesiatchtrteaotehtritensogiszroepu.larctee.
41

3.12.8 CONTROL WIRING
IMPORTANT: Class 2 low voltage control wire should not be run in conduit with power wiring and must be separated from power wiring, unless class 1 wire of proper voltage rating is used.
· Low voltage control wiring should be 18 Awg. color-coded. For lengths longer than 100 ft., 16 Awg. wire should be
used.
· Low voltage control connections are made to low voltage pigtails extending from top of air handler (upflow position -
see Figure 3). Connections for control wiring are made with wire nuts. Control wiring knockouts (5/8 and 7/8) are also provided on the right and left side of the unit for side connection.
· See Section 3.12.9 below for control wiring connections. · Make sure, after installation, separation of control wiring and power wiring has been maintained. · See Section 3.12.1 for how to reconfigure transformer for 208 volt applications.
3.12.9 THERMOSTAT & CONTROL WIRING CONNECTIONS

NOTE: These low voltage application diagrams are generic. Your indoor/outdoor units may not have all the characteristics shown or may not wire exactly as shown. Refer to the diagrams and information sent with your indoor/ outdoor sections.
FIGURE 14: (-)H1P/(-)H2T/(-)H1A
TYPICAL THERMOSTAT: SINGLE STAGE COOLING W / ELECTRIC HEAT
**For 13kW or higher, W1 and W2 can be connected together for maximum outlet temperature rise.

WIRE COLOR CODE: BK - BLACK G - GREEN P - PINK W - WHITE BR - BROWN GY - GRAY PR - PURPLE Y - YELLOW GL - BLUE O - ORANGE R - RED
FIGURE 15: (-)H1P/(-)H2T
TYPICAL THERMOSTAT: SINGLE STAGE HEAT PUMP W / ELECTRIC HEAT

*(-)H1P has no Y connection. Connect Y on outdoor unit directly to Y on thermostat on (-)H1P.

FIGURE 16: (-)H2T
TYPICAL 2-STAGE THERMOSTAT: 2-STAGE COOLING WITH ELECTRIC HEAT
Typical Two-Stage Thermostat
Y1 Y2 G W1 W2 C R

Air Handler

W1

*

W2 Y1 Y2

R

C G

A/C Outdoor
Unit

Y

Y1

Y/BL

Y2

R

R

BR

C

WIRING INFORMATION Lin--eFFaiVecoltdlotaIrnygseStatallneddard

*When using 13kW and higher, W1 and W2 can be connected together for maximum temperature rise.

**For 13kW or higher, W1 and W2 can be connected together for maximum outlet temperature rise. *(-)H1P has no Y connection. Connect Y on outdoor unit directly to Y on thermostat on (-)H1P.
FIGURE 17: (-)H2T
TYPICAL 2-STAGE THERMOSTAT: 2-STAGE HEAT PUMP WITH ELECTRIC BACK-UP HEAT
*
*When using 13kW and higher, W1 and W2 can be connected together for maximum temperature rise.

42

FIGURE 18: (-)H1PY/(-)H2TY/(-)H1AY

TYPICAL SINGLE-STAGE THERMOSTAT: SINGLE-STAGE COOLING WITH ELEC-

TRIC HEAT

A/C Thermostat

R C Y1 G W1 W2

Indoor Unit Cabinet Non-Communicating
Air Handler
R
C

Non-Communicating Condensing Unit
C

** Y

Y1

G

W1 *
W2

A2L Refrigenent Detection System
R
*** G

Field Installed Factory Standard
*For 13KW or higher, W1 and W2 can be connected together for maiximum outlet temperature rise.
**(-)H1P has no Y connection. Connect Y on outdoor unitdirectly to Y on thermostat on (-)H1P
***(-)H2TY will not use G call for A2L RDS

FIGURE 20: (-)H2TY
TYPICAL 2-STAGE THERMOSTAT: 2-STAGE COOLING WITH ELECTRIC HEAT

Indoor Unit Cabinet Non-Communicating
Air Handler
R C Y1 Y2 G
W1 *
W2

Typical Two-Stage Thermostat R C Y1 Y2 G W1 W2
Non-Communicating Heat Pump
R C Y1 Y2

A2L Refrigenent Detection System R

Field Installed Factory Standard

FIGURE 19: (-)H1PY/(-)H2TY

TYPICAL SINGLE-STAGE THERMOSTAT: SINGLE STAGE HEAT PUMP WITH

ELECTRIC HEAT

Heat Pump Thermostat R C Y1 G W1 W2 B

Indoor Unit Cabinet
Non-Communicating Air Handler

Non-Communicating Heat Pump

R

R

C

C

Y1

Y1

**

Y2

Y2

G

E/W1
* W2

B

A2L Refrigenent Detection System

D

R *** G

Field Installed Factory Standard

*For 13KW or higher, W1 and W2 can be connected together for maiximum outlet temperature rise. **(-)H1P has no Y connection. Connect Y on outdoor unitdirectly to Y on thermostat on (-)H1P ***(-)H2TY will not use G call for A2L RDS

FIGURE 21: (-)H2T

TYPICAL 2-STAGE THERMOSTAT: 2-STAGE HEAT PUMP WITH ELECTRIC HEAT

Indoor Unit Cabinet
Non-Communicating Air Handler

Heat Pump Thermostat R C Y1 Y2 G W1 W2 B

R C Y1 Y2 G
E/W1
* W2
A2L Refrigenent Detection System R

Non-Communicating Heat Pump R C Y1 Y2 B D
Field Installed Factory Standard

*For 13KW or higher, W1 and W2 can be connected together for maiximum outlet temperature rise.

*For 13KW or higher, W1 and W2 can be connected together for maiximum outlet temperature rise.

3.13 Air-flow
Air-flow performance data is based on a dry indoor coil and no return air filter in place. Make sure external static applied to unit allows operation within the minimum and maximum limits shown in Section 3.13.1 below for both cooling and electric heat operation. For optimum blower performance, operate the unit in the .5 to .7 in W.C. external static range. Units should be applied with a minimum of .1 in W.C. external static pressure.
NOTE: The air-flow performance data tables (see Section 3.13.3) list air-flow information for air-handlers without heater and with maximum heater kW allowed for each model. The following formula can be used to calculate the adjusted CFM for smaller kW heaters. Adjusted CFM = No Heat CFM  [(No Heat CFM  Max kW CFM) ×ActualkW]
Max kW
3.13.1 GENERAL AIR-FLOW OPERATING LIMITS

&DELQHW:LGWK   





&RROLQJ%78+[        &RROLQJ7RQV1RPLQDO     

+HDW3XPSRU$LU&RQGLWLRQLQJ 0D[LPXP+HDW&RRO&)0>/V@       
 &)0>/V@%78+ >@ >@ >@ >@>@ >@ >@ >@>@ &)0>/V@7RQ1RPLQDO

+HDW3XPSRU$LU&RQGLWLRQLQJ 1RPLQDO+HDW&RRO&)0>/V@       
 &)0>/V@%78+ >@ >@ >@ >@>@ >@ >@ >@>@ &)0>/V@7RQ1RPLQDO

+HDW3XPSRU$LU&RQGLWLRQLQJ 0LQLPXP+HDW&RRO&)0>/V@       
 &)0>/V@%78+ >@ >@ >@ >@>@ >@ >@ >@>@ &)0>/V@7RQ1RPLQDO

0D[LPXPN:(OHFWULF+HDWLQJ        0LQLPXP(OHFWULF+HDW&)0>/V@>@ >@ >@ >@>@ >@ >@ >@>@

0D[LPXP(OHFWULF+HDW5LVH) >&@ >@ >@ >@ >@>@>@ >@ >@>@

*CFM [L/s] per ton requirements are reduced for 5 ton systems.

43

3.13.2 SELECTING INDOOR BLOWER MOTOR SPEED
The (-)H1P/(-)H2T/(-)H1A air-handlers must be configured in the field to assure proper air-flow is delivered for the particular application it is being used in. Refer to the AIR-FLOW PERFORMANCE DATA in Section 3.13.3 to determine which speed tap is appropriate for the application. Important: The pressure drop through the required external filter is not included in the external static pressure shown in the Air-Flow Performance Tables in Section 3.13.3. The filter pressure drop must be added to the duct system pressure drop to determine total external static pressure. Filter pressure drop increases as the filter becomes dirty and must be considered when calculating worst case external static pressure. 3.13.2.1 (-)H1P/(-)H1AY4821ST MODELS (PSC MOTOR) (-)H1P/(-)H1AY4821ST models are designed to be matched to a specific capacity outdoor unit, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, or 5.0 tons. They have PSC motors with 2 blower motor speed taps, low speed for applications with an external static pressure of up to 0.5 W.C. and high speed for applications with an external static pressure above 0.5 W.C. All models are shipped from the factory wired for high speed operation. Note: The external filter pressure drop must be included in the external static pressure when selecting a blower motor speed. 115V & 208/240V Models: The speed selection is made on the Blower Control Board. To change from high speed to low speed, remove the BLACK motor lead from the COM terminal, remove insulated cap from the end of the RED motor lead located in the control box and plug it into the terminal on the end of the BLACK motor lead to prevent it from shorting to ground. Attach RED wire to the COM terminal on the Blower Control Board. 480V Models: The speed selection is made on the Blower Relay. To change from high speed to low speed, remove the BLACK motor lead from terminal 3 on the Blower Relay and remove the cap from the terminal on the end of the RED motor lead. Connect the RED motor lead to terminal 3 on the Blower Relay. For 3-4 ton models only, connect the BLACK and YELLOW motor leads together. 3.13.2.2 (-)H2T MODELS (CONSTANT TORQUE ECM MOTOR) - 2 STAGE AIR-FLOW (-)H2T models are specifically designed to be matched with 2-stage outdoor units, but can also be matched with single-stage outdoor units if properly configured for the correct indoor air-flow as covered in Section 3.13.2.3. They have constant torque ECM motors with 5 blower motor speed taps, labeled T1 through T5. Speed selections are made on the low voltage terminal block located on the motor housing. Speed tap T1 is always dedicated to continuous fan operation and delivers approximately 50% of the speed tap T4 air-flow. From factory, Yellow (Y1) and Blue (Y2) leads are connected to the motor low voltage terminal block taps T4 & T5. Yellow and Blue leads on 1/2 tonnages (1.5T, 2.5T, 3.5T) units use taps T2 & T3. Reference table 3.13.3.3. Yellow and Blue leads on Full Tonnages (2, 3, 4, 5) units use taps T4 and T5. Reference table 3.13.3.3. 3.13.2.3 (-)H2T/(-)H1A MODELS (CONSTANT TORQUE ECM MOTOR) - SINGLE STAGE AIR-FLOW (-)H2T air-handlers may be matched to single stage outdoor units if properly configured. (-)H1A (constant torque) models are designed to be matched to single stage outdoor units only. When using a single speed outdoor unit, Y1 and Y2 thermostat wires must connect to the Y2 (Yellow/Blue) wire on the air handler. For 1/2 tonnage outdoor units (1.5T, 2.5T and 3.5T) the blue wire from the control board should be connected to either T2 or T3 on the motor low voltage terminal block. For full tonnage outdoor units (2.0T, 3.0T, 4.0T and 5.0T) the blue wire from the control board should be connected to either T4 or T5 on the motor low voltage terminal block. Select the speed tap based on the general air-flow operating limits table 3.13.1 and static of the application. Note: (-)H1AY4821ST models contain a PSC motor as covered in Section 3.13.2.1.
44

3.13.3 AIR-FLOW PERFORMANCE DATA

3.13.3.1 240V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR)

Model Number (-)H1PY

Motor
Speed From Factory

Manufacturer Recommended Air-flow Range (Min
Max) CFM

/

Blower Size/ Motor HP [W]
# of Speeds

Motor Speed

1817S No heater

High

517/711 CFM [244/336 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

1817S

with

High

13kw heater

487/661 CFM [230/312 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

2417S No heater

High

647/888 CFM [305/419 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

2417S

with

High

13kw heater

617/838 CFM [291/395 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

3017S No heater

High

864/1004 CFM [408/474 L/s]

Low
10x8 1/4 HP [186]
2 Speed
High

3017S

with

High

18kw heater

814/904 CFM [384/427 L/s]

Low
10x8 1/4 HP [186]
2 Speed
High

3617S/3621S No heater

High

1110/1248 CFM [524/589 L/s]

Low
10x8 1/3 HP [249]
2 Speed
High

CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts

PSC CFM[Us] Air Delivery/RPMNVatts (Dry Coil -- No Filter)

External Static Pressure-Inches W.C.

0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.2]

723

661

625

582

545

482

425

345

585

630

681

738

786

838

880

940

182

179

176

172

167

161

155

145

880

837

807

761

712

659

596

524

664

711

756

797

845

881

920

956

255

248

244

236

231

220

213

200

693

631

595

552

515

452

395

315

615

660

711

768

816

868

910

970

173

170

167

163

158

152

146

136

830

787

757

711

662

609

546

474

689

736

781

822

870

906

945

981

244

237

233

225

220

209

202

189

850

825

795

765

718

665

619

569

649

704

759

802

841

883

919

961

300

289

283

274

261

247

236

222

1069

1058

1011

982

938

887

832

761

782

832

861

889

929

956

983

1012

416

412

398

379

366

349

329

313

820

795

765

735

688

635

589

539

679

734

789

832

871

913

949

991

291

280

274

265

252

238

227

213

1019

1008

961

932

888

837

782

711

807

857

886

914

954

981

1008

1037

405

401

387

368

355

338

318

302

1148

1104

1055

1001

943

884

815

710

732

771

803

839

874

905

934

971

375

368

356

346

332

321

307

289

1402

1349

1297

1231

1175

1109

1038

953

862

885

908

929

951

976

1000

1018

541

527

514

495

480

466

449

428

1118

1054

1005

951

893

834

765

660

782

821

853

889

924

955

984

1021

355

348

336

326

312

301

287

269

1302

1249

1197

1131

1075

1009

938

853

887

910

933

954

976

1001

1025

1043

511

497

484

465

450

436

419

398

1340

1315

1275

1235

1185

1120

1054

980

796

836

870

904

932

963

990

1014

475

457

442

426

410

394

374

353

1576

1520

1474

1421

1361

1301

1216

1129

908

929

954

975

995

1016

1036

1056

603

572

548

526

505

485

460

434

0.9 [.22] 198 1006 129 417 1000 187 168 1036 120 367 1025 176 486 996 207 696 1032 295 456 1026 198 646 1057 284 538 1024 259 811 1038 397 488 1074 239 711 1063 367 857 1044 329 1024 1074 407

1 [.25] -- -- -- 221
1062 163 -- -- -- 171 1087 152 354 1044 178 565 1063 263 324 1074 169 515 1088 252 402 1016 239 545 1082 345 352 1066 219 445 1107 315 743 1071 302 869 1094 375

NOTE: (-) indicate air-flow values outside unit static range. Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

45

3.13.3.1 240V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR) - continued

Model Number (-)H1PY

Motor
Speed From Factory

Manufacturer Recommended Air-flow Range (Min
Max) CFM

/

Blower Size/ Motor HP [W]
# of Speeds

Motor Speed

3617S/3621S

with

High

18kw heater

1060/1148 CFM [500/542 L/s]

Low
10x8 1/3 HP [249]
2 Speed
High

4221S No heater

High

1241/1537 CFM [586/725 L/s]

Low
10x10 1/2 HP [373]
2 Speed
High

4221S

with

High

20kw heater

1225/1500 CFM [553/678 L/s]

Low
10x10 1/2 HP [373]
2 Speed
High

4821S/4824S No heater

High

1395/1824 CFM [658/861 L/s]

Low
10x10 3/4 HP [559]
2 Speed
High

4821S/4824S

with

High

25kw heater

1225/1500 CFM [625/814 L/s]

Low
10x10 3/4 HP [559]
2 Speed
High

6024S No heater

High

1710/1967 CFM [807/928 L/s]

Low
11x11 3/4HP[559]
2 Speed
High

6024S

with

High

30kw heater

1640/1796 CFM [773/847 L/s]

Low
11x11 3/4HP[559]
2 Speed
High

CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts

PSC CFM[Us] Air Delivery/RPMNVatts (Dry Coil -- No Filter)

External Static Pressure-Inches W.C.

0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.2]

1290

1265

1225

1185

1135

1070

1004

930

846

886

920

954

982

1013

1040

1064

455

437

422

406

390

374

354

333

1476

1420

1374

1321

1261

1201

1116

1029

933

954

979

1000

1020

1041

1061

1081

573

542

518

496

475

455

430

404

1645

1585

1528

1456

1372

1297

1185

952

861

887

913

943

970

991

1015

1056

551

525

503

477

449

425

400

323

2032

1930

1842

1763

1670

1561

1441

1330

1023

1029

1040

1049

1060

1071

1082

1092

827

788.2

760

738.9

702

675

647

621

1575

1515

1458

1386

1302

1227

1115

882

911

937

963

993

1020

1041

1065

1106

531

505

483

457

429

405

380

303

1932

1830

1742

1663

1570

1461

1341

1230

1048

1054

1065

1074

1085

1096

1107

1117

797

758

730

709

672

645

617

591

1489

1494

1484

1462

1435

1396

1356

1297

630

684

733

777

813

850

886

920

619

614

606

595

587

577

566

554

2247

2217

2186

2139

2077

2019

1952

1872

882

914

948

966

986

1005

1021

1038

1059

1007

966

936

905

878

854

829

1419

1424

1414

1392

1365

1326

1286

1227

650

704

753

797

833

870

906

940

599

594

586

575

567

557

546

534

2147

2117

2086

2039

1977

1919

1852

1772

902

934

968

986

1006

1025

1041

1058

1009

957

916

886

855

828

804

779

1948

1913

1877

1831

1782

1723

1657

1595

811

842

867

898

923

947

970

985

757

745

734

715

699

682

660

646

2174

2134

2084

2037

1976

1906

1831

1754

894

918

939

958

978

999

1014

1031

902

884.3

866

844.9

824

797

773

746

1878

1843

1807

1761

1712

1653

1587

1525

861

892

917

948

973

997

1020

1035

727

715

704

685

669

652

630

616

2074

2034

1984

1937

1876

1806

1731

1654

944

968

989

1008

1028

1049

1064

1081

872

854.3

836

814.9

794

767

743

716

0.9 [.22] 807 1094 309 924 1099 377 774 1080 316 1161 1105 587 704 1130 296 1061 1130 557 1229 955 534 1778 1052 797 1159 975 514 1678 1072 747 1512 1004 618 1665 1044 719 1442 1054 588 1565 1094 689

1 [.25] 693 1121 282 769 1119 345 598 1098 288 830 1125 530 528 1148 268 730 1150 500 1128 988 514 1674 1067 766 1058 1008 494 1574 1087 716 1409 1024 592 1586 1055 701 1339 1074 562 1486 1105 671.3

NOTE: (-) indicate air-flow values outside unit static range. Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

46

3.13.3.2 115/208/480V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR)

Model Number (-)H1PY

Motor
Speed From Factory

Manufacturer Recommended Air-flow Range (Min
Max) CFM

/

Blower Size/ Motor HP [W]
# of Speeds

Motor Speed

1817S No heater

High

517/711 CFM [244/336 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

1817S

with

High

13kw heater

487/661 CFM [230/312 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

2417S No heater

High

647/888 CFM [305/419 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

2417S

with

High

13kw heater

617/838 CFM [291/395 L/s]

Low
10x6 1/5 HP [149]
2 Speed
High

3017S No heater

High

864/1004 CFM [408/474 L/s]

Low
10x8 1/4 HP [186]
2 Speed
High

3017S

with

High

18kw heater

814/904 CFM [384/427 L/s]

Low
10x8 1/4 HP [186]
2 Speed
High

3617S/3621S No heater

High

1110/1248 CFM [524/589 L/s]

Low
10x8 1/3 HP [249]
2 Speed
High

CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts CFM RPM Watts

PSC CFM[Us] Air Delivery/RPMNVatts (Dry Coil -- No Filter)

External Static Pressure-Inches W.C.

0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.2]

723

661

625

582

545

482

425

345

585

630

681

738

786

838

880

940

182

179

176

172

167

161

155

145

880

837

807

761

712

659

596

524

664

711

756

797

845

881

920

956

255

248

244

236

231

220

213

200

693

631

595

552

515

452

395

315

615

660

711

768

816

868

910

970

173

170

167

163

158

152

146

136

830

787

757

711

662

609

546

474

689

736

781

822

870

906

945

981

244

237

233

225

220

209

202

189

850

825

795

765

718

665

619

569

649

704

759

802

841

883

919

961

300

289

283

274

261

247

236

222

1069

1058

1011

982

938

887

832

761

782

832

861

889

929

956

983

1012

416

412

398

379

366

349

329

313

820

795

765

735

688

635

589

539

679

734

789

832

871

913

949

991

291

280

274

265

252

238

227

213

1019

1008

961

932

888

837

782

711

807

857

886

914

954

981

1008

1037

405

401

387

368

355

338

318

302

1148

1104

1055

1001

943

884

815

710

732

771

803

839

874

905

934

971

375

368

356

346

332

321

307

289

1402

1349

1297

1231

1175

1109

1038

953

862

885

908

929

951

976

1000

1018

541

527

514

495

480

466

449

428

1148

1054

1005

951

893

834

765

660

782

821

853

889

924

955

984

1021

355

348

336

326

312

301

287

269

1302

1249

1197

1131

1075

1009

938

853

887

910

933

954

976

1001

1025

1043

511

497

484

465

450

436

419

398

1340

1315

1275

1235

1185

1120

1054

980

796

836

870

904

932

963

990

1014

475

457

442

426

410

394

374

353

1576

1520

1474

1421

1361

1301

1216

1129

908

929

954

975

995

1016

1036

1056

603

572

548

526

505

485

460

434

0.9 [.22] 198 1006 129 417 1000 187 168 1036 120 367 1025 176 486 996 207 696 1032 295 456 1026 198 646 1057 284 538 1024 259 811 1038 397 488 1074 239 711 1063 367 857 1044 329 1024 1074 407

1 [.25] -- -- -- 221
1062 163 -- -- -- 171 1087 152 354 1044 178 565 1063 263 324 1074 169 515 1088 252 402 1016 239 545 1082 345 352 1066 219 445 1107 315 743 1071 302 869 1094 375

NOTE: (-) indicate air-flow values outside unit static range. Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

47

3.13.3.2 115/208/480V AIR-FLOW PERFORMANCE DATA: (-)H1P (PSC MOTOR) - continued

Model Number (-)H1PY

Motor
Speed From Factory

Manufacturer Recommended Air-flow Range (Min
Max) CFM

/

Blower Size/ Motor HP [W]
# of Speeds

Motor Speed

CFM

3617S/3621S

with

High

18kw heater

4221S No heater

High

1060/1148 CFM [500/542 L/s]
1241/1537 CFM [586/725 L/s]

Low RPM

10x8 1/3 HP [249]
2 Speed

Watts CFM

High RPM

Watts

CFM

Low RPM

10x10 1/2 HP [373]
2 Speed

Watts CFM

High RPM

Watts

4221S

with

High

20kw heater

4821S/4824S No heater

High

1225/1500 CFM [553/678 L/s]
1395/1824 CFM [658/861 L/s]

CFM

Low RPM

10x10 1/2 HP [373]
2 Speed

Watts CFM

High RPM

Watts

CFM

Low RPM

10x10 3/4 HP [559]
2 Speed

Watts CFM

High RPM

Watts CFM

4821S/4824S

with

High

25kw heater

1225/1500 CFM [625/814 L/s]

Low RPM

10x10 3/4 HP [559]
2 Speed

Watts CFM

High RPM

6024S No heater

High

1710/1967 CFM [807/928 L/s]

11x11 3/4HP[559]
2 Speed

Watts CFM Low RPM Watts CFM High RPM Watts

6024S

with

High

30kw heater

1640/1796 CFM [773/847 L/s]

11x11 3/4HP[559]
2 Speed

CFM Low RPM
Watts CFM High RPM Watts

PSC CFM[Us] Air Delivery/RPMNVatts (Dry Coil -- No Filter)

External Static Pressure-Inches W.C.

0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.2]

1290

1265

1225

1185

1135

1070

1004

930

846

886

920

954

982

1013

1040

1064

455

437

422

406

390

374

354

333

1476

1420

1374

1321

1261

1201

1116

1029

933

954

979

1000

1020

1041

1061

1081

573

542

518

496

475

455

430

404

1645

1585

1528

1456

1372

1297

1185

952

861

887

913

943

970

991

1015

1056

551

525

503

477

449

425

400

323

2032

1930

1842

1763

1670

1561

1441

1330

1023

1029

1040

1049

1060

1071

1082

1092

827

788.2

760

738.9

702

675

647

621

1575

1515

1458

1386

1302

1227

1115

882

911

937

963

993

1020

1041

1065

1106

531

505

483

457

429

405

380

303

1932

1830

1742

1663

1570

1461

1341

1230

1048

1054

1065

1074

1085

1096

1107

1117

797

758

730

709

672

645

617

591

1489

1494

1484

1462

1435

1396

1356

1297

630

684

733

777

813

850

886

920

619

614

606

595

587

577

566

554

2247

2217

2186

2139

2077

2019

1952

1872

882

914

948

966

986

1005

1021

1038

1059

1007

966

936

905

878

854

829

1419

1424

1414

1392

1365

1326

1286

1227

650

704

753

797

833

870

906

940

599

594

586

575

567

557

546

534

2147

2117

2086

2039

1977

1919

1852

1772

902

934

968

986

1006

1025

1041

1058

1009

957

916

886

855

828

804

779

1948

1913

1877

1831

1782

1723

1657

1595

811

842

867

898

923

947

970

985

757

745

734

715

699

682

660

646

2174

2134

2084

2037

1976

1906

1831

1754

894

918

939

958

978

999

1014

1031

902

884.3

866

844.9

824

797

773

746

1878

1843

1807

1761

1712

1653

1587

1525

861

892

917

948

973

997

1020

1035

727

715

704

685

669

652

630

616

2074

2034

1984

1937

1876

1806

1731

1654

944

968

989

1008

1028

1049

1064

1081

872

854.3

836

814.9

794

767

743

716

0.9 [.22] 807 1094 309 924 1099 377 774 1080 316 1161 1105 587 704 1130 296 1061 1130 557 1229 955 534 1778 1052 797 1159 975 514 1678 1072 747 1512 1004 618 1665 1044 719 1442 1054 588 1565 1094 689

1 [.25] 693 1121 282 769 1119 345 598 1098 288 830 1125 530 528 1148 268 730 1150 500 1128 988 514 1674 1067 766 1058 1008 494 1574 1087 716 1409 1024 592 1586 1055 701 1339 1074 562 1486 1105 671.3

NOTE: (-) indicate air-flow values outside unit static range. Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

48

3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR)

Model No. (-)H2TY

Tonnage Application

Motor Speed From Factory

2417ST No Heater

1.5 Ton

4/5

2417ST with Heater

1.5 Ton

4/5

2417ST No Heater

2 Ton

4/5

2417ST with Heater

2 Ton

4/5

3617ST No Heater

2.5 Ton

4/5

3617ST with Heater

2.5 Ton

4/5

3617ST No Heater

3 Ton

4/5

Blower Size/ Motor HP [W]
# of Speed
10x8 1/3 HP [373]
5 Speed
10x8 1/3 HP [373]
5 Speed
10x8 1/3 HP [373]
5 Speed
10x8 1/3 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

CFM 835 664 501 434 362 294 273 243 217 194

2

RPM 570 581 617 687 746 814 846 894 934 998

Watts 89

70

59

66

72

78

78

82

86

90

CFM 852 790 740 695 649 589 545 489 441 383

3

RPM 586 634 686 740 791 851 899 951 990 1049

Watts 94

98

105 113 121 129 136 144 149 159

CFM 810 644 486 421 352 285 265 236 210 188

2

RPM 599 610 648 721 783 854 889 939 981 1048

Watts 96

77

65

71

78

85

85

89

93

98

CFM 878 814 763 715 629 572 528 474 428 372

3

RPM 558 604 654 705 830 894 944 998 1040 1101

Watts 86

90

96

104 132 141 148 157 163 174

CFM 829 662 555 482 430 363 303 260 202 181

4

RPM 573 584 635 705 757 814 876 925 990 1027

Watts 88

70

68

75

80

86

93

98

105 109

CFM 974 927 882 838 799 761 710 660 611 563

5

RPM 643 689 737 784 833 882 931 979 1023 1067

Watts 127 135 143 151 159 168 176 185 192 200

CFM 805 642 538 467 417 352 294 252 196 175

4

RPM 602 613 666 741 795 855 920 971 1039 1079

Watts 96

76

74

82

87

94

101 107 115

119

CFM 970 955 907 850 775 736 701 650 609 566

5

RPM 618 659 709 751 871 919 966 1024 1066 1110

Watts 113 120 127 135 178 187 197 207 217 225

CFM 857 721 665 594 539 473 401 342 318 284

2

RPM 586 596 648 712 768 827 895 950 989 1056

Watts 91

77

83

91

106 114

112 119 122 127

CFM 1122 1079 1036 990 943 902 859 814 771 723

3

RPM 710 750 784 817 859 899 883 735 744 720

Watts 173 181 188 195 204 212 221 230 240 249

CFM 831 700 645 576 523 459 389 332 308 276

2

RPM 615 625 680 748 807 869 940 998 1038 1108

Watts 99

84

90

99

116 124 121 130 133 138

CFM 1157 1112 1068 1020 914 875 833 790 748 701

3

RPM 508 546 731 662 902 944 966 1003 1045 1082

Watts 159 166 172 179 222 231 241 251 261 271

CFM 855 762 705 655 597 536 470 404 353 315

4

RPM 588 617 662 716 777 831 875 953 937 973

Watts 103

87

93

100 116 115 123 130 136 141

CFM 1259 1213 1168 1132 1094 1056 1016 974 937 901

5

RPM 771 813 846 824 824 669 723 265 123 100

Watts 234 245 253 261 270 280 287 299 308 317

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

49

3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H2TY

Tonnage Application

Motor Speed From Factory

Blower Size/ Motor HP [W]
# of Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

3617ST with Heater

3 Ton

4/5

3621ST No Heater

2.5 Ton

4/5

3621ST with Heater

2.5 Ton

4/5

3621ST No Heater

3 Ton

4/5

3621ST with Heater

3 Ton

4/5

4821ST***N No Heater

3.5 Ton

4/5

4821ST***N with Heater

3.5 Ton

4/5

10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed

CFM 829 739 683 635 579 520 456 392 342 306

4

RPM 618 647 696 752 816 872 919 1000 984 1021

Watts 112

95

101 109 126 125 133 141 148 154

CFM 1298 1251 1204 1167 1061 1024 986 945 909 874

5

RPM 112

81

133 119 940 973 1001 1040 1072 1102

Watts 214 224 232 239 294 305 313 326 336 345

CFM 987 793 662 611 549 489 417 371 331 296

2

RPM 591 598 640 700 755 817 882 929 970 1036

Watts 97

74

66

75

80

89

95

99

110 114

CFM 1148 1091 1049 993 941 898 852 809 755 712

3

RPM 639 690 729 772 821 864 910 955 1006 1042

Watts 139 145 153 162 171 179 188 196 207 216

CFM 957 763 632 581 519 459 395 351 316 285

2

RPM 616 623 665 725 780 842 914 966 1009 1072

Watts 92

69

61

70

75

84

90

93

103 108

CFM 1193 1129 1089 1035 911 868 822 779 725 682

3

RPM 621 674 710 753 846 889 935 980 1031 1067

Watts 142 149 157 166 166 174 183 191 202 211

CFM 983 808 723 706 654 580 529 466 411 358

4

RPM 593 600 623 641 695 770 820 880 934 986

Watts 96

75

71

72

79

87

92

105 106 115

CFM 1253 1218 1174 1139 1099 1058 1017 975 937 905

5

RPM 708 740 779 814 859 895 939 983 1020 1054

Watts 187 194 203 212 223 231 241 251 263 276

CFM 953 778 676 624 550 499 449 402 356 310

4

RPM 620 625 648 666 720 795 850 917 975 1028

Watts 91

70

67

74

82

87

87

101 106 114

CFM 1291 1256 1213 1176 1069 1028 987 945 907 875

5

RPM 689 722 758 792 884 920 964 1008 1045 1079

Watts 190 198 207 216 218 226 236 246 258 271

CFM 892 817 737 632 564 487 429 381 338 294

2

RPM 611 660 718 817 864 910 976 1037 1092 1153

Watts 81

89

96

108 114 120 128 139 147 159

CFM 1552 1492 1447 1403 1336 1290 1240 1198 1147 1085

3

RPM 831 878 918 957 1006 1048 1084 1121 1170 1235

Watts 290 303 315 327 341 356 367 379 396 421

CFM 892 817 737 632 564 487 403 342 287 264

2

RPM 611 660 718 817 864 910 1014 1080 1139 1200

Watts 81

89

96

108 114 120 132 144 147 152

CFM 1604 1542 1496 1450 1336 1290 1240 1198 1147 1085

3

RPM 810 854 893 933 1006 1048 1084 1121 1170 1235

Watts 296 308 321 334 341 356 367 379 396 421

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

50

3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H2TY

Tonnage Application

Motor Speed From Factory

Blower Size/ Motor HP [W]
# of Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

4821ST***N No Heater

4 Ton

4/5

4821ST***N with Heater

4 Ton

4/5

4824ST No Heater

3.5 Ton

4/5

4824ST with Heater

3.5 Ton

4/5

4824ST No Heater

4 Ton

4/5

4824ST with Heater

4 Ton

4/5

4824MT

3.5 Ton

4/5

No Heater

10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
10x10 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed

CFM 1106 1032 973 901 819 712 628 556 494 430

4

RPM 698 727 770 821 893 972 1042 1108 1167 1232

Watts 129 134 142 150 163 178 190 206 218 236

CFM 1720 1654 1604 1555 1472 1430 1392 1349 1308 1272

5

RPM 876 925 967 1008 1068 1104 1134 1171 1205 1243

Watts 362 378 393 409 430 445 457 473 487 504

CFM 1106 1032 973 901 819 712 590 500 436 415

4

RPM 698 727 770 821 893 972 1083 1156 1212 1277

Watts 129 134 142 150 163 178 197 213 220 240

CFM 1771 1704 1660 1606 1472 1430 1392 1349 1308 1272

5

RPM 854 903 942 984 1068 1104 1134 1171 1205 1243

Watts 370 386 402 417 430 445 457 473 487 504

CFM 964 882 809 676 581 464 395 344 215 190

2

RPM 445 501 552 610 651 698 729 762 800 884

Watts 79

88

96

104 111

113

117 122 128 135

CFM 1586 1525 1479 1434 1372 1312 1257 1201 1126 1035

3

RPM 621 661 699 730 765 803 837 875 910 948

Watts 242 256 269 279 292 305 317 330 342 354

CFM 934 852 779 646 551 434 382 331 207 181

2

RPM 470 526 577 635 676 723 758 798 831 929

Watts 74

83

91

99

106 108 112 116 122 127

CFM 1625 1565 1517 1471 1342 1282 1227 1171 1096 1005

3

RPM 604 643 679 711 790 828 862 900 935 973

Watts 246 260 273 284 287 300 312 325 337 349

CFM 1152 1080 1004 926 837 734 662 581 518 463

4

RPM 493 539 587 636 687 726 768 801 845 872

Watts 113 122 131 141 151 159 165 175 182 188

CFM 1725 1675 1621 1563 1507 1459 1412 1360 1308 1241

5

RPM 658 692 728 764 798 833 861 894 922 960

Watts 298 310 325 338 350 364 378 389 400 415

CFM 1122 1050 974 896 807 704 641 565 505 450

4

RPM 518 564 612 661 712 751 803 842 878 906

Watts 108 117 126 136 146 154 159 167 176 181

CFM 1767 1713 1655 1598 1477 1429 1382 1330 1278 1211

5

RPM 639 672 709 743 823 858 886 919 947 985

Watts 302 315 329 342 345 359 373 384 395 410

CFM 1288 1068 739 513 426 352 294 189 187 186

2

RPM 549 549 549 595 635 681 711 757 759 760

Watts 134 110

78

73

78

83

86

88

91

91

CFM 1618 1560 1504 1455 1410 1350 1290 1232 1184 1092

3

RPM 651 688 723 755 785 819 856 895 914 964

Watts 239 251 261 273 283 294 306 318 327 342

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

51

3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H2TY

Tonnage Application

Motor Speed From Factory

4824MT

3.5 Ton

4/5

with Heater

4824MT

4 Ton

4/5

No Heater

4824MT

4 Ton

4/5

with Heater

6024ST No Heater

4.5 Ton

4/5

6024ST with Heater

4.5 Ton

4/5

6024ST No Heater

5 Ton

4/5

6024ST with Heater

5 Ton

4/5

Blower Size/ Motor HP [W]
# of Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

CFM 795 701 597 472 416 331 223 185 187 186

2

RPM 437 492 551 607 630 684 740 749 750 749

Watts 55

61

68

74

76

83

90

91

91

91

CFM 1541 1487 1433 1383 1328 1285 1234 1184 1118 1054

3

RPM 699 728 760 792 824 856 883 911 949 978

Watts 251 260 270 281 290 305 314 323 336 344

CFM 1294 1069 985 917 833 728 653 574 521 465

4

RPM 549 550 594 637 684 731 768 809 836 871

Watts 137 110 117 125 134 142 149 156 161 167

CFM 1714 1664 1613 1562 1510 1453 1403 1349 1285 1233

5

RPM 683 716 750 783 814 843 875 906 934 967

Watts 280 292 304 316 327 338 348 360 372 382

CFM 1088 1015 944 872 790 717 637 571 508 460

4

RPM 534 576 619 657 705 742 776 808 837 870

Watts 107 114 122 129 137 145 151 157 161 167

CFM 1650 1595 1547 1495 1446 1394 1347 1297 1244 1188

5

RPM 737 766 794 825 852 881 908 937 965 999

Watts 300 310 320 331 341 352 362 372 383 396

CFM 1321 1127 914 512 398 321 342 367 389 411

2

RPM 567 573 579 588 629 667 705 801 810 875

Watts 164 138 115

78

81

86

83

79

76

74

CFM 1710 1659 1613 1563 1511 1467 1414 1356 1301 1243

3

RPM 698 729 761 791 822 850 879 906 937 968

Watts 324 338 351 363 375 386 397 405 418 431

CFM 1281 1093 886 497 386 311 332 356 378 399

2

RPM 595 602 608 618 660 700 740 841 851 919

Watts 179 150 126

85

88

93

90

86

83

80

CFM 1762 1710 1662 1612 1466 1423 1372 1315 1262 1205

3

RPM 665 694 724 753 864 893 923 951 984 1016

Watts 297 310 322 333 408 420 432 442 456 470

CFM 1367 1193 1097 1032 957 869 791 719 644 580

4

RPM 583 588 622 661 700 746 790 824 856 888

Watts 176 154 156 165 174 184 194 199 207 215

CFM 2065 2015 1966 1922 1877 1837 1797 1754 1707 1673

5

RPM 808 836 866 891 924 946 967 995 1018 1045

Watts 541 554 572 587 602 614 628 643 656 673

CFM 1326 1157 1064 1001 928 843 767 697 624 562

4

RPM 612 618 653 694 735 783 830 866 899 933

Watts 192 167 170 180 190 200 211 217 226 235

CFM 2128 2077 2027 1982 1821 1781 1743 1701 1656 1623

5

RPM 769 796 825 849 970 994 1016 1045 1069 1097

Watts 496 508 525 538 656 670 684 701 714 734

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

52

3.13.3.3 115/208/240/480V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H2TY

Tonnage Application

Motor Speed From Factory

6021ST No Heater

4.5 Ton

4/5

6021ST with Heater

4.5 Ton

4/5

6021ST No Heater

5 Ton

4/5

6021ST with Heater

5 Ton

4/5

Blower Size/ Motor HP [W]
# of Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

CFM 1120 1061 997 875 819 777 719 678 621 561

2

RPM 657 710 773 859 892 917 953 981 1021 1057

Watts 133 143 154 170 176 180 187 191 201 208

CFM 1683 1640 1602 1563 1515 1464 1416 1363 1295 1248

3

RPM 901 939 969 998 1047 1089 1134 1175 1228 1259

Watts 386 399 411 421 439 454 471 486 507 519

CFM 1080 1021 957 835 779 737 688 653 593 539

2

RPM 682 735 798 884 917 942 985 1017 1051 1097

Watts 128 138 149 165 171 175 182 185 194 201

CFM 1735 1686 1652 1613 1475 1424 1376 1323 1255 1208

3

RPM 883 920 949 976 1072 1114 1159 1200 1253 1284

Watts 390 403 416 425 434 449 466 481 502 514

CFM 1223 1171 1113 1057 967 892 853 804 749 704

4

RPM 702 750 807 859 927 966 990 1017 1053 1083

Watts 167 178 190 201 216 224 229 235 244 251

CFM 2038 1999 1968 1934 1896 1861 1829 1790 1730 1568

5

RPM 1071 1100 1124 1150 1180 1210 1240 1277 1301 1302

Watts 666 682 697 711 727 742 759 780 771 683

CFM 1183 1131 1073 1017 927 852 824 776 722 680

4

RPM 727 775 832 884 952 991 1021 1052 1085 1117

Watts 162 173 185 196 211 219 223 228 238 244

CFM 2090 2043 2016 1980 1856 1821 1789 1750 1690 1528

5

RPM 1050 1079 1102 1128 1205 1235 1265 1302 1326 1327

Watts 670 687 701 716 722 737 754 775 766 678

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

53

3.13.3.4 115/208/240V AIR-FLOW PERFORMANCE DATA: (-)H1A (PSC MOTOR)

Model No. (-)H1AY

Motor Speed From Factory

Manufacturer Recommended Air-flow Range (Min / Max)
CFM

Blower Size/ Motor HP [W]
# of Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

4821ST No Heater

High

1395/1824 CFM [658/861 Ls]

4821ST with Heater

High

1225/1500 CFM [625/814 Ls]

10x10 3/4 HP [559]
2 Speed
10x10 3/4 HP [559]
2 Speed

CFM 1489 1494 1484 1462 1435 1396 1356 1297 1229 1128

Low

RPM 630 684 733 777 813 850 886 920 955 988

Watts 619 614 606 595 587 577 566 554 534 514

CFM 2247 2217 2186 2139 2077 2019 1952 1872 1778 1674

High RPM 882 914 948 966 986 1005 1021 1038 1052 1067

Watts 1059 1007 966 936 905 878 854 829 797 766

CFM 1419 1424 1414 1392 1365 1326 1286 1227 1159 1058

Low

RPM 650 704 753 797 833 870 906 940 975 1008

Watts 599 594 586 575 567 557 546 534 514 494

CFM 2147 2117 2086 2039 1977 1919 1852 1772 1678 1574

High RPM 902 934 968 986 1006 1025 1041 1058 1072 1087

Watts 1009 957 916 886 855 828 804 779 747 716

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

54

3.13.3.5 115/208/240V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR)

Model No. (-)H1AY

Motor Speed From Factory

Manufacturer Recommended Air-flow Range (Min / Max) CFM

Blower Size/ Motor HP [W]
# of Speed

2417ST No Heater

1.5 Ton

4/5

10x8 1/3 HP [373]
5 Speed

2417ST with Heater

1.5 Ton

4/5

10x8 1/3 HP [373]
5 Speed

2417ST No Heater

2 Ton

4/5

10x8 1/3 HP [373]
5 Speed

2417ST with Heater

2 Ton

4/5

10x8 1/3 HP [373]
5 Speed

3617ST No Heater

2.5 Ton

4/5

10x10 1/2 HP [373]
5 Speed

3617ST with Heater

2.5 Ton

4/5

10x10 1/2 HP [373]
5 Speed

3617ST No Heater

3 Ton

4/5

10x10 1/2 HP [373]
5 Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

CFM 835 664 501 434 362 294 273 243 217 194

2

RPM 570 581 617 687 746 814 846 894 934 998

Watts 89

70

59

66

72

78

78

82

86

90

CFM 852 790 740 695 649 589 545 489 441 383

3

RPM 586 634 686 740 791 851 899 951 990 1049

Watts 94

98

105 113 121 129 136 144 149 159

CFM 810 644 486 421 352 285 265 236 210 188

2

RPM 599 610 648 721 783 854 889 939 981 1048

Watts 96

77

65

71

78

85

85

89

93

98

CFM 878 814 763 715 629 572 528 474 428 372

3

RPM 558 604 654 705 830 894 944 998 1040 1101

Watts 86

90

96

104 132 141 148 157 163 174

CFM 829 662 555 482 430 363 303 260 202 181

4

RPM 573 584 635 705 757 814 876 925 990 1027

Watts 88

70

68

75

80

86

93

98

105 109

CFM 974 927 882 838 799 761 710 660 611 563

5

RPM 643 689 737 784 833 882 931 979 1023 1067

Watts 127 135 143 151 159 168 176 185 192 200

CFM 805 642 538 467 417 352 294 252 196 175

4

RPM 602 613 666 741 795 855 920 971 1039 1079

Watts 96

76

74

82

87

94

101 107 115

119

CFM 970 955 907 850 775 736 701 650 609 566

5

RPM 618 659 709 751 871 919 966 1024 1066 1110

Watts 113 120 127 135 178 187 197 207 217 225

CFM 857 721 665 594 539 473 401 342 318 284

2

RPM 586 596 648 712 768 827 895 950 989 1056

Watts 91

77

83

91

106 114 112

119 122 127

CFM 1122 1079 1036 990 943 902 859 814 771 723

3

RPM 710 750 784 817 859 899 883 735 744 720

Watts 173 181 188 195 204 212 221 230 240 249

CFM 831 700 645 576 523 459 389 332 308 276

2

RPM 615 625 680 748 807 869 940 998 1038 1108

Watts 99

84

90

99

116 124 121 130 133 138

CFM 1157 1112 1068 1020 914 875 833 790 748 701

3

RPM 508 546 731 662 902 944 966 1003 1045 1082

Watts 159 166 172 179 222 231 241 251 261 271

CFM 855 762 705 655 597 536 470 404 353 315

4

RPM 588 617 662 716 777 831 875 953 937 973

Watts 103

87

93

100

116

115 123 130

136 141

CFM 1259 1213 1168 1132 1094 1056 1016 974 937 901

5

RPM 771 813 846 824 824 669 723 265 123 100

Watts 234 245 253 261 270 280 287 299 308 317

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

55

3.13.3.5 115/208/240V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H1AY

Motor Speed From Factory

Manufacturer Recommended Air-flow Range (Min / Max) CFM

Blower Size/ Motor HP [W]
# of Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

3617ST

3 Ton

4/5

with Heater

3621ST

2.5 Ton

4/5

No Heater

3621ST

2.5 Ton

4/5

with Heater

3621ST

3 Ton

4/5

No Heater

3621ST

3 Ton

4/5

with Heater

6021ST

4.5 Ton

4/5

No Heater

6021ST

4.5 Ton

4/5

with Heater

10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
10x10 1/2 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed

CFM 829 739 683 635 579 520 456 392 342 306

4

RPM 618 647 696 752 816 872 919 1000 984 1021

Watts 112

95

101 109 126 125 133 141 148 154

CFM 1298 1251 1204 1167 1061 1024 986 945 909 874

5

RPM 112

81

133 119 940 973 1001 1040 1072 1102

Watts 214 224 232 239 294 305 313 326 336 345

CFM 987 793 662 611 549 489 417 371 331 296

2

RPM 591 598 640 700 755 817 882 929 970 1036

Watts 97

74

66

75

80

89

95

99

110 114

CFM 1148 1091 1049 993 941 898 852 809 755 712

3

RPM 639 690 729 772 821 864 910 955 1006 1042

Watts 139 145 153 162 171 179 188 196 207 216

CFM 957 763 632 581 519 459 395 351 316 285

2

RPM 616 623 665 725 780 842 914 966 1009 1072

Watts 92

69

61

70

75

84

90

93

103 108

CFM 1193 1129 1089 1035 911 868 822 779 725 682

3

RPM 621 674 710 753 846 889 935 980 1031 1067

Watts 142 149 157 166 166 174 183 191 202 211

CFM 983 808 723 706 654 580 529 466 411 358

4

RPM 593 600 623 641 695 770 820 880 934 986

Watts 96

75

71

72

79

87

92

105 106 115

CFM 1253 1218 1174 1139 1099 1058 1017 975 937 905

5

RPM 708 740 779 814 859 895 939 983 1020 1054

Watts 187 194 203 212 223 231 241 251 263 276

CFM 953 778 676 624 550 499 449 402 356 310

4

RPM 620 625 648 666 720 795 850 917 975 1028

Watts 91

70

67

74

82

87

87

101 106 114

CFM 1291 1256 1213 1176 1069 1028 987 945 907 875

5

RPM 689 722 758 792 884 920 964 1008 1045 1079

Watts 190 198 207 216 218 226 236 246 258 271

CFM 1120 1061 997 875 819 777 719 678 621 561

2

RPM 657 710 773 859 892 917 953 981 1021 1057

Watts 133 143 154 170 176 180 187 191 201 208

CFM 1683 1640 1602 1563 1515 1464 1416 1363 1295 1248

3

RPM 901 939 969 998 1047 1089 1134 1175 1228 1259

Watts 386 399 411 421 439 454 471 486 507 519

CFM 1080 1021 957 835 779 737 688 653 593 539

2

RPM 682 735 798 884 917 942 985 1017 1051 1097

Watts 128 138 149 165 171 175 182 185 194 201

CFM 1735 1686 1652 1613 1475 1424 1376 1323 1255 1208

3

RPM 883 920 949 976 1072 1114 1159 1200 1253 1284

Watts 390 403 416 425 434 449 466 481 502 514

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

56

3.13.3.5 115/208/240V AIR-FLOW PERFORMANCE DATA: (CONSTANT TORQUE MOTOR) continued

Model No. (-)H1AY

Motor Speed From Factory

Manufacturer Recommended Air-flow Range (Min / Max) CFM

Blower Size/ Motor HP [W]
# of Speed

Motor Speed

CFM/RPM/WATTS - Dry Coil-No Filter External Static Presure Inches of W.C.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

6021ST

5 Ton

4/5

No Heater

6021ST

5 Ton

4/5

with Heater

6024ST

4.5 Ton

4/5

No Heater

6024ST

4.5 Ton

4/5

with Heater

6024ST

5 Ton

4/5

No Heater

6024ST

5 Ton

4/5

with Heater

11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed
11x11 3/4 HP [373]
5 Speed

CFM 1223 1171 1113 1057 967 892 853 804 749 704

4

RPM 702 750 807 859 927 966 990 1017 1053 1083

Watts 167 178 190 201 216 224 229 235 244 251

CFM 2038 1999 1968 1934 1896 1861 1829 1790 1730 1568

5

RPM 1071 1100 1124 1150 1180 1210 1240 1277 1301 1302

Watts 666 682 697 711 727 742 759 780 771 683

CFM 1183 1131 1073 1017 927 852 824 776 722 680

4

RPM 727 775 832 884 952 991 1021 1052 1085 1117

Watts 162 173 185 196 211 219 223 228 238 244

CFM 2090 2043 2016 1980 1856 1821 1789 1750 1690 1528

5

RPM 1050 1079 1102 1128 1205 1235 1265 1302 1326 1327

Watts 670 687 701 716 722 737 754 775 766 678

CFM 1321 1127 914 512 398 321 342 367 389 411

2

RPM 567 573 579 588 629 667 705 801 810 875

Watts 164 138 115

78

81

86

83

79

76

74

CFM 1710 1659 1613 1563 1511 1467 1414 1356 1301 1243

3

RPM 698 729 761 791 822 850 879 906 937 968

Watts 324 338 351 363 375 386 397 405 418 431

CFM 1281 1093 886 497 386 311 332 356 378 399

2

RPM 595 602 608 618 660 700 740 841 851 919

Watts 179 150 126

85

88

93

90

86

83

80

CFM 1762 1710 1662 1612 1466 1423 1372 1315 1262 1205

3

RPM 665 694 724 753 864 893 923 951 984 1016

Watts 297 310 322 333 408 420 432 442 456 470

CFM 1367 1193 1097 1032 957 869 791 719 644 580

4

RPM 583 588 622 661 700 746 790 824 856 888

Watts 176 154 156 165 174 184 194 199 207 215

CFM 2065 2015 1966 1922 1877 1837 1797 1754 1707 1673

5

RPM 808 836 866 891 924 946 967 995 1018 1045

Watts 541 554 572 587 602 614 628 643 656 673

CFM 1326 1157 1064 1001 928 843 767 697 624 562

4

RPM 612 618 653 694 735 783 830 866 899 933

Watts 192 167 170 180 190 200 211 217 226 235

CFM 2128 2077 2027 1982 1821 1781 1743 1701 1656 1623

5

RPM 769 796 825 849 970 994 1016 1045 1069 1097

Watts 496 508 525 538 656 670 684 701 714 734

NOTE: Some CFM values on the table are outside of the general air-flow operating limits and are for reference only.

57

4.0 START-UP
4.1 PRE-START CHECKLIST

PRE-START CHECKLIST

 YES  NO
 YES  NO
 YES  NO
 YES  NO

Is unit properly located, level, secure and serviceable?
Has auxiliary pan been provided under the unit with separate drain? (Units installed above a finished ceiling). Is condensate line properly sized, run, trapped, pitched and tested?
Is ductwork correctly sized, run, taped and insulated?

 YES  NO
 YES  NO

Have all cabinet openings and wiring been sealed with caulking?
Is the filter clean, in place and of adequate size?

 YES  NO
 YES  NO

Is the wiring tight, correct and to the wiring diagram? Is the unit properly grounded and protected (fused)?

 YES  NO

Is the thermostat heat anticipator been set properly?

 YES Is the unit circuit breaker(s) rotated properly on up - off  NO down?

 YES  NO
 YES  NO

Are the unit circuit breaker(s) line lug cover(s) in place?
Are all access panels in place and secure?

Refer to outdoor unit installation instructions for system start-up instructions and refrigerant charging instructions.

4.2 SYSTEM START-UP AND OPERATIONAL CHECK-OUT
After the air-handler and other system components have been installed and the Pre-Start Checklist has been completed, the system should be started up and an operational check-out should be performed. The operational check-out includes checking sequence of operation of the controls, air-flow, and refrigerant charge. If the controls are not found to be functioning properly, or the air-flow or refrigerant charge are not within specifications, corrective action must be taken. The following sections are provided to assist the installer with the operational check-out.
4.3 SEQUENCE OF OPERATION
4.3.1 COOLING MODE
When the thermostat calls for cooling, the G terminal on the blower control board is energized which in turn energizes the indoor blower motor. This causes the indoor blower to circulate air through the air-handler and duct system during the cooling cycle. For (-)H2T air-handlers, when the Y1 (1st stage) thermostat pigtail is energized by the thermostat, the indoor blower motor operates at the 1st stage cooling air-flow level. When the Y2 (2nd stage) thermostat pigtail is energized by a 2-stage thermostat, the air-flow increases to the 2nd stage of cooling air-flow. As the 2-stage thermostat alternates between the 1st and 2nd cooling stages, the indoor air-flow alternates between the 1st and 2nd stages of air-flow. When the thermostat call is satisfied or turned to the off position. The G and Y inputs from the thermostat are de-energized. A time delay programmed into the (-)H1P/(-)H1AY4821ST blower control board or (-)H2T/(-)H1A (constant torque) keeps the blower motor energized for an additional 30 seconds to extract the residual cooling from the cold indoor coil before it shuts down. If the thermostat is set for continuous fan operation, the motor continues to operate when the call for cooling ends. The air-flow on an (-)H2T/(-)H1A (constant torque) air-handler will be reduced to the continuous fan speed while the air-flow on a (-)H1P/(-)H1AY4821ST air-handler will remain constant.

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4.3.2 ELECTRIC HEAT MODE
When the thermostat calls for the 1st stage of heat, the W1 terminal on the blower control board is energized. This energizes the indoor blower motor and all of the electric heater elements for heater kits with 10kW of heat or less and the 1st stage elements for 13kW heater kits and higher. If W1 and W2 thermostat pigtails at the air-handler are wired together on 13kW heater kits and higher, all of the elements to be energized. For 13kW heater kits and higher, a 2-stage heat thermostat can be used to energize the W2 terminal on the blower control board upon a call for a 2nd stage of heat which will in turn will energize the 2nd stage heater elements. The heater kit will cycle between the 1st and 2nd stages of heat at the direction of the thermostat.
When the thermostat call for heat is satisfied or the thermostat is turned to the off position, the W1 terminal on the blower control board is de-energized which will de-energize the heating elements in a few seconds as the bimetallic disc in the sequencer cools. The blower motor will be de-energized 75 seconds after the call for heat ends.
4.3.3 HEAT PUMP HEATING MODE
When the heat pump thermostat is set to heat mode, the B terminal on the outdoor unit is energized which energizes the reversing valve and switches it to the heating position. When the thermostat calls for heat, the G terminal on the blower control board is energized which in turn energizes the indoor blower motor. This causes the indoor blower to circulate air through the air-handler and duct system during the heating cycle.
For (-)H2T air-handlers, when the Y1 (1st stage) thermostat pigtail is energized by the thermostat, the indoor blower motor operates at the 1st stage heating air-flow level. When the Y2 (2nd stage) thermostat pigtail is energized by a 2-stage thermostat, the air-flow increases to the 2nd stage of heating air-flow. The air-flow levels for both stages the heat pump heating are the same for the cooling mode. As the 2-stage thermostat alternates between the 1st and 2nd heat pump heating stages, the indoor air-flow alternates between the 1st and 2nd stages of air-flow.
Should the room temperature continue to fall when the system is operating in the heat pump heating mode, the thermostat energizes the W2 terminal on the blower control board which energizes the supplemental electric heat. For 13kW heater kits and larger, the W1 and W2 pigtails can be connected together for maximum supplemental heat for 2nd stage or wired to the W1 and W2 terminals on the thermostat separately to provide a 3rd stage of heat as needed.
When the thermostat call is satisfied. The G and Y terminals inputs from the thermostat are de-energized. A time delay programmed into the (-)H1P blower control board or (-)H2T motor keeps the blower motor energized for an additional 30 seconds to extract the residual heat from the warm indoor coil. If the thermostat is set for continuous fan operation, the motor continues to operate when the call for heating ends. The air-flow on an (-)H2T air-handler will be reduced to the continuous fan speed while the air-flow on a (-)H1P air-handler will remain constant.
4.3.4 SUPPLEMENTAL ELECTRIC HEAT DURING DEFROST
Supplemental electric heat during the defrost cycle can be provided by running a wire from the purple pigtail wire (from D terminal on defrost control) on the outdoor heat pump unit to the W1 pigtail on the air-handler. This will energize the electric heat during the defrost cycle to prevent cold air from being discharged from the supply registers in the home.
For the most economical operation and if cold discharge air is not a concern, do not run the wire from the purple pigtail on the outdoor unit to the W1 pigtail on the air-handler. In this case, supplemental heat will only be energized if the thermostat energizes the 2nd stage of heat during the defrost cycle due to a significant drop in room temperature.
4.3.5 EMERGENCY HEAT (HEAT PUMP)
If heat pump thermostat is set to the Emergency Heat mode, the outdoor unit will be prevented from operating and heat will be provided solely by the electric heater. The electric heater elements and indoor blower motor will be energized any time there is a call for heat with no compressor and outdoor fan operation. A jumper should be installed between the W1 and E terminals on the thermostat sub-base so a call for emergency heat will be transferred to the 1st stage of heat of the thermostat. The indoor blower will cycle on and off with the electric heater elements when the thermostat fan setting is set to the auto mode, although there will be a 75 second delay off period for the blower motor after the call for heat ends.
4.3.6 THERMOSTAT FAN SETTING
If the thermostat FAN setting is adjusted to the AUTO position, the indoor blower motor will only operate when there is a call for cooling or heating. If the setting is adjusted to the ON position, the indoor blower motor will operate continuously. On (-)H2T/(-)H1A (constant torque) models, the indoor blower motor will operate at a reduced speed when there is no call for cooling and heating to reduce power consumption and noise.
4.4 CORRECTING ELECTRIC HEAT kW FOR VOLTAGE
The actual electric heat kW varies with the supply voltage. Use the following formula to correct the heater rated kW at voltages other than rated voltage.
Actual kW = Rated kW x (Actual Voltage2 / Rated Voltage2).
4.5 CALCULATING ELECTRIC HEAT CAPACITY IN BTUH
Use the following formula to convert heater kW to heating capacity in BTUH.
BTUH Capacity = kW × 3412
(Where 3412 = BTUH per kW)
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4.6 CHECKING INDOOR AIR-FLOW
4.6.1 ESTIMATING CFM USING EXTERNAL STATIC PRESSURE
A common method of checking indoor is to measure the external static pressure that the air-handler is working against and then referring to the air-flow data in Section 3.13.3. Measuring external static pressure to a high degree of precision in the field is challenging, so keep in mind that the CFM determined by this method is an estimate, but is accurate enough for all practical purposes.
To determine external static pressure, the static pressure should be measured in inches of water column across the air-handler using an incline manometer, digital static pressure meter, or a Magnahelic. The static pressure inside the return plenum should be measured as close to the air-handler as possible and must be measured between any external filter rack and the unit so the pressure drop across the filter is accounted for. The static pressure inside the supply plenum should be measured at a point about halfway between the air-handler and the first elbow or the end of the plenum. Total external static pressure is the sum of the return and supply plenum static pressures. Even though the return plenum static pressure is a negative pressure, it must be added to the supply plenum static pressure, ignoring the negative sign. The supply and return plenum static pressure tubing can also be connected to both pressure ports of the pressure measuring device which will automatically add the two pressures together.
IMPORTANT:
When checking external static pressure in the cooling or heat pump heating mode on (-)H2T models that are matched to a 2-Stage outdoor unit, the thermostat set point must be adjusted so the system is operating in the 2nd stage mode to assure the air-handler is delivering 2nd stage air-flow.
4.6.2 ESTIMATING CFM USING ELECTRIC HEAT TEMPERATURE RISE
If the air-handler is equipped with an electric heater, the CFM can be estimated using the air temperature rise across the air-handler with the heater and blower both energized once the unit has run long enough for the temperatures to stabilize. As with determining CFM using external static pressure, the CFM determined by this method is an estimate, but is accurate enough for all practical purposes. Measure the return air temperature as close to the unit as possible and the supply air temperature about half way from the air-handler to the first elbow or end of the supply plenum. Use the following formula to calculate CFM once the temperature rise is determined.
CFM = Heating BTUH / (Elevation Factor × Temp Rise °F)
Note: Refer to Section 4.5 to determine Heating BTUH and the following chart for Elevation Factor.
4.7 CHECKING REFRIGERANT CHARGE
System refrigerant charging should only be performed after the indoor air-flow is confirmed to be correct for the application. Once the air-flow is confirmed, refer to the manufacturer's outdoor unit charging chart and installation manual for the proper charging procedure for the system.
Note: The charging method for systems with a fixed orifice (piston) will likely be different than systems with TXV's.

Elevation (Feet) Sea Level 500 1000 1500 2000 2500 3000 3500 4000 5000 6000 7000 8000 9000 10000

Elevation Factor 1.08 0.98 0.96 0.95 0.93 0.91 0.90 0.88 0.86 0.83 0.83 0.77 0.74 0.72 0.69

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5.0 COMPONENTS & C0NTROLS
5.1 BLOWER MOTOR
All (-)H1P and (-)H1AY4821ST models have 2-speed single-phase permanent split capacitor (PSC) style motors.
· The 208/240 volt models also have voltage taps that allow the motor to be configured to restore full air-flow performance in 208 volt applications.
· The low speed tap is for applications with duct system external static pressures up to 0.5 W.C. and the high speed tap is for applications with external static pressures from 0.5  0.7 W.C.
· A run capacitor is required for the PSC motors which is mounted on the blower housing. Speed and voltage change instructions are detailed in Section 3.13.2 of this manual.
All (-)H2T and (-)H1A models, except (-)H1AY4821ST, models have 5-speed constant torque electronically commutated (ECM) style motors that are significantly more efficient than PSC motors.
· The 208/240 volt models do not require the motor to be reconfigured for 208 volt applications, although the control transformer must still be reconfigured for 208 volt applications.
· The motor has a control module mounted on the end of the motor opposite the shaft end which is replaceable should only the control module itself fail.
· Constant torque ECM motors do not require a run capacitor.
· A terminal block on the motor shell is provided for the 5 speed taps, labeled T1  T5. The speed taps are 24VAC inputs. Do not connect line voltage to these speed taps. T1 provides the slowest speed and is dedicated to continuous fan operation. T2  T5 are for cooling & heating operation and are selectable at the terminal block using a single wire with an insulated terminal that plugs onto the terminals in the terminal block. Speed change instructions are detailed in Section 3.13.2.
· The constant torque motor has a built in soft start that will ramp the motor up to speed gradually.
· An off-delay is built into the control of the motor that keeps the motor energized for 30 seconds after 24 volts is removed from all speed tap terminals.
· If two of the speed tap terminals (T1  T5) are energized with 24 volts simultaneously, the motor will operate at the higher of the 2 speeds. An example of this is when the G and Y thermostat inputs are both energized in the cooling or heat pump heating mode. In this case, T1 (continuous fan) and a higher numbered speed tap will both be energized resulting in the motor operating at the higher speed to support the cooling or heat pump heating air-flow requirement.
· For (-)H2T models matched to a 2-Stage thermostat and 2-Stage outdoor unit, a 2nd stage call for cooling or heat pump heating operation will result in both Y1+Y2 thermostat inputs being energized. The indoor blower motor will operate in the 2nd stage mode based on which terminal the blue (Y2) lead is connected to on the motor low voltage terminal block as long as it is connected to a terminal with a higher number than the yellow (Y1) lead.
· The air-flow delivery rate for a constant torque ECM motor will not decrease as much as it does with a PSC motor as external static pressure increases.
5.2 MOTOR RUN CAPACITOR
Only the (-)H1P and (-)H1AY4821ST models have run capacitors due to the fact they have PSC motors. The capacitor is mounted on the blower housing using a sheet metal strap. The microfarad (mfd) & voltage ratings vary depending on the blower motor and must be replaced with one with the same rating, except 370V rated capacitors can always be replaced with a 440V rated capacitor.
5.3 BLOWER CONTROL
An electronic blower control is provided to control blower motor & electric heat operation and is located inside the control box attached to the blower housing. The blower control in the (-)H1P/(-)H1AY4821ST and (-)H2T/(-)H1A (constant torque) operate differently as described below.
(-)H1P/(-)H1AY4821ST - Blower Control
· The contacts in the on-board relay (BR) are used to connect line voltage to the motor speed tap when there is a call for motor operation. Motor speed changes are made by switching motor speed taps at this relay.
· The control has an on-board 3 amp automotive style fuse to protect the control circuit.
· A plug on the electric heater kit wiring harness plugs into a 4 pin plug receptacle on the blower control to allow control of the electric heater by the blower control based on thermostat input.
· There is a 5-pin connector for the thermostat pigtail harness to connect to. Wires from the thermostat do not connect directly to the blower control, but rather to the pigtails that are routed to the exterior of the air-handler cabinet.
· There is a 2 second on-delay for blower operation when there is a call for blower operation.
· There is a 30 second blower off-delay when a call for cooling or heat pump heating ends.
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· There is a 75 second blower off-delay when a call for electric heating ends. This allows time for the contacts in the bi-metallic disc type heating sequencer to open which de-energizes the heater elements.
(-)H2T/(-)H1A (Constant Torque) - Blower Control · There are two 24V outputs on the blower control for controlling the motor, one for continuous fan and one for cooling &
heating operation. · Motor speed changes are made at the motor speed terminal block instead of on the blower control. · The control has an on-board 3 amp automotive style fuse to protect the control circuit. · A plug on the electric heater kit wiring harness plugs into a 4 pin plug receptacle on the blower control to allow control
of the electric heater by the blower control based on thermostat input. · There is a 6-pin connector for the thermostat pigtail harness to connect to. Wires from the thermostat do not connect
directly to the blower control, but rather to the pigtails that are routed to the exterior of the air-handler cabinet. · There is no on-delay for blower operation when there is a call for blower operation. · There is no blower off-delay provided by the blower control when a call for cooling or heat pump heating ends since a
30 second off-delay is programmed into the constant torque ECM motor. · There is a blower off-delay programmed into the blower control when a call for electric heating ends. The delay is 45
seconds for the White-Rodgers control and 30 seconds for the UTEC control. This off-delay is added to the 30 second off delay programmed into the motor for a total off-delay of 75 or 60 seconds. This allows time for the contacts in the bi-metallic disc type heating sequencer to open which de-energizes the heater elements.
5.4 BLOWER
The blower utilizes a forward curved centrifugal wheel. The blower housing is constructed from galvanized sheet metal. The motor is attached with a 4-arm belly band type mount that screws into the side of the blower housing. The control box attaches to the front of the blower housing for assess through the blower access door. The blower slides into place on a track and is secured by 4 sheet metal screws.
5.5 TRANSFORMER
A 40VA transformer is located inside the control box attached to the blower housing which provides 24V control voltage for both the air-handler & the outdoor unit. The transformer in 208/240V models is wired from the factory for 240V applications, but has a separate 208V tap for 208V applications. The black wires connected to the 240V tap must be moved to the 208V tap when installing the air-handler in 208V applications to assure full 24V+ control voltage for reliable operation of the system controls.
5.6 INDOOR COIL ASSEMBLY
· The indoor coil slabs are a fin & tube design with enhanced aluminum fins & internally grooved aluminum tubing. · Most models have 3 coil slabs in an N configuration, but some models have 2 coil slabs in an A configuration. · All (-)H1P, (-)H2T, and (-)H1A air-handlers have non-bleed thermal expansion valves (TXV) for refrigerant control. · All models have a self-draining polypropylene condensate drain pan to eliminate standing water & a painted & insulated
sheet metal drip pan to catch any water drips from the coil when the air-handler is oriented in the horizontal position. · All models have built-in sheet metal channels in various locations designed to manage condensate when the air-handler
is oriented in the horizontal position, thus preventing water blow-off. · Copper stubs are provided for field tubing connections. · The coil assembly slides into the air-handler on sheet metal rails. The coil is installed in the factory for upflow & horizontal
left orientations. The coil must be removed and re-installed into the air-handler cabinet 180° from its factory orientation. An additional set of coil support rails must be installed before the coil can be re-installed. The additional set of rails are included with the air-handler for field installation. (See Section 3.2.2) · The TXV sensing bulb is shipped unattached & must be securely attached to the vapor line with the supplied clamp and insulated with the supplied foam insulation. (See Section 3.10)
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6.0 ACCESSORIES & KITS
6.1 ELECTRIC RESISTANCE HEATER KITS
· All (-)H1P, (-)H2T, and (-)H1A models are shipped without electric resistance heat.
· Electric heat kits ranging from 3kW to 30kW are available for field installation.
· Refer to Sections 3.13.5, 3.13.6, & 3.13.7 for electric heat kit model numbers available for specific air-handler models along with electrical ratings & additional information regarding the heater kits.
· Heater kit installation instructions are provided with the heater kit.
· All heater kits utilize open wire nickel chromium heating elements.
· An automatic reset over-temperature limit is provided to shut off the heater elements should air-flow become too restricted or if the blower motor fails.
· 13kW kits and larger are designed to operate in 2-stage heat mode if so desired or can be operated as single stage if the W1 & W2 thermostat pigtails are wired together.
· 208/240V single-phase (J Voltage), 208/240V 3-phase (C Voltage) & 480V 3-phase (D Voltage) heater kits are available.
· 115V (A Voltage) heater kits are not available.
· 208/240V 3-phase (C Voltage) heater kits must be installed in J Voltage air-handlers since there are no C Voltage air-handlers available. C voltage heater kits are for 3-phase applications and allow for smaller wire & fuse/breaker size compared to single-phase J Voltage heater kits.
· The heater kit is controlled by the blower control based on thermostat inputs.
· All heater kits are available with a circuit breaker style disconnect.
· 10kW heater kits and smaller are also available with either a pull-out style disconnect or with no disconnect.
· Incoming electric power is connected directly to the heater kit power terminals.
· The heater kit is provided with 2 power wires that connect to the air-handler power terminal block, providing power to operate the blower motor and controls.
· The heater kit is also provided with a 4-pin connector that plugs into a mating plug on the blower control to allow the control of the heater based on thermostat inputs.
6.2 JUMPER BAR KITS
· Jumper Bar Kit 3 Ckt. to 1 Ckt. RXBJ-A31 is used to convert single phase multiple three circuit units to a single supply circuit. Kit includes cover and screw for line side terminals.
· Jumper Bar Kit 2 Ckt. to 1 Ckt. RXBJ-A21 is used to convert single phase multiple two circuit units to a single supply circuit. Kit includes cover and screw for line side terminals.
NOTE: No jumper bar kit is available to convert three phase multiple two circuit units to a single supply circuit.
6.3 AUXILIARY HORIZONTAL OVERFLOW PANS

Cabinet Size
17.5 wide & 3621S 21' & 24.5 wide expect 3621S

Auxiliary horizontal overflow pan accessory model number
RXBM-AC48
RXBM-AC61

6.4 EXTERNAL FILTER BASES
(See Figure 22)
6.5 COMBUSTIBLE FLOOR BASES
For high heat downflow applications. (See Section 3.2.2.)

Model Cabinet Size 17
21 24

Filter Size 16 × 20 [406 x 508]
20 × 20 [508 x 508] 25 × 20 [635 x 508]

Part Number

RXHF-17 Accommodate

RXHF-21 1 or 2

RXHF-24

filter

FIGURE 22
EXTERNAL FILTER BASE: RXHF-

A 15.70
19.20 22.70

B 17.50
21.00 25.50

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6.6 HORIZONTAL ADAPTER KITS
This horizontal adapter kit is used to convert RCH replacement coils for horizontal applications if water management parts from original coil are not usable or are unavailable. See the following table to order proper horizontal adapter kit.

Model Cabinet Size
17 21 24

Combustible Floor Base Model Number
RXHB-17 RXHB-21 RXHB-24

7.0 INDOOR SERVICE/MAINTENANCE
For continuing high performance, and to minimize possible equipment failure, it is essential that periodic maintenance be
performed on this equipment. Consult your local dealer as to the proper frequency of maintenance and the availability of

*=A Coil

RCH Coil Model
2417 3617/3621S 3621M/4821S/4824S 4824M/6024S 3621M/4821S/6021S*

Horizontal Adapter Kit Model Numner (Single Qty.)
RXHH-A02 RXHH-A03 RXHH-A04 RXHH-A05 RXHH-A06

Horizontal Adapter Kit Model Number (10-pak Qty.)
RXHH-A02x10 RXHH-A03x10 RXHH-A04x10 RXHH-A05x10 RXHH-A06x10

a maintenance contract.
IMPORTANT: Before performing any service or maintenance procedures, see the Safety Information (Section 1.0) at the front of this manual. Servicing shall be performed only as recommended by the manufacturer and by qualified personnel who are trained by a training organization or manufacturer accredited to teach national competency standards that maybe be set in legislation for servicing equipment with flammable refrigerant. The achieved competence should be documents by a certificate.
7.1 GENERAL GUIDELINES
Prior to beginning work on systems containing A2L REFRIGERANTS, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the REFRIGERATING SYSTEM, the following procedures shall be completed prior
! WARNING
Units with circuit breaker(s) meet requirements as a service disconnect switch, however, if access is required to the line side (covered) of the circuit breaker, this side of the breaker(s) will be energized with the breaker(s) de-energized. Contact with the line side can cause electrical shock resulting in personal injury or death.
to conducting work on the system: · Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present while the work is being performed. · All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. · The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe. · If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area. · No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed. · Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
7.2 Checks to the Refrigerant Equipment
Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer's maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer's

64

technical department for assistance. The following checks shall be applied to installations using A2L REFRIGERANTS: · The actual REFRIGERANT CHARGE is in accordance with the room size within which the refrigerant containing parts are installed. · The ventilation machinery and outlets are operating adequately and are not obstructed. · If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant. · Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected. · Refrigerating pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
7.3 Checks to Electrical Devices
Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include: · That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. · That no live electrical components and wiring are exposed while charging, recovering or purging the system.
· That there is continuity of earth bonding.
7.4 Repairs to Sealed Components
During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation. Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. · Ensure that the apparatus is mounted securely. · Ensure that seals or sealing materials have not degraded to the point that they no longer serve the purpose of preventing the ingress of flammable atmospheres. · Replacement parts shall be in accordance with the manufacturer's specifications. Sealed electrical components shall be replaced.
7.5 Repair to Intrinsically Safe Components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak. NOTE: The use of silicon sealant can inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components must be replaced and do not have to be isolated prior to working on them.
7.6 Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sourc-
es such as compressors or fans.
7.7 Detection of Flammable Refrigerants
Under NO circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall NOT be used. The following leak detection methods are deemed acceptable for all refrigerant systems: · Electronic leak detectors may be used to detect refrigerant leaks but, in the case of FLAMMABLE REFRIGERANTS, the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the appropriate percentage of gas (25 % maximum) is confirmed. · Leak detection fluids (such as bubble method or fluorescent method agents) are also suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires
65

brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Removal of refrigerant shall be according to the next section (7.8 Removal and Evacuation).
7.8 Removal and Evacuation
When breaking into the refrigerant circuit to make repairs or for any other purpose, it is important that best practice is followed for A2L refrigerants. The following procedure shall be adhered to safely remove refrigerant following local and national regulations: Evacuate Purge the circuit with inert gas (optional for A2L) Evacuate (optional for A2L) Continuously flush or purge with inert gas when using flame to open circuit Open the circuit
The refrigerant charge shall be recovered into the correct recovery cylinders if venting is not allowed by local and national codes. For appliances containing A2L refrigerants, The system shall be purged with oxygen-free nitrogen to render the appliance safe for flammable refrigerants. This process might need to be repeated several times. Compressed air or oxygen shall NOT be used for purging refrigerant systems. The outlet for the vacuum pump shall NOT be close to any potential ignition sources, and ventilation shall be available. For appliances containing flammable refrigerants, refrigerants purging shall be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum (optional for A2L). This process shall be repeated until no refrigerant is within the system (optional for A2L). When the final oxygen-free nitrogen charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. The outlet for the vacuum pump shall NOT be close to any potential
ignition sources, and ventilation shall be available.
7.9 Charging Procedures
· Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them. · Cylinders shall be kept in an appropriate position according to the instructions. · Ensure that the REFRIGERATING SYSTEM is earthed prior to charging the system with refrigerant. · Label the system when charging is complete (if not already). · Extreme care shall be taken not to overfill the REFRIGERATING SYSTEM. Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site. For more in-depth charging procedures, refer to Refrigerant Charging section of the Outdoor Installation Instructions.
7.10 Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labeled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of the A2L refrigerant. If in doubt, the manufacturer should be consulted. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. The recovered refrigerant shall be processed according to local legislation in the correct recovery cylinder, and the relevant waste transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that refrigerant does not remain within the lubricant. The compressor body shall not be heated by an open flame or other ignition sources to accelerate this process. When oil is drained from a system, it shall be carried out safely
7.11 Decommissioning and Labeling
Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant. It is essential
66

that electrical power is available before the task is commenced. a) Become familiar with the equipment and its operation. b) Isolate system electrically. c) Before attempting the procedure, ensure that: Mechanical handling equipment is available, if required, for handling refrigerant cylinders; All personal protective equipment is available and being used correctly; The recovery process is supervised at all times by a competent person; Recovery equipment and cylinders conform to the appropriate standards.

d) Pump down refrigerant system, if possible. e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. f) Make sure that cylinder is situated on the scales before recovery takes place. g) Start the recovery machine and operate in accordance with instructions. h) Do not overfill cylinders (no more than 80 % volume liquid charge). i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. k) Recovered refrigerant shall not be charged into another REFRIGERATING SYSTEM unless it has been cleaned and checked. Equipment shall be labeled stating that it has been decommissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains FLAMMABLE REFRIGERANT.
7.12 AIR FILTER
Check the system filter every ninety days or as often as found to be necessary and if obstructed, clean or replace at once.

A qualified installer, service agency or HVAC professional should instruct the homeowner on how to access filters for regular maintenance.

IMPORTANT: Do not operate the system without a filter in place.

· New filters are available from a local distributor or home supply retailer.
7.13 INDOOR COIL, DRAIN PAN, DRAIN LINE
Inspect the indoor coil, drain pan, and drain line once each year for cleanliness and clean as necessary. Be sure to check the finned surface on the return side of the coil. It may be necessary to remove the air-filter and use a mirror and flashlight to view the return side of the coil. NOTE: A proper filter is the best defense against a dirty coil. Regardless of the filter choice, proper air-flow and velocity also play a crucial role in how effective a filter will be. Most filters will lose their effectiveness when face velocities exceed 300 - 400 feet per minute. Excessive air velocity can allow particles to pass right through the media. Additionally, loaded or restrictive filters may lose their shape in higher air velocity applications and allow unfiltered air to bypass the filter altogether around the sides. IMPORTANT: Coil and Drainpan Cleaning Method Clean the finned surface of the indoor coil by rinsing the coil from both sides with clean warm water and/or with a vacuum with a soft brush attachment to remove accumulated contaminants and lint. It is important not to allow the tool to damage or bend the fins. Many chemical cleaners will attack the aluminum tubes which can cause refrigerant leaks. Therefore, use only clean warm water for cleaning aluminum tube evaporator coils. Do not use caustic household drain

cleaners or bleach in the condensate pan or near the indoor coil as they will damage the aluminum fins and tubes.

7.14 BLOWER MOTOR AND WHEEL

Inspect the blower motor and wheel for cleanliness. It should be several years before it would become necessary to

clean the blower motor and wheel.

·

If it becomes necessary to remove the blower assembly from the unit, see instructions on removal and replace-

ment of motor, blower, and blower wheel in Sections 7.5-7.7 below.

·

The blower motor and wheel may be cleaned by using a vacuum with a soft brush attachment. Remove grease

with a mild solvent such as hot water and detergent. Be careful not to disturb the balance weights (clips) on the blower

wheel blades. Do not drop or bend wheel as balance will be affected.

7.15 MOTOR LUBRICATION

The blower motor sleeve bearings are pre-lubricated by the motor manufacturer and do not have oiling ports. Motor should

operate for an indefinite period of time without additional lubrication.

7.16 BLOWER ASSEMBLY REMOVAL & REPLACEMENT

Removing the blower assembly is not normally required for normal service and maintenance. Removal is necessary for

replacement of defective parts such as motor, blower wheel. After extended use, removal of the blower assembly may

become necessary for a thorough cleaning of the blower motor and wheel.

! WARNING

If removal of the blower assembly is required, all disconnect switches supplying power to the equipment must be de-energized and locked (if not in sight of unit) so the field power wires can be safely removed from the blower assembly. Failure to do so can cause electrical shock resulting in personal injury or death.

67

· Mark field power supply wiring (for replacement) attached to terminal block or circuit breaker(s) on blower assembly. Remove wiring from terminal block or circuit breaker(s).
· Mark low voltage control wiring (for replacement) where attached to unit control pigtails on right side of blower housing. Remove wire nuts attaching field control wiring to unit control pigtails.
· Remove 4 screws holding blower assembly to front channel of cabinet and pull blower assembly from cabinet. · To replace blower assembly, slide blower assembly into blower deck. Make sure blower assembly engages lances in
deck properly. If assembly hangs up, check to make sure top and bottom are lined up in proper locations. · Slide blower assembly to back of cabinet and make sure it is completely engaged. · Replace 4 screws holding blower assembly to front channel of cabinet. Take care not to strip screws. · Replace low voltage control wiring with wire nuts and make sure wiring is per the wiring diagram and all connections are
tight and secure. · Replace field power wiring to terminal block or circuit breaker(s) on control area of blower assembly. Make sure wires
are connected per the wiring diagram. Tighten supply power wiring securely to terminals lugs. · Make sure wiring is within cabinet and will not interfere with access door. Make sure there is proper separation between
low voltage control wiring and field power wiring. · Replace blower assembly control access panel before energizing equipment.
7.17 MOTOR REPLACEMENT
With the blower assembly removed, the indoor blower motor can be removed and replaced using the following procedure: · Remove motor leads from the motor capacitor and blower control for (-)H1P/(-)H1A4821ST or motor terminals for (-)
H2T/(-)H1A (constant torque) models. Note lead locations for ease of reassembly. Pull leads from plastic bushing in blower side. · Loosen the set screw holding blower wheel onto the motor shaft. The shaft extends through blower hub so that a wrench can be used on the extended shaft to break the shaft loose if necessary. Be careful not to damage shaft. A wheel puller can be used on the groove in the blower hub if necessary. · Remove 4 screws holding the motor mounts to the blower side and remove motor mount assembly from blower assembly. · Remove the screw on the belly band strap around the motor shell and remove the 4 mounts from motor. · Install (four) motor mounts and the belly band strap on the new motor using the screws removed in the previous step. · Insert the motor shaft through the hub in blower wheel and orient motor to original position with motor leads and motor label facing the front of blower (control area). · Reassemble 4 screws through motor mounts into blower side. Do not overtorque screws. · Turn motor shaft so that flat on shaft is located under blower wheel setscrew, and blower wheel is centered in blower housing with the same distance on each side between the inlet orifice and outside of blower wheel. Tighten setscrew on motor shaft. Turn wheel by hand to make sure it runs true without hitting blower sides. · Reassemble motor wiring to capacitor and blower control for (-)H1P/(-)H1A4821ST or motor terminals for (-)H2T/(-)H1A (constant torque) models, making sure that wires match wiring diagram and are tight and secure.
7.18 BLOWER WHEEL REPLACEMENT
· Hold blower wrap down into position and replace screws holding blower wrap to blower sides. · See motor replacement and blower assembly instructions for remaining assembly procedure.
7.19 REPLACEMENT PARTS
Any replacement part used to replace parts originally supplied on equipment must be the same as or an approved alternate to the original part supplied. The manufacturer will not be responsible for replacement parts not designed to physically fit or operate within the design parameters the original parts were selected for. These parts include but are not limited to: Circuit breakers, heater controls, heater limit controls, heater elements, motor, motor capacitor, blower control, control transformer, blower wheel, indoor coil and sheet metal parts. When ordering replacement parts, it is necessary to order by part number and include with the order the complete model number and serial number from the unit data plate. (See Parts List for unit component part numbers).
68

8.0 DIAGNOSTICS

Problem

Possible Cause (Suggested Fix)

Blower Motor will not operate · · ·

·

·

· · ·

Excessive vibration

·

Water overflowing drain pan · ·

Failed run capacitor on (-)H1P/(-)H1A4821ST (replace) Failed motor (replace) Failed motor control module on (-)H2T/(-)H1A (constant torque) models (replace module) Blown 3A fuse on blower control (check for control circuit short, replace fuse) Loose wiring connection or broken wire (check connections & wiring) Failed transformer (replace) Failed blower control (replace) Disconnect breaker is turned off or has tripped due to over-current or shorted circuit (check for shorts, reset breaker)
Blower wheel out of balance (replace or clean blower wheel)
Plugged drain (clear drain) Unit not level (level unit)

Electric heater not heating · properly or not heating at all, · but blower motor is operating ·
·

Over temperature limit has tripped (check for low air-flow) Over temperature limit has failed (replace) Sequencer or contactor has failed (replace) One or more heating elements have burned out (replace)

Coil is frozen up Excessive air-flow

· System low on refrigerant charge (check for leaks & adjust charge)
· Dirty return air filter (replace filter) · Inadequate air-flow due to incorrect blower motor speed selected
(select higher speed) or excessively restrictive duct system (correct duct system)
· Incorrect blower motor speed selected (select lower speed)

Water blow-off from coil

· Excessive air-flow (select lower blower motor speed) · Contaminants on coil fins (clean coil) · Damaged coil fins (comb out fins or replace coil)

TXV not controlling properly · TXV bulb not positioned correctly or clamp not tight (Check position of TXV sensing bulb and tightness of clamp)
· Failed TXV (replace) · Plugged TXV inlet screen (clean or replace screen or replace
TXV)

Blower Constantly Running · A2L Sensor Failure (Replace RDS if Necessary)

69

9.0 WIRING DIAGRAMS
9.1 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 115V
70

BOARD

WIRING DIAGRAM
GND

SCHEMATIC DIAGRAM

GND BOARD

XFMR-R

XFMR-C

BOARD

NOTES
01 CONNECT SUPPLY WIRING TO 115V, 60HZ. SINGLE PHASE.
02 SUPPLY WIRE MUST BE RATED AT 75º C MIN. SEE INSTRUCTIONS FOR SIZE.
03 FOR USE WITH COOPER CONDUCTORS ONLY. 04 CONTROL WIRING TO THERMOSTAT. 05 THE WIRING DIAGRAM ABOVE SHOWS THE HIGH
CONNECTIONS. 06 FOR LOW SPEED BLOWER:
-REMOVE (BK) WIRE FROM (NO) OF THE BOARD RELAY. -MOVE INSULATED CAP FROM (RD) WIRE TO (BK) WIRE. -ATTACH (RD) WIRE TO THE (NO) OF THE BOARD RELAY.

COMPONENT CODES

BOARD CB CT GND IBM OPT PL RC

BLOWER CONTROL CIRCUIT BREAKER CONTROL TRANSFORMER GROUND INDOOR BLOWER MOTOR OPTIONAL POLARIZED PLUG RUN CAPACITOR

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

LOW VOLTAGE
-FACTORY STANDARD
-FACTORY OPTION
-FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

ELECTRIC AIR HANDLER PSC MOTOR 115 VOLT

DR. BY

DWG. NO.

REV.

90-102701-01 05

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

NOTES
01 CONNECT SUPPLY WIRING TO 115V, 60HZ. SINGLE PHASE.
02 SUPPLY WIRE MUST BE RATED AT 75º C MIN. SEE INSTRUCTIONS FOR SIZE.
03 FOR USE WITH COOPER CONDUCTORS ONLY.
04 CONTROL WIRING TO THERMOSTAT.
05 THE WIRING DIAGRAM ABOVE SHOWS THE HIGH CONNECTIONS.
06 FOR LOW SPEED BLOWER: -REMOVE (BK) WIRE FROM (NO) OF THE BOARD RELAY. -MOVE INSULATED CAP FROM (RD) WIRE TO (BK) WIRE. -ATTACH (RD) WIRE TO THE (NO) OF THE BOARD RELAY.

BOARD CB CT GND IBM OPT PL RC

COMPONENT CODES
BLOWER CONTROL CIRCUIT BREAKER CONTROL TRANSFORMER GROUND INDOOR BLOWER MOTOR OPTIONAL POLARIZED PLUG RUN CAPACITOR

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

ELECTRIC AIR HANDLER PSC MOTOR 115 VOLT

APPROVED:

CHECKED:

ORIGINAL RELEASE NO.:

JHB MODELED BY: DATE: 6/26/2007

PART NO.:

90-102701-01

H-1005S130

REV:

05

XFMR-R XFMR-C COM
Y1 W2 W1 G C R

9.2 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 208/240V
71

WIRING DIAGRAM

SCHEMATIC DIAGRAM

BOARD

GND

M1 E5 E3

BOARD
L1
COM NO
FAN

FOR OPTIONAL
HEAT

Y GND

BOARD
FOR OPTIONAL
HEAT

NOTES
1. CONNECT SUPPLY WIRING TO 208/240V, 60HZ. SINGLE PHASE.
2. SUPPLY WIRE MUST BE RATED AT 75º C MIN. SEE INSTRUCTIONS FOR SIZE.
3. FOR USE WITH COOPER CONDUCTORS ONLY. 4. CONTROL WIRING TO THERMOSTAT. 5. THE WIRING DIAGRAM ABOVE SHOWS THE HIGH
CONNECTIONS. 6. FOR LOW SPEED BLOWER:
-REMOVE (BK) WIRE FROM NO TERMINAL OF BOARD. -MOVE INSULATED CAP FROM (R) WIRE TO (BK) WIRE. -ATTACH (R) WIRE TO BOARD NO TERMINAL. 7. WHEN USING 13KW AND HIGHER JUMP W1 AND W2 TOGETHER FOR MAXIMUM TEMPERATURE RISE. 8. FOR 208V APPLICATIONS MOVE BK WIRES FROM 240V TAP TO 208V TAP ON CT. SWAP Y & PR WIRES AT PL6.

COMPONENT CODES

BOARD CB CT GND IBM OPT PL RC TB

BLOWER CONTROL CIRCUIT BREAKER CONTROL TRANSFORMER GROUND INDOOR BLOWER MOTOR OPTIONAL POLARIZED PLUG RUN CAPACITOR TERMINAL BLOCK

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

LOW VOLTAGE

-FACTORY STANDARD -FACTORY OPTION

ELECTRIC AIR HANDLER

-FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE

PSC MOTOR 208/240 VOLT

OF INSULATION AS ORIGINAL (105C. MIN.)

WARNING

-CABINET MUST BE PERMANENTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL

CODE AS APPLICABLE.

DR. BY

DWG. NO.

JHB

90-102702-01

REV.
08

9.3 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 115V
72

3
FOR OPTIONAL ELECTRIC HEAT

WIRING DIAGRAM
W

SPEED TAP TABLE

Outdoor Tonnage
1.5 Ton 2.0 Ton 2.5 Ton 3.0 Ton 3.5 Ton 4.0 Ton 5.0 Ton

Low Speed (Y1)
T2 T4 T2 T4 T2 T4 T4

High Speed (Y2)
T3 T5 T3 T5 T3 T5 T5

4

W W
115

(PFC) OPTIONAL
6
W

SCHEMATIC DIAGRAM
PFC
3

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

NOTES
1. CONNECT SUPPLY WIRING FOR 115 V VOLTAGE, PHASE AND HERTZ SHOWN ON RATING PLATE. 2. SUPPLY WIRE MUST BE RATED AT 75° C MIN. SEE INSTRUCTIONS FOR SIZE. 3. CONTROL WIRING TO THERMOSTAT. 4. BLOWER SPEED SELECT (BL AND YL WIRES) ARE FACTORY WIRED TO HIGH SPEED TAPS 4 AND 5
RESPECTIVELY. SEE TABLE FOR OTHER TONNAGE CONFIGURATIONS. 5. FOR USE WITH COPPER CONDUCTORS ONLY. 6. FOR USE WITH ONLY 3/4 AND 1 HP MOTORS. 7. HEATER KIT CANNOT BE USED ON 115V "A" OR "L" AIRHANDLER MODELS.

COMPONENT CODES
CT CONTROL TRANSFORMER GND GROUND IBM INDOOR BLOWER MOTOR OPT OPTIONAL PFC POWER FACTOR CHOKE
WIRE NUT TB TERMINAL BLOCK (HI VOLT)

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

ELECTRICAL AIR HANDLER

115V X-13 MOTOR

APPROVED:

CHECKED:

ORIGINAL RELEASE NO.:

VYM MODELED BY: DATE: 6/30/2021

PART NO.:

90-101897-15

101443

REV:

03

9.4 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 230V
73

FOR OPTIONAL ELECTRIC HEAT

WIRING DIAGRAM

SPEED TAP TABLE

Outdoor Tonnage
1.5 Ton 2.0 Ton 2.5 Ton 3.0 Ton 3.5 Ton 4.0 Ton 5.0 Ton

Low Speed (Y1)
T2 T4 T2 T4 T2 T4 T4

High Speed (Y2)
T3 T5 T3 T5 T3 T5 T5

SCHEMATIC DIAGRAM

CONTROL BOX
NOTES
1. CONNECT SUPPLY WIRING FOR VOLTAGE, PHASE AND HERTZ SHOWN ON RATING PLATE.
2. SUPPLY WIRE MUST BE RATED AT 75° C MIN. SEE INSTRUCTIONS FOR SIZE.
3. CT FACTORY WIRED FOR 240 VOLTS. MOVE WIRES FROM 240V TO 208V FOR 208V OPERATION.
4. CONTROL WIRING TO THERMOSTAT.
5. BLOWER SPEED SELECT (BL AND YL WIRES) ARE FACTORY WIRED TO HIGH SPEED TAPS 4 AND 5 RESPECTIVELY. SEE TABLE FOR OTHER TONNAGE CONFIGURATIONS.
6. FOR USE WITH COPPER CONDUCTORS ONLY.
7. WHEN USING 13KW AND HIGHER IT IS RECOMMENDED TO JUMP W1 AND W2 TOGETHER FOR MAXIMUM TEMPERATURE RISE.

COMPONENT CODES
BTD BLWR TIME DELAY CB/TB CIRCUIT BREAKER OR TERMINAL BLOCK CT CONTROL TRANSFORMER FL FUSIBLE LINK FS FLOAT SWITCH GND GROUND HE HEATER ELEMENT HR HEATER RELAY IBM INDOOR BLOWER MOTOR LC LIMIT CONTROL PL POLARIZED PLUG OPT OPTIONAL OS "ONE SHOT" - SINGLE OPERATION
TEMP CONTROL RC RUN CAPACITOR TB TERMINAL BLOCK (HI VOLT) TDR TIME DELAY RELAY
WIRE NUT

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

ELECTRICAL AIR HANDLER 230V X-13 MOTOR

DR. BY

DATE:

DWG. NO.

REV.

JHB 12/13/2011 90-101897-06 04

9.5 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 230V
74

3
FOR OPTIONAL ELECTRIC HEAT

COM COM2

1 2 R BL

R/BK

3

RDS

4

5 R/BK BR

6

7

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

WIRING DIAGRAM
126
O

SPEED TAP TABLE 5

TONS

Y1, Y2

LOW HIGH STATIC STATIC

Y1 T2

T4

2 TON

Y2 T3

T5

Y1 T2

T4

3 TON

Y2 T3

T5

Y1 T2

T4

4 TON

Y2 T3

T5

Y1 T2

T4

5 TON

Y2 T3

T5

O O
208 COM 240 V
3

5
(PFC) OPTIONAL
6
O

WIRING SCHEMATIC
126
PFC

COM 24VAC
RDS
3

COM COM2
5

NOTES

1

CONNECT SUPPLY WIRING FOR VOLTAGE, PHASE AND HERTZ SHOWN ON RATING PLATE.

2 SUPPLY WIRE MUST BE RATED AT 75°C MIN. SEE INSTRUCTIONS FOR SIZE.

3

CT FACTORY WIRED FOR 240 VOLTS. USE O & BL FOR 208 VOLTS.

4 CONTROL WIRING TO THERMOSTAT SUB-BASE.

5 CONTROL WIRING TO OUTDOOR UNIT.

6 FOR USE WITH COPPER CONDUCTORS ONLY.

7

THE DOTTED BOX NEAR THE DRAWING NUMBER REPRESENTS A .25 X .25 2D DATA MATRIX. SEE ADS-104669-01 FOR DATA MATRIX SPECS.

8

BLOWER SPEED SELECT (BL WIRE) IS FACTORY WIRED TO FULL TONNAGE HIGH SPEED TAP T5.

COMPONENT CODES

BC BLOWER CONTROL

C MOTOR CONTROL PLUG

CB CIRCUIT BREAKER

CT CONTROL TRANSFORMER

GND GROUND

HE HEATER ELEMENT

HR HEATER RELAY

IBM INDOOR BLOWER MOTOR

LC LIMIT CONTROL

MRLC MANUAL RESET LIMIT CONTROL

P

MOTOR POWER PLUG

RDS REFRIGERANT DETECTION SYSTEM

TB TERMINAL BLOCK (HI VOLT)

WIRE NUT

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

WIRING DWIIARGINRGADMIA/SGCRHAEMMATIC

ELECTRICAL AIR HANDLER 230V X-13 MOTOR

APPROVED:

CHECKED:

ORIGINAL RELEASE NO.:

ALB MODELED BY:

DATE: 10/30/2023

114304

PART NO.:

90-109885-02

02 REV:

9.6 WIRING DIAGRAM (-)H2T/(-)H1A (CONSTANT TORQUE) - 115V
75

3
FOR OPTIONAL ELECTRIC HEAT

1

2 R BL

BR

3

RDS

4

5 R/BK R/BK

6

7

WIRING INFORMATION
LINE VOLTAGE
-FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE
-FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF I NSULATION AS ORIGINAL (105C. MIN.)
WARNING -CABINET MUST BE PERMANE NTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODES A S APPLICABLE.

WIRING DIAGRAM
5

SPEED TAP TABLE

SCHEMATIC DIAGRAM
5

W
W W
115

4
(PFC) OPTIONAL
6
W

COM 24VAC
RDS
3

PFC
4

NOTES

1

CONNECT SUPPLY WIRING FOR VOLTAGE, PHASE AND HERTZ SHOWN ON RATING PLATE.

2 SUPPLY WIRE MUST BE RATED AT 75°C MIN. SEE INSTRUCTIONS FOR SIZE.

3

CT FACTORY WIRED FOR 240 VOLTS. USE O & BL FOR 208 VOLTS.

4 CONTROL WIRING TO THERMOSTAT SUB-BASE.

5 CONTROL WIRING TO OUTDOOR UNIT.

6 FOR USE WITH COPPER CONDUCTORS ONLY.

7

THE DOTTED BOX NEAR THE DRAWING NUMBER REPRESENTS A .25 X .25 2D DATA MATRIX. SEE ADS-104669-01 FOR DATA MATRIX SPECS.

8

BLOWER SPEED SELECT (BL WIRE) IS FACTORY WIRED TO FULL TONNAGE HIGH SPEED TAP T5.

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

COMPONENT CODES

BR......BROWN GY......GRAY R........RED BL.......BLUE O........ORANGE W.......WHITE

BC BLOWER CONTROL

Y........YELLOW

C MOTOR CONTROL PLUG CB CIRCUIT BREAKER

ELECTRICAL WIRING DIAGRAM

CT CONTROL TRANSFORMER GND GROUND

ELECTRICAL AIR HANDLER

HE HEATER ELEMENT

HR HEATER RELAY IBM INDOOR BLOWER MOTOR

115V X-13 MOTOR

LC LIMIT CONTROL

MRLC MANUAL RESET LIMIT CONTROL APPROVED: P MOTOR POWER PLUG

CHECKED:

ORIGINAL RELEASE NO.:

RDS REFRIGERANT DETECTION SYSTEM MODELED BY: ALB DATE: 10/30/2023

TB TERMINAL BLOCK (HI VOLT)

WIRE NUT

PART NO.: 90-109885-03

114304 REV: 00

9.7 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 115V
76

RDS

R CG

G/BK
R R

62

7

84

BR 73 MR
10

R

G

R/BK

1234567

G/BK BR BR
BOARD

SCHEMATIC DIAGRAM

GND
BOARD

RDS
24 COM VAC
MR

XFMR-R

XFMR-C

BOARD

GND

MR

MR

NOTES
01 CONNECT SUPPLY WIRING TO 115V, 60HZ. SINGLE PHASE.
02 SUPPLY WIRE MUST BE RATED AT 75º C MIN. SEE INSTRUCTIONS FOR SIZE.
03 FOR USE WITH COOPER CONDUCTORS ONLY. 04 CONTROL WIRING TO THERMOSTAT. 05 THE WIRING DIAGRAM ABOVE SHOWS THE HIGH
CONNECTIONS. 06 FOR LOW SPEED BLOWER:
-REMOVE (BK) WIRE FROM (NO) OF THE BOARD RELAY. -MOVE INSULATED CAP FROM (RD) WIRE TO (BK) WIRE. -ATTACH (RD) WIRE TO THE (NO) OF THE BOARD RELAY.

COMPONENT CODES

BOARD BLOWER CONTROL

CB

CIRCUIT BREAKER

CT

CONTROL TRANSFORMER

GND GROUND

IBM INDOOR BLOWER MOTOR

MR

MITIGATION RELAY

OPT OPTIONAL

PL

POLARIZED PLUG

RC

RUN CAPACITOR

RDS REFRIGERANT DETECTION SYSTEM

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

ELECTRIC AIR HANDLER PSC MOTOR 115 VOLT

DR. BY

DWG. NO.

REV.

VYM

90-109885-10 03

9.8 WIRING DIAGRAM (-)H1P/(-)H1AY4821ST - 208/240V
77

RDS

R CG

G/BK
R R

62

7

84

BR 73 MR
10

R

G

R/BK

1234567

G/BK BR BR

WIRING DIAGRAM

XFMR-R XFMR-C COM
Y1 W2 W1 G C R

BOARD

FOR OPTIONAL
HEAT

L1
COM

NO

Y

FAN

M1 E5 E3

GND

SCHEMATIC DIAGRAM

BOARD

GND

RDS
24 COM VAC
MR

BOARD

MR

MR

FOR OPTIONAL
HEAT

NOTES
1. CONNECT SUPPLY WIRING TO 208/240V, 60HZ. SINGLE PHASE.
2. SUPPLY WIRE MUST BE RATED AT 75º C MIN. SEE INSTRUCTIONS FOR SIZE.
3. FOR USE WITH COOPER CONDUCTORS ONLY. 4. CONTROL WIRING TO THERMOSTAT. 5. THE WIRING DIAGRAM ABOVE SHOWS THE HIGH
CONNECTIONS. 6. FOR LOW SPEED BLOWER:
-REMOVE (BK) WIRE FROM NO TERMINAL OF BOARD. -MOVE INSULATED CAP FROM (R) WIRE TO (BK) WIRE. -ATTACH (R) WIRE TO BOARD NO TERMINAL. 7. WHEN USING 13KW AND HIGHER JUMP W1 AND W2 TOGETHER FOR MAXIMUM TEMPERATURE RISE. 8. FOR 208V APPLICATIONS MOVE BK WIRES FROM 240V TAP TO 208V TAP ON CT. SWAP Y & PR WIRES AT PL6.

COMPONENT CODES

BOARD BLOWER CONTROL

CB

CIRCUIT BREAKER

CT

CONTROL TRANSFORMER

GND GROUND

IBM INDOOR BLOWER MOTOR

MR

MITIGATION RELAY

OPT OPTIONAL

PL

POLARIZED PLUG

RC

RUN CAPACITOR

RDS REFRIGERANT DETECTION SYSTEM

TB

TERMINAL BLOCK

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED
LOW VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (105C. MIN.) WARNING -CABINET MUST BE PERMANENTLY GROUNDED AND CONFORM TO I.E.C., N.E.C., C.E.C., NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

WIRING DIAGRAM - ELECTRICAL

ELECTRIC AIR HANDLER (PSC MOTOR 208/240 VOLT)

DR. BY

DWG. NO.

REV.

VYM

90-109885-11 03

9.9 WIRING DIAGRAM (-)H1P - 480V
78

R CG

G/BK BR

G/BK

BR

R

BR

R

62
84
73
MR
10

PL7 BR

6

XFMR-R

R

BR

G

1234567

XFMR-C COM C W2 W1 Y1 W2 W1 G C R

DIAGRAM
W1 W2
W/BK W/BL
FOR OPTIONAL HEAT

RDS

M1 E5 E3

L1

6

R/BK 7

FAN

5

32

1

1

2

SCHEMATIC

BOARD

NO

COM

RDS
24 COM VAC
MR

3

R
XFMR-R

BR
XFMR-C

BOARD

MR

MR

CONTROL BOX
NOTES
11. CONNECT SUPPLY WIRING TO 460V, 60HZ THREE PHASE. 22. SUPPLY WIRE MUST BE RATED AT 75° C MIN. SEE INSTRUCTIONS FOR
SIZE. 33. FOR USE WITH COPPER CONDUCTORS ONLY. 44. CONTROL WIRING TO THERMOSTAT. 55. THE WIRING DIAGRAM ABOVE SHOWS THE HIGH-SPEED CONNECTION. 66. FOR LOW SPEED BLOWER:
- REMOVE (BK) WIRE FROM 3 TERMINAL OF THE BR. - REMOVE THE INSULATED CAP FROM (RD) WIRE AND (YL) WIRES. - CONNECT (BK) AND (YL) WIRES INSTALL 1 INSULATED CAP. - CONNECT (RD) WIRE TO TERMINAL 3 OF BR. 77. THERE IS NO (YL) WIRE FOR 5-TON MOTOR. DO NOT CONNECT (YL) WIRE WITH (RD) WIRE. THE CONNECTION OF (YL) WITH (RD) WIRE WILL CAUSE PERMANENT MOTOR DAMAGE. - ATTACH (RD) WIRE TO BR RELAY 3 TERMINAL.

COMPONENT CODES

BOARD CONTROL BOARD

BR BLOWER RELAY

CB CIRCUIT BRAKER

CT CONTROL TRANSFORMER

IBM INDOOR BLOWER MOTOR

IS

ISOLATED MAIN

OPT OPTIONAL

PL POLARIZED PLUG

RC RUN CAPACITOR

TB TERMINAL BLOCK

WIRE COLOR CODE

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED

BK......BLACK G........GREEN BR......BROWN GY......GRAY BL.......BLUE O........ORANGE

PR......PURPLE R........RED W.......WHITE Y........YELLOW

WIRING - DIAGRAM/SCHEMATIC

LOW VOLTAGE

-FACTORY STANDARD

-FACTORY OPTION
-FIELD INSTALLED REPLACEMENT WIRE

ELECTRIC AIR HANDLER PSC MOTOR - 480 VOLT

-MUST BE THE SAME SIZE AND TYPE

OF INSULATION AS ORIGINAL (105C. MIN.)

WARNING

-CABINET MUST BE PERMANENTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL CODE AS APPLICABLE.

DR. BY
MAB

DWG. NO.
90-109885-15

REV.
00

9.10 WIRING DIAGRAM (-)H1P - 480V
79

9.11 WIRING DIAGRAM (-)H2T - 480V
80

DIAGRAM
12 5

3
FOR OPTIONAL ELECTRIC HEAT

R BR

W/BK

Y/BL

G/BK

W/BL

Y

TB1

BK

O

BOARD

BR G/BK
W/BK W/BL
Y/BL
BR G/BK
BL R
BR
BR

RDS

1

2 R BL

BR

3

4

5 R/BK R/BK

6

7

BK BK
O O

460V

COM

CT

24V

BR

R

4

SPEED TAP TABLE

TONS

LOW SPEED

HIGH SPEED

1.5

T2

T3

2.0

T4

T5

2.5

T2

T3

3.0

T4

T5

3.5 (21)

T2

T3

4.0 (21)

T4

T5

4.0 (24)

T2

T3

5.0 (24)

T4

T5

BR G/BK
4
Y BL

IBM

BK O G

12

SCHEMATIC
5

TB1

COM 24VAC
RDS
4 3

NOTES:
11. CONNECT SUPPLY WIRING FOR VOLTAGE. PHASE AND HERTZ SHOWN ON RATING PLATE.
22 . SUPPLY WIRE MUST BE RATED AT 75° C MIN. SEE INSTRUCTIONS FOR SIZE.
33 . CONTROL WIRING TO THERMOSTAT. 44. BLOWER SPEED SELECT (BL WIRE) IS FACTORY WIRED TO
FULL TONNAGE HIGH SPEED TAB T5. EXCEPT FOR 4-TON IN 24" WIDE CABINET. 4-TON 24" IS FACTORY WIRED TO T3. (SEE SPEED TAP TABLE FOR ALTERNATE CONFIGURATION) 55. FOR USE WITH COPPER CONDUCTORS ONLY. 66. WHEN USING 13KW AND HIGHER IT IS RECOMMENDED TO JUMP W1 AND W2 TOGETHER FOR MAXIMUM TEMPERATURE RISE.

COMPONENT CODES

BOARD CT GND IBM TB

BLOWER CONTROL CONTROL TRANSFORMER GROUND INDOOR BLOWER MOTOR TERMINAL BLOCK (HI VOLT) WIRE NUT

WIRE COLOR CODE

WIRING INFORMATION
LINE VOLTAGE -FACTORY STANDARD -FACTORY OPTION -FIELD INSTALLED

BK......BLACK G........GREEN BR......BROWN GY......GRAY BL.......BLUE O........ORANGE

PR......PURPLE R........RED W.......WHITE Y........YELLOW

LOW VOLTAGE -FACTORY STANDARD

WIRING - DIAGRAM/SCHEMATIC

-FACTORY OPTION

-FIELD INSTALLED REPLACEMENT WIRE -MUST BE THE SAME SIZE AND TYPE

ELECTRICAL AIR HANDLER 480V - CONSTANT TORQUE MOTOR

OF INSULATION AS ORIGINAL (105C. MIN.)

WARNING

-CABINET MUST BE PERMANENTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL

CODE AS APPLICABLE.

DR. BY

DWG. NO.

REV.

MAB

90-109885-16 00

9.12 WIRING DIAGRAM (-)H2T - 480V
81

6 5
3

4 5

4

460

WIRING INFORMATION

LINE VOLTAGE

-FACTORY STANDARD

1.

-FACTORY OPTION

-FIELD INSTALLED

2.

LOW VOLTAGE

3.

-FACTORY STANDARD

-FACTORY OPTION

4.

-FIELD INSTALLED

REPLACEMENT WIRE

-MUST BE THE SAME SIZE AND TYPE

5.

OF I NSULATION AS ORIGINAL (105C. MIN.)

WARNING

6.

-CABINET MUST BE PERMANE NTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL

CODES A S APPLICABLE.

NOTES
CONNECT SUPPLY WIRING FOR VOLTAGE, PHASE AND HERTZ SHOWN ON RATING PLATE. SUPPLY WIRE MUST BE RATED AT 75° C MIN. SEE INSTRUCTIONS FOR SIZE. CONTROL WIRING TO THERMOSTAT. BLOWER SPEED SELECT (BL WIRE) IS FACTORY WIRED TO FULL TONNAGE HIGH SPEED TAB T5, (SEE SPEED TAB TABLE FOR ALTERNATE CONFIGURATION) FOR USE WITH COOPER CONDUCTORS ONLY. WHEN USING 13KW AND HIGHER IT IS RECOMMENDED TO JUMP W1 AND W2 TOGETHER FOR MAXIMUM TEMPERATURE RISE.

4 3

COMPONENT CODES

6

WIRE COLOR CODE

BK......BLACK G........GREEN PR......PURPLE

BR......BROWN GY......GRAY

R........RED

BL.......BLUE O........ORANGE W.......WHITE

Y........YELLOW

ELECTRICAL WIRING DIAGRAM

ELECTRICAL AIR HANDLER

480V X-13 MOTOR

APPROVED:

CHECKED:

ORIGINAL RELEASE NO.:

MODELED BY: VYM DATE: 6/30/2021

PART NO.:

90-101897-16

101444 REV: 01

82

83

84
References

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