Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing
operations. Have a fire extinguisher available. Read the
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. Consult local
building codes and relevant electrical codes.

Installation

Before starting the installation, make sure to read the entire
instruction manual. Ensure that the Owner’s Manual and Service
Instructions are left with the unit after installation for future
reference.

Important Notes

Effective January 1, 2015, all split system and packaged air
conditioners must be installed according to regional efficiency
standards issued by the Department of Energy.

FAQ

Q: What should I do before servicing the unit?

A: Before servicing the unit, always turn off
the main power to the system and install a lockout tag to prevent
accidental power-ups. Also, make sure to relieve system pressure
and recover all refrigerants following the specified procedures to
avoid personal injury or environmental hazards.

Q: Can I use non-manufacturer approved parts?

A: It is not recommended to use
non-manufacturer approved parts as it could invalidate the
equipment warranty, pose fire risks, lead to equipment malfunction,
and compromise safety. Stick to approved accessories and
replacement parts specified by the manufacturer for optimal
performance and reliability.

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PHR5 15+ SEER2 2-Stage Packaged Heat Pump System with R-410A Refrigerant Single and Three Phase 2-5 Nominal Tons (Sizes 24-60)

Installation Instructions

IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy.
NOTE: Read the entire instruction manual before starting the installation.
NOTE: Installer: Make sure the Owner’s Manual and Service Instructions are left with the unit after installation.

Fig. 1 Unit PHR5

A09033

Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Rigging/Lifting of Unit (See Fig. 5) . . . . . . . . . . . . . . . . . . . . . . 8 Configuring Units for Downflow (Vertical) Discharge . . . . . . . 9 High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Special Procedures for 208-V Operation . . . . . . . . . . . . . . . . . 10 Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Standard Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 13 Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 13 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Demand Defrost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Outdoor Coil, Indoor Coil, and Condensate Drain Pan . . . . . . 25 Outdoor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 25 Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Evaporator Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Metering Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Copeland Scroll Compressor R-410A Refrigerant) . . . . . . . . . 26 Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Compressor Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Servicing Systems on Roofs with Synthetic Materials. . . . . . . 26 Synthetic Roof Precautionary Procedure . . . . . . . . . . . . . . . . . 27 Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 R-410A Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 27 Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Check Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Safety Considerations
Improper installation adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes, the current editions of the National Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the Canadian electrical Code CSA C22.1.
Recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words; DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before installing or servicing system, always turn off main power to system and install lockout tag. There may be more than one disconnect switch. Turn off accessory heater power switch if applicable.
! WARNING
PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to relieve system pressure could result in personal injury and/or death.
1. Relieve pressure and recover all refrigerant before servicing existing equipment, and before final unit disposal. Use all service ports and open all flow-control devices, including solenoid valves.
2. Federal regulations require that you do not vent refrigerant into the atmosphere. Recover during system repair or final unit disposal.
! CAUTION
CUT HAZARD Failure to follow this caution may result in personal injury. When removing access panels (see Fig. 20) or performing maintenance functions inside your unit, be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be extremely careful and wear appropriate protective clothing, safety glasses and gloves when handling parts or reaching into the unit.
! WARNING
PERSONAL INJURY AND PROPERTY DAMAGE HAZARD For continued performance, reliability, and safety, the only approved accessories and replacement parts are those specified by the equipment manufacturer. The use of non-manufacturer approved parts and accessories could invalidate the equipment limited warranty and result in fire risk, equipment malfunction, and failure. Please review manufacturer’s instructions and replacement part catalogs available from your equipment supplier.
Introduction
This packaged heat pump is fully self-contained and designed for outdoor installation (See Fig. 1). See Fig. 2 and Fig. 3 for unit dimensions. All unit sizes have discharge openings for both horizontal and downflow configurations, and are factory shipped with all downflow duct openings covered. The unit may be installed either on a rooftop or on a ground-level cement slab. (See Fig. 4 for roof curb dimensions.)
! NOTICE
If the unit gasketing or insulation must be replaced, ensure the material used is compliant with the two agency requirements listed.
1. Insulation and adhesives shall meet NFPA 90.1 requirements for flame spread and smoke generation.
2. Cabinet insulation shall meet ASHRAE Standard 62.2.

Receiving and Installation
Step 1 Check Equipment
Identify Unit
The unit model number and serial number are printed on the unit informative plate. Check this information against shipping papers.
Inspect Shipment
Inspect for shipping damage before removing packaging materials. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any damage incurred in transit. Check all items against shipping list. Immediately notify the nearest equipment distribution office if any item is missing. To prevent loss or damage, leave all parts in original packages until installation.
If the unit is to be mounted on a curb in a downflow application, review Step 7 to determine which method is to be used to remove the downflow panels before rigging and lifting into place. The panel removal process may require the unit to be on the ground.
Step 2 Provide Unit Support
IMPORTANT: The unit must be secured to the curb by installing screws through the bottom of the curb flange and into the unit base rails. When installing large base units onto the common curb, the screws must be installed before allowing the full weight of the unit to rest on the curb. A minimum of six screws are required for large base units. Failure to secure unit properly could result in an unstable unit. See Warning near Rigging/Lifting information and accessory curb instructions for more details.
For hurricane tie downs, contact distributor for details and PE (Professional Engineering) Certificate if required.
Roof Curb
Install accessory roof curb in accordance with instructions shipped with curb (See Fig. 4). Install insulation, cant strips, roofing, and flashing. Ductwork must be attached to curb.
IMPORTANT: The gasketing of the unit to the roof curb is critical for a water tight seal. Install gasketing material supplied with the roof curb. Improperly applied gasketing also can result in air leaks and poor unit performance.
Curb should be level to within 1/4 in. (6.35 mm) (See Fig. 6). This is necessary for unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required.
Installation on older “G” series roof curbs.
Two accessory kits are available to aid in installing a new “G” series unit on an old “G” roof curb.
1. Accessory kit number CPADCURB001A00, (small chassis) and accessory kit number CPADCURB002A00, (large chassis) includes roof curb adapter and gaskets for the perimeter seal and duct openings. No additional modifications to the curb are required when using this kit.
2. An alternative to the adapter curb is to modify the existing curb by removing the outer horizontal flange and use accessory kit number CPGSKTKIT001A00 which includes spacer blocks (for easy alignment to existing curb) and gaskets for the perimeter seal and duct openings. This kit is used when existing curb is modified by removing outer horizontal flange.

PHR5: Installation Instructions
! CAUTION
UNIT/STRUCTURAL DAMAGE HAZARD Failure to follow this caution may result in property damage. Ensure there is sufficient clearance for saw blade when cutting the outer horizontal flange of the roof curb so there is no damage to the roof or flashing. Slab Mount Place the unit on a solid, level pad that is at least 2 in. (51 mm) above grade. The pad should extend approximately 2 in. (51 mm) beyond the casing on all 4 sides of the unit (See Fig. 7). Do not secure the unit to the pad except when required by local codes.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 3

PHR5: Installation Instructions

Fig. 2 PHR5 24 Unit Dimensions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 4

A230206

PHR5: Installation Instructions

Fig. 3 PHR5 36-60 Unit Dimensions

A230207

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 5

PHR5: Installation Instructions

SMALL/COMMON CURB

SUPPLY AIR

SMALL BASE UNIT

RETURN AIR

LARGE BASE UNIT

LARGE CURB

UNIT PLACEMENT ON COMMON CURB
SMALL OR LARGE BASE UNIT
A180216

UNIT SIZE

CATALOG NUMBER

Small or Large
Large

CPRFCURB011B00 CPRFCURB013B00

A IN. (mm)
14 (356)
14 (356)

B (small/common
base) IN. (mm)* 10 (254)
14 (356)

B (large base)
IN. (mm)*
14 (356)

C IN. (mm)
16 (406)

D IN. (mm)
47.8 (1214)

E IN. (mm)
32.4 (822) 43.9 (1116)

F IN. (mm)

G IN. (mm)

30.6 (778) 2.7 (69)
42.2 (1072)

H IN. (mm)
46.1 (1170)

*. Part Number CPRCURB011B00 can be used on both small and large basepan units. The cross supports must be located based on whether the unit is a small basepan or a large basepan.

NOTES: 1. Roof curb must be set up for unit being installed. 2. Seal strip must be applied, as required, to unit being installed. 3. Roof curb is made of 16-gauge steel. 4. Attach ductwork to curb (flanges of duct rest on curb). 5. Insulated panels: 1-in. (25.4 mm) thick fiberglass 1 lb. density.

Fig. 4 Roof Curb Dimensions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 6

PHR5: Installation Instructions

CAUTION – NOTICE TO RIGGERS PRUDENCE – AVIS AUX MANIPULATEUR
ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D’ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition

MINIMUM HEIGHT: 36″ (914.4 mm) HAUTEUR MINIMUM

DUCTS

UNIT HEIGHT HAUTEUR D’UNITÉ

SEAL STRIP MUST BE IN PLACE BEFORE PLACING UNIT ON ROOF CURB

BANDE SCELLANT DOIT ÊTRE EN PLACE AVANT DE PLACER L’UNITÉ SUR LA BASE DE TOIT

SEE DETAIL A VOIR DÉTAIL A

DETAIL A VOIR DÉTAIL A
Standard Copper Tube Aluminum Fin

50CY502286 2.0

A09051

SMALL CABINET

Unit*

Rigging Weight

347

157

Unit* Rigging Weight

LARGE CABINET

420

191

462

210

511

232

*. See dimensional drawing for corner weighs.
Step 3 Provide Clearances

Fig. 5 Unit Suggested Rigging
Step 5 Rig and Place Unit

The required minimum service clearances are shown in Fig. 2 and Fig. 3. Adequate ventilation and outdoor air must be provided. The outdoor fan draws air through the outdoor coil and discharges it through the top fan grille. Be sure that the fan discharge does not recirculate to the outdoor coil. Do not locate the unit in either a corner or under an overhead obstruction. The minimum clearance under a partial overhang (such as a normal house overhang) is 48 in. (1219 mm) above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48 in. (1219 mm)
IMPORTANT: Do not restrict outdoor airflow. An air restriction at either the outdoor-air inlet or the fan discharge may be detrimental to compressor life.
Do not place the unit where water, ice, or snow from an overhang or roof will damage or flood the unit. Do not install the unit on carpeting or other combustible materials. Slab-mounted units should be at least 2 in. (51 mm) above the highest expected water and runoff levels. Do not use unit if it has been under water.
Step 4 Field-Fabricate Ductwork

Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roofs, elevated structures, etc.).
Only trained, qualified crane operators and ground support staff should handle and install this equipment.
When working with this equipment, observe precautions in the literature, on tags, stickers, and labels attached to the equipment, and any other safety precautions that might apply.
Training for operators of the lifting equipment should include, but not be limited to, the following:
1. Application of the lifter to the load, and adjustment of the lifts to adapt to various sizes or kinds of loads.
2. Instruction in any special operation or precaution.
3. Condition of the load as it relates to operation of the lifting kit, such as balance, temperature, etc.
Follow all applicable safety codes. Wear safety shoes and work gloves.

Secure all ducts to roof curb and building structure on vertical discharge units. Do not connect ductwork to unit. For horizontal applications, unit is provided with flanges on the horizontal openings. All ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.

MAXIMUM ALLOWABLE

DIFFERENCE in. (mm)

A-B

B-C

A-C

Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier. If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. See unit rating plate for any required clearances around ductwork. Cabinet return-air static shall not exceed -.25 IN. W.C.

1/4 (6.35)

Fig. 6 Unit Leveling Tolerances

A07925

Inspection

Prior to initial use, and at monthly intervals, all rigging shackles, clevis pins, and straps should be visually inspected for any damage, evidence of wear, structural deformation, or cracks. Particular attention should be

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 7

PHR5: Installation Instructions
paid to excessive wear at hoist hooking points and load support areas. Materials showing any kind of wear in these areas must not be used and should be discarded.
! WARNING
UNIT FALLING HAZARD Failure to follow this warning could result in personal injury or death. Never stand beneath rigged units or lift over people.
1. Leave top shipping skid on the unit for use as a spreader bar to prevent the rigging straps from damaging the unit. If the skid is not available, use a spreader bar of sufficient length to protect the unit from damage.
! WARNING
PROPERTY DAMAGE HAZARD Failure to follow this warning could result in personal injury. When straps are taut, the clevis should be a minimum of 36 in. (914 mm) above the unit top cover.
Rigging/Lifting of Unit (See Fig. 5)
! WARNING
UNIT FALLING HAZARD Failure to follow this warning could result in personal injury or death. Large base units must be secured to common curb before allowing full weight of unit to rest on curb. Install screws through curb into unit base rails while rigging crane is still supporting unit.
1. Lifting holes are provided in base rails as shown. 2. Attach shackles, clevis pins, and straps to the base rails of the unit.
Be sure materials are rated to hold the weight of the unit (See Fig. 5). 3. Attach a clevis of sufficient strength in the middle of the straps. Adjust the clevis location to ensure unit is lifted level with the ground. After the unit is placed on the roof curb or mounting pad, remove the top skid.

OPTIONAL RETURN
AIR OPENING

OPTIONAL SUPPLY AIR OPENING

ß (50.8mm)

EVAP. COIL

COND. COIL

Fig. 7 Slab Mounting Detail

A07926

Step 6 Connect Condensate Drain

NOTE: When installing condensate drain connection be sure to comply with local codes and restrictions.

This unit disposes of condensate water through a 3/4 in. NPT fitting which exits through the base on the evaporator coil access side. See Fig. 2 and Fig. 3 for location.

Condensate water can be drained directly onto the roof in rooftop installations (where permitted) or onto a gravel apron in ground level

installations. Install a field-supplied 2-in. (51 mm) condensate trap at end of condensate connection to ensure proper drainage. Make sure that the outlet of the trap is at least 1 in. (25 mm) lower than the drain pan condensate connection to prevent the pan from overflowing (See Fig. 8). When using a gravel apron, make sure it slopes away from the unit. Connect a drain tube using a minimum of 3/4 -in. PVC or 3/4 -in. copper pipe (all field-supplied) at the outlet end of the 2-in. (51 mm) trap. Do not undersize the tube. Pitch the drain tube downward at a slope of at least 1-in. (25 mm) for every 10 ft (3.1 m) of horizontal run. Be sure to check the drain tube for leaks. Prime trap at the beginning of the cooling season start-up.
TRAP OUTLET
1-in. (25 mm) min.
2-in. (51 mm) min.

Fig. 8 Condensate Trap

A09052

Step 7 Install Duct Connections

The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of non-residence type air conditioning and ventilating systems, NFPA 90A or residence type, NFPA 90B and/or local codes and ordinances.

Select and size ductwork, supply-air registers, and return air grilles according to ASHRAE (American Society of Heating, Refrigeration, and Air Conditioning Engineers) recommendations. The unit has duct flanges on the supply- and return-air openings on the side of the unit.

When designing and installing ductwork, consider the following:

1. All units should have field-supplied filters or accessory filter rack installed in the return-air side of the unit. Recommended sizes for filters are shown in Table 1.

2. Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air performance.

IMPORTANT: Use flexible connectors between ductwork and unit to prevent transmission of vibration. Use suitable gaskets to ensure weather-tight and airtight seal. When electric heat is installed, use fireproof canvas (or similar heat resistant material) connector between ductwork and unit discharge connection. If flexible duct is used, insert a sheet metal sleeve inside duct. Heat resistant duct connector (or sheet metal sleeve) must extend 24-in. (610 mm) from electric heater element.

3. Size ductwork for cooling air quantity (cfm). The minimum air quantity for proper electric heater operation is listed in Table 2. Heater limit switches may trip at air quantities below those recommended.

4. Seal, insulate, and weatherproof all external ductwork. Seal, insulate and cover with a vapor barrier all ductwork passing through conditioned spaces. Follow latest Sheet Metal and Air Conditioning Contractors National Association (SMACNA) and Air Conditioning Contractors Association (ACCA) minimum installation standards for residential heating and air conditioning systems.

5. Secure all ducts to building structure. Flash, weatherproof, and vibration-isolate duct openings in wall or roof according to good construction practices.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 8

PHR5: Installation Instructions
Configuring Units for Downflow (Vertical) Discharge
! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before performing service or maintenance operations on the system, turn off main power to unit and install lockout tag. There may be more than one disconnect switch.
1. Open all electrical disconnects and install lockout tag before starting any service work.
2. Remove horizontal (metal) ductcovers to access vertical (downflow) discharge duct knockouts in unit basepan. (See Fig. 9.)
To remove downflow return and supply knockout covers, break front and right side connecting tabs with a screwdriver and hammer. Push cover down to break rear and left side tabs.
NOTE: These panels are held in place with tabs similar to an electrical knockout. Reinstall horizontal duct covers (Fig. 9) shipped on unit from factory. Insure openings are air and watertight.
NOTE: The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of nonresidence-type air conditioning and ventilating systems, NFPA 90A or residence-type, NFPA 90B; and/or local codes and ordinances.
Adhere to the following criteria when selecting, sizing, and installing the duct system:
1. Units are shipped for side shot installation.
2. Select and size ductwork, supply-air registers, and return-air grilles according to American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) recommendations.
3. Use flexible transition between rigid ductwork and unit to prevent transmission of vibration. The transition may be screwed or bolted to duct flanges. Use suitable gaskets to ensure weather-tight and airtight seal.
4. All units must have field-supplied filters or accessory filter rack installed in the return-air side of the unit. Recommended sizes for filters are shown in Table 1.
5. Size all ductwork for maximum required airflow (either heating or cooling) for unit being installed. Avoid abrupt duct size increases or decreases or performance may be affected.
6. Adequately insulate and weatherproof all ductwork located outdoors. Insulate ducts passing through unconditioned space, and use vapor barrier in accordance with latest issue of Sheet Metal and Air Conditioning Contractors National Association (SMACNA) and Air Conditioning Contractors of America (ACCA) minimum installation standards for heating and air conditioning systems. Secure all ducts to building structure.
7. Flash, weatherproof, and vibration-isolate all openings in building structure in accordance with local codes and good building practices.

Horizontal Duct Covers

A09076

Fig. 9 Supply and Return Duct Opening
Step 8 Install Electrical Connections

A09093

! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. The unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of an electrical wire connected to the unit ground screw in the control compartment, or conduit approved for electrical ground when installed in accordance with NFPA 70 (NEC) (latest edition) (in Canada, Canadian Electrical Code CSA C22.1) and local electrical codes.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 9

PHR5: Installation Instructions

! CAUTION
UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the unit being installed.
1. Make all electrical connections in accordance with NFPA 70 (NEC) (latest edition) and local electrical codes governing such wiring. In Canada, all electrical connections must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram.
2. Use only copper conductor for connections between field-supplied electrical disconnect switch and unit. DO NOT USE ALUMINUM WIRE.
3. Be sure that high-voltage power to unit is within operating voltage range indicated on unit rating plate. On 3-phase units, ensure phases are balanced within 2 percent. Consult local power company for correction of improper voltage and/or phase imbalance.
4. Do not damage internal components when drilling through any panel to mount electrical hardware, conduit, etc.
5. Route field power supply(s) away from areas that could be damaged by lawn and garden equipment or other accidental damage.
High-Voltage Connections The unit must have a separate electrical service with a field-supplied, waterproof disconnect switch mounted at, or within sight from the unit. Refer to the unit rating plate, NEC and local codes for maximum fuse/circuit breaker size and minimum circuit amps (ampacity) for wire sizing.
The field-supplied disconnect may be mounted on the unit over the high-voltage inlet hole when the standard power and low-voltage entry points are used. See Fig. 2 and Fig. 3 for acceptable location.
See unit wiring label (Fig. 14 – Fig. 17) and Fig. 10 for reference when making high voltage connections. Proceed as follows to complete the high-voltage connections to the unit.
Single phase units:
1. Run the high-voltage (L1, L2) and ground lead into the control box.
2. Connect ground lead to chassis ground connection.
3. Locate the black and yellow wires connected to the line side of the contactor.
4. Connect field L1 to black wire from connection 11 of the compressor contactor.
5. Connect field wire L2 to yellow wire from connection 23 of the compressor contactor.

Fig. 10 High- and Control-Voltage Connections A13176 Three-phase units:
1. Run the high-voltage (L1, L2, L3) and ground lead into the control box.
2. Connect ground lead to chassis ground connection.
3. Locate the black and yellow wires connected to the line side of the contactor.
4. Connect field L1 to black wire from connection 11 of the compressor contactor.
5. Connect field wire L3 to yellow wire from connection 13 of the compressor contactor.
6. Connect field wire L2 to blue wire from compressor. Special Procedures for 208-V Operation
! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before installing or servicing system, always turn off main power to system and install lockout tag. With disconnect switch open, move black wire from transformer (3/16 in.)(4.8 mm) terminal marked 230 to terminal marked 208. This retaps transformer to primary voltage of 208 vac.
Control Voltage Connections NOTE: Do not use any type of power-stealing thermostat. Unit control problems may result.
Use no. 18 American Wire Gage (AWG) color-coded, insulated (35°C minimum) wires to make the control voltage connections between the thermostat and the unit. If the thermostat is located more than 100 ft (30.5 m) from the unit (as measured along the control voltage wires), use no. 16 AWG color-coded, insulated (35° C minimum) wires. Standard Connection Locate the nine low voltage thermostat leads (eight for 460 VAC models) in 24 volt splice box. See Fig. 10 for connection diagram. Run the low-voltage leads from the thermostat, through the control wiring inlet hole grommet (Fig. 2 and Fig. 3), and into the low-voltage splice box. Provide a drip loop before running wires through panel. Secure and strain relief all wires so that they do not interfere with operation of unit.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 10

PHR5: Installation Instructions

If an accessory electric heater is installed, low voltage leads from heater must be connected to factory supplied control leads from Indoor Fan Board P4 connector.
NOTE: If the unit 24V wires do not have a matching receptacle, cut the 24V wires from the electric heater plug, strip the ends, and wire nut together to match the schematic connections. If the electric heater 24V wires do not have a matching plug, cut the 24V wires from the unit receptacle, strip the ends, and wire nut together to match the schematic connections.
Factory wires are provided for electric heat staging W1 and W2 (W2 and W3 on IFB). If room thermostat has only one stage of supplemental heat,

connect white and violet wires shown in Fig. 10 to second stage heat field wire.
Some electric heaters have four control wires (plus common wire). Consult unit wiring diagram and electric heater wiring diagram for additional details.
Transformer Protection
The transformer is of the energy-limiting type, however a direct short will likely blow a secondary fuse. If an overload or short is present, correct overload condition and check for blower fuse on Indoor Fan Board. Replace fuse as required with correct size and rating.

Table 1 Physical Data

UNIT SIZE NOMINAL CAPACITY (ton)
SHIPPING WEIGHT lb. SHIPPING WEIGHT (kg)
COMPRESSORS Quantity
REFRIGERANT (R-410A) Quantity lb Quantity (kg)
REFRIGERANT METERING DEVICE ORIFICE ID (in.) ID (mm)
OUTDOOR COIL Rows…Fins/in. Face Area (sq ft)
OUTDOOR FAN Nominal Cfm Diameter in. Diameter (mm)
Motor Hp (Rpm) INDOOR COIL Rows…Fins/in. Face Area (sq ft) INDOOR BLOWER Nominal Low Stage Cooling Airflow (Cfm) Nominal High Stage Cooling Airflow (Cfm) Size in.
Size (mm.) Motor HP (RPM) HIGH-PRESSURE SWITCH (psig) Cut-out Reset (Auto) LOW-PRESSURE SWITCH (psig) cut-out Reset (auto) RETURN-AIR FILTERS* Throwaway Size in. Throwaway Size (mm)

24 2 347 157
8.2 3.7
.032 (2) 0.81 (2)
1…21 18.8
2100 24
609.6 1/12 (800)
3…17 3.7 675 855
10×10 254×254 1/2 (1050)
20x20x1 508x508x25

420

462

191

210

Scroll

10.0

12.0

4.5

5.4

TXV, Indoor TXV

.042 (2) 1.07 (2)

2…21 13.6

2…21 17.5

3000 26
660.4 1/5 (810)

3300 26
660.4 1/5 (810)

3…17 4.7 900 1200
11×10 279.4×254 3/4 (1000)

3…17 5.7 1200 1600
11×10 279.4×254 1.0 (1075) 650 +/- 15 420 +/- 25 20 +/- 5 45 +/- 5

60 5 511 232
16.6 7.5
.052 (2) 1.32 (2)
2…21 23.3
3600 26
660.4 1/5 (810)
4…17 5.7 1400 1750
11×10 279.4×254 1.0 (1075)

24x30x1 610x762x25

24x36x1 610x914x25

*. Required filter sizes shown are based on the larger of the AHRI (Air Conditioning Heating and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for throwaway type or 450 ft/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. W.C. If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity.

SIZE Cfm

Table 2 Minimum Airflow for Safe Electric Heater Operation (CFM)

850

1200

1600

60 1750

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 11

PHR5: Installation Instructions
Pre-Start-up
! WARNING
ENVIRONMENTAL, FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death and/or property damage.
1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system.
2. Relieve and recover all refrigerant from system before touching or disturbing compressor plug if refrigerant leak is suspected around compressor terminals.
3. Never attempt to repair soldered connection while refrigerant system is under pressure.
4. Do not use torch to remove any component. System contains oil and refrigerant under pressure.
5. To remove a component, wear protective goggles and proceed as follows: a. Shut off electrical power to unit and install lockout tag. b. Relieve and reclaim all refrigerant from system using both highand low-pressure ports. c. Cut component connecting tubing with tubing cutter and remove component from unit. d. Carefully unsweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch flame.
Use the Start-Up Checklist supplied at the end of this book and proceed as follows to inspect and prepare the unit for initial start-up:
1. Remove all access panels (see Fig. 20).
2. Read and follow instructions on all DANGER, WARNING, CAUTION, and INFORMATION labels attached to, or shipped with unit.
3. Make the following inspections: a. Inspect for shipping and handling damages, such as broken lines, loose parts, disconnected wires, etc. b. Inspect for oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak test all refrigerant tubing connections using electronic leak detector, or liquid-soap solution. If a refrigerant leak is detected, see following Check for Refrigerant Leaks section. c. Inspect all field- and factory-wiring connections. Be sure that connections are completed and tight. Ensure wires do not touch refrigerant tubing or sharp sheet metal edges. d. Inspect coil fins. If damaged during shipping and handling, carefully straighten fins with a fin comb.
4. Verify the following conditions: a. Make sure that outdoor-fan blade is correctly positioned in fan orifice. b. Make sure that air filter(s) is in place. c. Make sure that condensate drain pan and trap are filled with water to ensure proper drainage. d. Make sure that all tools and miscellaneous loose parts have been removed
5. Each unit system has two (2) Schrader-type ports, one low-side Schrader fitting located on the suction line, and one high-side Schrader fitting located on the compressor discharge line. Be sure that caps on the ports are tight.
Start-up Step 1 Check Cooling and Heating Control Operation
Start and check the unit for proper control operation as follows:

1. Place room thermostat SYSTEM switch or MODE control in OFF position. Observe that blower motor starts when FAN mode is placed in FAN ON position and shuts down when FAN MODE switch is placed in AUTO position.
2. Thermostat: On a typical two stage thermostat, when the room temperature rises 1 or 2 degrees above the cooling control setting of the thermostat, the thermostat completes the circuit between thermostat terminal R and terminals Y1, and G. These completed circuits through the thermostat connect the contactor coil (C) (through unit wire Y1) and indoor fan board (through unit wire G) across the 24-v. secondary of transformer (TRAN). On a typical two stage thermostat, when the room temperature is several degrees above the cooling control setting of the thermostat, the thermostat completes the circuit between terminal R and terminals Y1, Y2, and G.
3. If your unit contains accessory electric heat, place system switch or MODE control in HEAT position. Set control above room temperature. Observe that the indoor blower is operating and warm air is flowing through the supply air vents inside your home. Observe that the heating cycle shuts down when the control setting is satisfied. If your unit does not contain accessory electric heat and you would like to obtain it, please contact your local dealer for more information.
4. When using an automatic changeover room thermostat place both SYSTEM or MODE control and FAN mode stitches in AUTO positions. Observe that unit operates in Cooling mode when temperature control is set to “call for Cooling” (below room temperature).
NOTE: Once the compressor has started and then has stopped, it should not be started again until 5 minutes have elapsed.
Step 2 Check for Refrigerant Leaks
! WARNING
EXPLOSION HAZARD Failure to follow this warning could result in death, serious personal injury, and/or property damage. Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.
Proceed as follows to locate and repair a refrigerant leak and to charge the unit:
1. Locate leak and make sure that refrigerant system pressure has been relieved and reclaimed from both high-and low-pressure ports.
2. Repair leak following Refrigerant Service procedures.
NOTE: Install a filter drier whenever the system has been opened for repair.
3. Add a small charge of R-410A refrigerant vapor to system and leak-test unit.
4. Recover refrigerant from refrigerant system and evacuate to 500 microns if no additional leaks are found.
5. Charge unit with R-410A refrigerant, using an electronic scale. Refer to unit rating plate for required charge.
Step 3 Start-Up Adjustments
Complete the required procedures given in the Pre-Start-Up section before starting the unit. Do not jumper any safety devices when operating the unit. Do not operate the unit in cooling mode when the

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 12

PHR5: Installation Instructions
outdoor temperature is below 40°F (4°C) (unless accessory low-ambient kit is installed).
IMPORTANT: Three-phase, scroll compressors are direction oriented. Unit must be checked to ensure proper compressor 3-phase power lead orientation. If not corrected within 5 minutes, the internal protector will shut off the compressor. The 3-phase power leads to the unit must be reversed to correct rotation. When turning backwards, the difference between compressor suction and discharge pressures may be near zero.
Checking and Adjusting Refrigerant Charge
! WARNING
EXPLOSION HAZARD Failure to follow this warning could result in death, serious personal injury, and/or property damage. Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.
The refrigerant system is fully charged with R-410A refrigerant and is tested and factory sealed.
NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-410A charge.
A subcooling charging chart is attached to the inside of the compressor access panel. The chart includes the required liquid line temperature at given discharge line pressures and outdoor ambient temperatures.
An accurate thermocouple- or thermistor-type thermometer, and a gauge manifold are required when using the subcooling charging method for evaluating the unit charge. Do not use mercury or small dial-type thermometers because they are not adequate for this type of measurement.
NOTE: Allow system to operate on high stage cooling for a minimum of 15 minutes before checking or adjusting refrigerant charge.
IMPORTANT: When evaluating the refrigerant charge, an indicated adjustment to the specified factory charge must always be very minimal. If a substantial adjustment is indicated, an abnormal condition exists somewhere in the cooling system, such as insufficient airflow across either coil or both coils.
1. Remove caps from low- and high-pressure service fittings.
2. Using hoses with valve core depressors, attach low- and high-pressure gauge hoses to low- and high-pressure service fittings, respectively.
3. Start unit and let run until system pressures stabilize.
4. Measure and record the following: a. Outdoor ambient-air temperature (°F [°C] db). b. Liquid line temperature (°F [°C]) at TXV. c. Discharge (high-side) pressure (psig). d. Suction (low-side) pressure (psig) (for reference only).
5. Using Cooling Charging Charts (See Fig. 18) compare outdoor-air temperature (°F [°C] db) with the discharge line pressure (psig) to determine desired system operating liquid line temperature (See Fig. 18).
6. Compare actual liquid line temperature with desired liquid line temperature. Using a tolerance of ±2°F (±1.1°C), add refrigerant if actual temperature is more than 2°F (1.1°C) higher than proper liquid line temperature, or remove refrigerant if actual temperature is more than 2°F (1.1°C) lower than required liquid line temperature.
NOTE: If the problem causing the inaccurate readings is a refrigerant leak, refer to Check for Refrigerant Leaks section.

Indoor Airflow and Airflow Adjustments
! WARNING
UNIT OPERATION HAZARD Failure to follow this caution may result in unit damage. For cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 Btuh of rated cooling capacity. For heating operation, the airflow must produce a temperature rise that falls within the range stamped on the unit rating plate.

NOTE: Be sure that all supply-air and return-air grilles are open, free from obstructions, and adjusted properly.
! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Disconnect electrical power to the unit and install lockout tag before changing blower speed.

This unit has independent fan speeds for low stage cooling and high stage cooling. In addition, 208/230 VAC models have the field-selectable capability to run enhanced dehumidification (‘DEHUM’) speed in high stage cooling (as low as 320 CFM per ton). Coupled with the improved dehumidification associated with low stage cooling, the DEHUM speed allows for a complete dehumidification solution independent of cooling stage.

Table 3 shows the operation modes and the associated fan speeds with each mode for all models:

Table 3 Operation Modes and Fan Speeds

208/230 VAC Models

Operation Mode
Low Stage Cooling/Heat Pump High Stage Cooling/Heat Pump
High Stage Enhanced Dehumidification Cooling
Continuous Fan

Fan Speed Tap Connection LOW HIGH
DH
LOW

460 VAC Models
Operation Mode
Low Stage Cooling/Heat Pump High Stage Cooling/Heat Pump
Continuous Fan

Fan Speed Tap Connection LOW HIGH LOW

! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Disconnect electrical power to the unit and install lockout tag before changing blower speed.

The standard evaporator fan motor is factory set to provide 5 different fan speeds to choose from for the various operation modes (see Table 4). All models are factory-shipped for nominal high stage and low stage cooling airflow operation at minimum external static pressure. See Table 2.
Table 4 Color Coding for Indoor Fan Motor Leads
Black = High Speed Orange = Med-High Speed
Red = Med Speed Pink = Med-Low Speed
Blue = Low Speed

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 13

PHR5: Installation Instructions
Selection of Proper Fan Speeds for Operation Modes:
Low Stage Cooling/Heat Pump: Using Table 5 – Table 6, find the external static pressure drops for wet coil, economizer, and filter, and add them to dry coil measured on the system. Using this total static pressure, look up Table 5 to find the airflows available at the total static pressure. For 208/230 VAC models, connect the chosen fan speed wire to “LO COOL” connection on the IFB Board (see Fig. 11). For 460 VAC models, connect the chosen fan speed wire to “LOW” connection on the IFB (see Fig. 11).
High Stage Cooling/Heat Pump: Using Table 5 – Table 6, find the external static pressure drops for wet coil, economizer, and filter, and add them to dry coil measured on the system. Using this total static pressure, use Table 5 to find the airflows available at the total static pressure. The speed chosen must provide airflow of between 350 to 450 CFM per ton of cooling. For 208/230 VAC models, connect the chosen fan speed wire to “HI COOL” connection on the IFB Board (See Fig. 11). For 460 VAC models, connect the chosen fan speed wire to “HIGH” connection on the IFB (see Fig. 11).
High Stage Enhanced Dehumidification Cooling (208/230 VAC Models): Using the total static pressure for selecting the high stage cooling speed, look up Table 5 to find lower speed/airflows available at that total static pressure. All airflows highlighted in Table 5 are acceptable for the Dehum speed. The speed chosen must provide airflow of between 320 to 400 CFM per ton of cooling. To activate the high stage enhanced dehumidification cooling mode, the shunt jumper must be moved from the “No DH” to the “DH” selection. (See Fig. 11, close up.) For 208/230 VAC models, connect the chosen fan speed wire to “DHUM” connection on the IFB Board (see Fig. 11).
Continuous Fan: Continuous fan speed is the same speed as Low Stage Cooling.
Using the Same Fan Speed for More than One Mode: Some fan speeds are ideal for more than one mode of operation. It is permissible to use a field-supplied jumper wire to connect one speed tap wire to two or more speed connections on the Interface Fan Board (IFB). Jumper wires must use 18 AWG wire with at least 2/64″ insulation.
Sequence of Operation a. Continuous Fan (1.) Thermostat closes circuit R to G energizing the blower motor for continuous fan. The indoor fan is energized on low speed. b. Cooling Mode (1.) Low Stage: Thermostat closes R to G, R to Y1, and R to O. The compressor and indoor fan are energized on low speed. The outdoor fan is also energized (2.) High Stage: Thermostat closes R to G, R to Y1, R to Y2, and R to O. The compressor and indoor fan are energized on high speed. The outdoor fan is also energized. c. Electric Heating Mode (1.) Thermostat closes circuit R to W2 or W3, and R to G. There are no on or off delays. d. Heat Pump Heating (1.) Low Stage: Thermostat closes R to G, R to Y1. The compressor and indoor fan are energized on low speed. The outdoor fan is also energized (2.) High Stage: Thermostat closes R to G, R to Y1, R to Y2. The compressor and indoor fan are energized on high speed. The outdoor fan is also energized. e. Heat Pump Heating with Auxiliary Heat (1.) Thermostat closes circuits R to G, R to Y and R to W/W1 or W2. The compressor, indoor and outdoor fans are energized, as well as the electric heat relays. f. Defrost Mode The defrost mode is automatically energized by the defrost board during heating mode. The defrost board energizes “O” (reversing

valve) and “W2” (electric heat). It also de-energizes the outdoor fan. When defrost is complete, unit will return to heating mode. If room thermostat is satisfied during defrost, unit will shut down and restart in defrost on next call for heat.
Step 4 Defrost Control
Demand Defrost Mode
The defrost mode is factory set to an initial 60-minute time interval. It may also be adjusted to an initial interval of 30, 90, or 120 minutes. During operation, the control optimizes current defrost time based on the
previous defrost interval and previous defrost period. If the previous defrost period is less than 2 minutes for two consecutive defrost cycles the control will lengthen the defrost interval by 15 minutes, up to a maximum of 120 minutes or 30 minutes greater than the original setpoint, whichever comes first. If the previous defrost period is more than 5 minutes for two consecutive defrost cycles the control will shorten the defrost interval by 15 minutes, down to a minimum of 30 minutes or 30 minutes from the original setpoint, whichever is first. After the defrost condition is satisfied, or after a maximum of 10 minutes in defrost mode, the unit will resume normal heating operation.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 14

PHR5: Installation Instructions

STD DEHUM
3AMP 24VAC/R CDM/C

HIGH
QC5

LOW
QC4

COM
QC3

KL DCR QCR

07 09 0L0 08 ALO R13 C8 R11 Q1 Q3

C D2
QC1
AL2

C9 C4

RL 01

QIL Z2 06 04 D5 D3

G2 A7 R9 AB A15
Z1 U1
C3

C0 F1

RL4

C7 JWZ

JW5

R3 R5 R6

R2 QCB

P2 JW3

P3 SDL

R W2 Y C

W3 W3 W2 W2 C

JW4

SSTZ-8

Y2 DH

Y1 Y

460 VAC Models

A09059

208/230 VAC Models

A12571
Fig. 11 Interface Fan Board (IFB)

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 15

PHR5: Installation Instructions

Fig. 12 Typical Heat Pump Operation, Heating Mode

C03012

Fig. 13 Typical Heat Pump Operation, Cooling Mode

C03011

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 16

PHR5: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 17

Table 5 Dry Coil Air Delivery* – Horizontal and Downflow Discharge Sizes 24-60 208-230VAC – 1 Phase/3 Phase

Unit Size

Motor Speed

Tap

0.1

Low

Blue

CFM 747 BHP 0.10

Med-Low**

Pink

CFM 864 BHP 0.15

024

Medium

Red

CFM BHP

1063 0.21

Med-High

Orange

CFM BHP

1134 0.27

High

Black

CFM BHP

1236 0.33

Low**

Blue

CFM BHP

1028 0.12

Med-Low

Pink

CFM BHP

1164 0.16

036

Medium

Red

CFM BHP

1391 0.25

Med-High

Orange

CFM BHP

1423 0.26

High

Black

CFM BHP

1511 0.30

Low

Blue

CFM 945 BHP 0.11

Med-Low**

Pink

CFM BHP

1297 0.23

048

Medium

Red

CFM BHP

1799 0.50

Med-High

Orange

CFM BHP

1936 0.63

High

Black

CFM BHP

1966 0.67

Low

Blue

CFM 897 BHP 0.10

Med-Low

Pink

CFM BHP

1401 0.27

060

Medium**

Red

CFM BHP

1507 0.32

Med-High

Orange

CFM BHP

1943 0.63

High

Black

CFM BHP

1969 0.66

Shaded areas indicate speed/static combinations that are permitted for dehumidification speed.

* – Air delivery values are without air filter and are for dry coil (See Wet Coil Pressure Drop Table).

** – Factory Supplied Low Stage Cooling

– Factory Supplied High Stage Cooling

NOTE: Deduct field-supplied air filter pressure drop and wet coil pressure drop to obtain static pressure available for ducting.

0.2 663 0.11 790 0.14 994 0.22 1077 0.27 1187 0.34 964 0.13 1107 0.17 1340 0.26 1377 0.27 1466 0.31 885 0.12 1253 0.24 1759 0.51 1901 0.64 1933 0.68 829 0.11 1364 0.28 1472 0.34 1905 0.64 1939 0.67

0.3 575 0.11 716 0.14 929 0.23 1020 0.28 1133 0.35 901 0.14 1051 0.18 1294 0.27 1331 0.28 1420 0.33 820 0.12 1207 0.24 1725 0.52 1864 0.65 1903 0.70 764 0.11 1317 0.30 1434 0.35 1867 0.66 1909 0.69

ESP (in. W.C.)

0.4

0.5

0.6

473

370

289

0.12

0.13

637

552

468

0.15

0.16

866

803

741

0.23

0.24

0.25

962

904

842

0.29

0.30

1079 1026

969

0.35

0.36

0.37

838

774

711

0.15

0.16

995

939

882

0.19

0.20

0.21

1247 1199 1151

0.28

0.29

0.30

1288 1240 1192

0.29

0.30

0.32

1378 1338 1293

0.34

0.35

0.36

757

696

638

0.13

0.14

0.15

1163 1115 1066

0.26

0.27

1676 1625 1584

0.54

0.55

0.57

1831 1798 1767

0.66

0.68

0.69

1872 1842 1811

0.71

0.73

0.74

699

641

583

0.12

0.13

0.14

1271 1228 1189

0.31

0.32

1388 1346 1307

0.36

0.37

0.38

1818 1787 1743

0.67

0.68

0.69

1881 1852 1817

0.71

0.72

0.74

0.7 179 0.13 366 0.17 673 0.25 777 0.31 911 0.38 647 0.17 824 0.22 1104 0.31 1147 0.33 1245 0.37 579 0.16 1018 0.28 1546 0.58 1736 0.70 1782 0.75 521 0.14 1143 0.33 1270 0.39 1705 0.70 1781 0.75

0.8 NA NA 295 0.17 610 0.26 704 0.32 849 0.39 588 0.18 767 0.22 1054 0.32 1097 0.34 1200 0.38 527 0.16 974 0.29 1509 0.59 1702 0.71 1751 0.77 463 0.15 1097 0.34 1227 0.40 1664 0.71 1748 0.76

0.9 NA NA 203 0.18 528 0.26 634 0.32 785 0.39 532 0.19 711 0.23 1003 0.33 1047 0.35 1156 0.39 480 0.17 931 0.30 1473 0.61 1670 0.73 1718 0.78 407 0.16 1054 0.35 1183 0.41 1624 0.73 1710 0.77

1 NA NA NA NA 453 0.27 565 0.33 713 0.39 484 0.19 656 0.24 946 0.34 998 0.36 1109 0.40 429 0.18 888 0.31 1437 0.62 1633 0.74 1619 0.74 356 0.16 1012 0.36 1142 0.42 1587 0.74 1613 0.73

PHR5: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 18

Unit Size 24 36 48 60

Table 6 Wet Coil Pressure Drop (IN. W.C.)

Standard CFM (SCFM)

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

0.02

0.03

0.04

0.05

0.06

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0.11

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0.11

0.12

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0.11

0.12

Filter Size in. (mm)
600-1400 CFM 12x20x1+12x20x1 (305x508x25+305x508x25)
1200-1800 CFM 16x24x1+14x24x1 (406x610x25+356x610x25)
1500-2200 CFM 16x24x1+18x24x1 (406x610x25+457x610x25)
1500-2200 CFM 16x24x1+18x24x1 (406x610x25+457x610x25)

Cooling Tons
2.0

Table 7 Ecnoomizer with 1-in. Filter Pressure Drop (IN. W.C.)
Standard CFM (SCFM) 500 600 700 800 900 1000 1100 1200 1300 1400 1500

1600

1700

1800

1900

2000

2100

0.04 0.05 0.07 0.09 0.14 0.16 0.18 0.25

–

3.0

–

0.04 0.06 0.07 0.08 0.10 0.11 0.12 0.13 0.14 0.16 0.16

–

4.0

–

0.08 0.10 0.11 0.13 0.15 0.17 0.18 0.20 0.21 0.22

–

5.0

–

0.08 0.10 0.11 0.13 0.15 0.17 0.18 0.20 0.21 0.22 0.23

STATIC

500

600

5 kW

0.00

10 kW

0.00

15 kW

0.00

20 kW

0.00

Cooling Tons
2.0

Table 8 Filter Pressure Drop Table (IN. W.C.)
Standard CFM (SCFM) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100

0.02 0.03 0.05 0.06 0.08 0.10 0.11 0.13 –

–

3.0

–

0.03 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.09 0.10 0.11

–

4.0

–

0.02 0.03 0.03 0.04 0.04 0.06 0.08 0.10 0.11 0.13

–

5.0
700 0.00 0.00 0.00 0.02

–

0.02 0.03 0.03 0.04 0.04 0.06 0.08 0.10 0.11 0.13 0.14

Table 9 Electric Heat Pressure Drop Tables (IN. W.C.)

Small Cabinet: 24

STANDARD CFM (SCFM)

800

900

1000

1100

1200

0.00

0.02

0.04

0.06

0.02

0.04

0.06

0.08

0.10

0.04

0.06

0.08

0.09

0.11

1300 0.02 0.07 0.12 0.13

1400 0.04 0.09 0.14 0.15

1500 0.06 0.10 0.16 0.17

1600 0.07 0.11 0.18 0.19

STATIC
5 kW 10 kW 15 kW 20 kW

1100 0.00 0.00 0.00 0.02

1200 0.00 0.00 0.02 0.03

1300 0.00 0.01 0.03 0.04

1400 0.01 0.02 0.04 0.05

1500 0.02 0.03 0.05 0.06

1600 0.03 0.04 0.06 0.07

Large Cabinet: 36-60

STANDARD CFM (SCFM)

1700

1800

1900

0.04

0.05

0.06

0.05

0.06

0.07

0.08

0.09

0.08

0.09

0.10

2000 0.07 0.08 0.10 0.11

2100 0.08 0.09 0.11 0.12

2200 0.09 0.10 0.12 0.13

2300 0.10 0.11 0.13 0.14

2400 0.11 0.12 0.14 0.15

2500 0.12 0.13 0.15 0.16

PHR5: Installation Instructions

Fig. 14 Connection Wiring Diagram 208/230-1-60

A230223

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 19

PHR5: Installation Instructions

Fig. 15 Ladder Wiring Diagram 208/230-1-60

; A230224

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 20

PHR5: Installation Instructions

Fig. 16 Connection Wiring Diagram 208/230-3-60

A230221

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 21

PHR5: Installation Instructions

Fig. 17 Ladder Wiring Diagram 208/230-3-60
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 22

A230222

PHR5: Installation Instructions

Fig. 18 Cooling Charging Chart

A230229

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 23

PHR5: Installation Instructions
Maintenance
To ensure continuing high performance, and to minimize the possibility of premature equipment failure, periodic maintenance must be performed on this equipment. This cooling unit should be inspected at least once each year by a qualified service person. To troubleshoot unit, refer to Table 10, Troubleshooting Chart. NOTE TO EQUIPMENT OWNER: Consult your local dealer about the availability of a maintenance contract.
! WARNING
PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury or death and possible unit component damage. The ability to properly perform maintenance on this equipment requires certain expertise, mechanical skills, tools and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment, other than those procedures recommended in the Owner’s Manual.
! WARNING
ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow these warnings could result in personal injury or death:
1. Turn off electrical power to the unit and install lockout tag before performing any maintenance or service on this unit.
2. Use extreme caution when removing panels and parts. 3. Never place anything combustible either on or in contact with
the unit.
! CAUTION
UNIT OPERATION HAZARD Failure to follow this caution may result in equipment damage or improper operation. Errors made when reconnecting wires may cause improper and dangerous operation. Label all wires prior to disconnecting when servicing.
The minimum maintenance requirements for this equipment are as follows: 1. Inspect air filter(s) each month. Clean or replace when necessary. 2. Inspect indoor coil, drain pan, and condensate drain each cooling
season for cleanliness. Clean when necessary. 3. Inspect blower motor and wheel for cleanliness each cooling
season. Clean when necessary. 4. Check electrical connections for tightness and controls for proper
operation each cooling season. Service when necessary. 5. Ensure electric wires are not in contact with refrigerant tubing or
sharp metal edges. Air Filter IMPORTANT: Never operate the unit without a suitable air filter in the return-air duct system. Always replace the filter with the same dimensional size and type as originally installed. See Table 1 for recommended filter sizes. Inspect air filter(s) at least once each month and replace (throwaway-type) or clean (cleanable-type) at least twice during each

cooling season and twice during the heating season, or whenever the filter becomes clogged with dust and lint.
Indoor Blower and Motor NOTE: All motors are pre-lubricated. Do not attempt to lubricate these motors.
For longer life, operating economy, and continuing efficiency, clean accumulated dirt and grease from the blower wheel and motor annually.
! WARNING
ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Disconnect and tag electrical power to the unit before cleaning the blower motor and wheel.
To clean the blower motor and wheel:
1. Remove and disassemble blower assembly as follows: a. Remove blower access panel (see Fig. 20). b. Disconnect 5 pin plug and 4 pin plug from indoor blower motor. Remove capacitor if required. c. On all units remove blower assembly from unit. Remove screws securing blower to blower partition and slide assembly out. Be careful not to tear insulation in blower compartment. d. Ensure proper reassembly by marking blower wheel and motor in relation to blower housing before disassembly. e. Loosen setscrew(s) that secures wheel to motor shaft, remove screws that secure motor mount brackets to housing, and slide motor and motor mount out of housing.
2. Remove and clean blower wheel as follows: a. Ensure proper reassembly by marking wheel orientation. b. Lift wheel from housing. When handling and/or cleaning blower wheel, be sure not to disturb balance weights (clips) on blower wheel vanes. c. Remove caked-on dirt from wheel and housing with a brush. Remove lint and/or dirt accumulations from wheel and housing with vacuum cleaner, using soft brush attachment. Remove grease and oil with mild solvent. d. Reassemble wheel into housing. e. Reassemble motor into housing. Be sure setscrews are tightened on motor shaft flats and not on round part of shaft. Reinstall blower into unit. f. Connect 5 pin plug and 4 pin plug to indoor blower motor. Reinstall capacitor if required. g. Reinstall blower access panel (see Fig. 20).
3. Restore electrical power to unit. Start unit and check for proper blower rotation and motor speeds during cooling cycles.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 24

PHR5: Installation Instructions

MOTOR

FAN GRILLE

MOTOR SHAFT
MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE

A08505

Size

“A”

IN.

9.5

241

7.6

193

7.6

193

7.6

193

Fig. 19 Fan Blade Position Inspect the drain pan and condensate drain line when inspecting the coils. Clean the drain pan and condensate drain by removing all foreign matter from the pan. Flush the pan and drain trough with clear water. Do not splash water on the insulation, motor, wiring, or air filter(s). If the drain trough is restricted, clear it with a “plumbers snake” or similar probe device.
Outdoor Fan

! CAUTION
UNIT OPERATION HAZARD Failure to follow this caution may result in damage to unit components. Keep the condenser fan free from all obstructions to ensure proper cooling operation. Never place articles on top of the unit.

Fig. 20 Unit Access Panels

A09214

Outdoor Coil, Indoor Coil, and Condensate Drain Pan

Inspect the condenser coil, evaporator coil, and condensate drain pan at least once each year.

The coils are easily cleaned when dry; therefore, inspect and clean the coils either before or after each cooling season. Remove all obstructions, including weeds and shrubs, that interfere with the airflow through the condenser coil.

Straighten bent fins with a fin comb. If coated with dirt or lint, clean the coils with a vacuum cleaner, using the soft brush attachment. Be careful not to bend the fins. If coated with oil or grease, clean the coils with a mild detergent and water solution. Rinse coils with clear water, using a garden hose. Be careful not to splash water on motors, insulation, wiring, or air filter(s). For best results, spray condenser coil fins from inside to outside the unit. On units with an outer and inner condenser coil, be sure to clean between the coils. Be sure to flush all dirt and debris from the unit base.

1. Remove 6 screws holding condenser grille and motor to top cover.
2. Turn motor/grille assembly upside down on top cover to expose the fan blade.
3. Inspect the fan blades for cracks or bends.
4. If fan needs to be removed, loosen the setscrew and slide the fan off the motor shaft.
5. When replacing fan blade, position blade as shown in Fig. 19.
6. Ensure that setscrew engages the flat area on the motor shaft when tightening
7. Replace grille.
Electrical Controls and Wiring Inspect and check the electrical controls and wiring annually. Be sure to turn off the electrical power to the unit.
Remove access panels (see Fig. 20) to locate all the electrical controls and wiring. Check all electrical connections for tightness. Tighten all screw connections. If any smoky or burned connections are noticed, disassemble the connection, clean all the parts, restrip the wire end and reassemble the connection properly and securely.
After inspecting the electrical controls and wiring, replace the access panels (see Fig. 20). Start the unit, and observe at least one complete heating cycle and one complete cooling cycle to ensure proper operation. If discrepancies are observed in either or both operating cycles, or if a suspected malfunction has occurred, check each electrical component

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 25

PHR5: Installation Instructions

with the proper electrical instrumentation. Refer to the unit wiring label when making these checkouts.
NOTE: Refer to the heating and/or cooling sequence of operation in this publication as an aid in determining proper control operation
Refrigerant Circuit Inspect all refrigerant tubing connections and the unit base for oil accumulations annually. Detecting oil generally indicates a refrigerant leak.
! CAUTION
EXPLOSION, SAFETY AND ENVIRONMENTAL HAZARD
Failure to follow this warning could result in personal injury, death or equipment damage.
This system uses R-410A refrigerant which has higher operating pressures than R-22 and other refrigerants. No other refrigerant may be used in this system. Gauge set, hoses, and recovery system must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer.
If oil is detected or if low cooling performance is suspected, leak-test all refrigerant tubing using an electronic leak-detector, halide torch, or liquid-soap solution. If a refrigerant leak is detected, refer to Check for Refrigerant Leaks section.
If no refrigerant leaks are found and low cooling performance is suspected, refer to Checking and Adjusting Refrigerant Charge section.
Evaporator Airflow The heating and/or cooling air-flow does not require checking unless improper performance is suspected. If a problem exists, be sure that all supply- and return-air grilles are open and free from obstructions, and that the air filter is clean. When necessary, refer to Indoor Airflow and Airflow Adjustments section to check the system airflow.
Metering Device This unit uses 2 types of metering devices. The outdoor metering device is a fixed orifice and is contained in the brass hex-body in each liquid line feeding the outdoor coils. The indoor metering device is a TXV type device.
Pressure Switches Pressure switches are protective devices wired into the control circuit (low voltage). They shut off compressor if abnormally high or low pressures are present in the refrigeration circuit. These pressure switches are specifically designed to operate with R-410A systems. R-22 pressure switches must not be used as replacements for the R-410Aair conditioner.
Loss of Charge Switch
This switch is located on the liquid line and protects against low suction pressures caused by such events as loss of charge, low airflow across indoor coil, dirty filters, etc. It opens on a pressure drop at about 20 psig. If system pressure is above this, switch should be closed. To check switch:
NOTE: Because these switches are attached to refrigeration system under pressure, it is not advisable to remove this device for troubleshooting unless you are reasonably certain that a problem exists. If switch must be removed, remove and recover all system charge so that pressure gauges read 0 psi (0 Pa). Never open system without breaking vacuum with dry nitrogen.
High-Pressure Switch The high-pressure switch is located in the discharge line and protects against excessive condenser coil pressure. It opens at 650 psig (31.1

kPa). High pressure may be caused by a dirty condenser coil, failed fan motor, or condenser air recirculation. To check switch: 1. Turn off all power to unit. 2. Disconnect leads on switch. 3. Apply ohmmeter leads across switch. You should have continuity
on a good switch. Copeland Scroll Compressor R-410A Refrigerant) The compressor used in this product is specifically designed to operate with R-410A refrigerant and cannot be interchanged. The compressor is an electrical (as well as mechanical) device. Exercise extreme caution when working near compressors. Power should be shut off, if possible, for most troubleshooting techniques. Refrigerants present additional safety hazards.
! WARNING
FIRE/EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death and/or property damage. Wear safety glasses and gloves when handling refrigerants. Keep torches and other ignition sources away from refrigerants and oils.
The scroll compressor pumps refrigerant throughout the system by the interaction of a stationary and an orbiting scroll. The scroll compressor has no dynamic suction or discharge valves, and it is more tolerant of stresses caused by debris, liquid slugging, and flooded starts. The compressor is equipped with a noise reducing shutdown device and an internal pressure relief port. The pressure relief port is a safety device, designed to protect against extreme high pressure. The relief port has an operating range between 550 (26.3 kPa) and 625 (29.9 kPa) psig differential pressure. Refrigerant
! CAUTION
EXPLOSION, ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury, death or equipment damage. This system uses R-410A refrigerant which has higher operating pressures than R-22 and other refrigerants. No other refrigerant may be used in this system. Gauge set, hoses, and recovery system must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer.
This system uses R-410A refrigerant which has higher operating pressures than R-22 and other refrigerants. No other refrigerant may be used in this system. Gage set, hoses, and recovery system must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer. Failure to use R-410A compatible servicing equipment or replacement components may result in property damage or injury. Compressor Oil The Copeland scroll compressor uses 3MAF POE oil. If additional oil is needed, use Uniqema RL32-3MAF. If this oil is not available, use Copeland Ultra 32 CC or Mobil Arctic EAL22 CC. This oil is extremely hygroscopic, meaning it absorbs water readily. POE oils can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil to the atmosphere. Servicing Systems on Roofs with Synthetic Materials POE (polyolester) compressor lubricants are known to cause long term damage to some synthetic roofing materials. Exposure, even if

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 26

PHR5: Installation Instructions
immediately cleaned up, may cause embrittlement (leading to cracking) to occur in one year or more. When performing any service that may risk exposure of compressor oil to the roof, take appropriate precautions to protect roofing. Procedures which risk oil leakage include, but are not limited to, compressor replacement, repairing refrigerant leaks, replacing refrigerant components such as filter drier, pressure switch, metering device, coil, accumulator, or reversing valve.
Synthetic Roof Precautionary Procedure
1. Cover extended roof working area with an impermeable polyethylene (plastic) drip cloth or tarp. Cover an approximate 10 x 10 ft (3 x 3 m) area.
2. Cover area in front of the unit service panel with a terry cloth shop towel to absorb lubricant spills, prevent run-offs, and protect drop cloth from tears caused by tools or components.
3. Place terry cloth shop towel inside unit immediately under component(s) to be serviced and prevent lubricant run-offs through the louvered openings in the unit base.
4. Perform required service.
5. Remove and dispose of any oil contaminated material per local codes.
Liquid Line Filter Drier
The filter drier is specifically designed to operate with R-410A. Use only factory-authorized components. Filter drier must be replaced whenever the refrigerant system is opened. When removing a filter drier, use a tubing cutter to cut the drier from the system. Do not unsweat a filter drier from the system. Heat from unsweating will release moisture and contaminants from drier into system.
R-410A Refrigerant Charging
Refer to unit information plate and charging chart. Some R-410A refrigerant cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position. For cylinders equipped with a dip tube, charge R-410A units with cylinder in upright position and a commercial metering device in manifold hose. Charge refrigerant into suction-line.
Step 5 System Information
Loss of Charge Switch
The loss of charge switch is a protective device wired into control circuit (low voltage). It shuts off the compressor if abnormally low pressures are present in the refrigeration circuit.
NOTE: Because these switches are attached to refrigeration system under pressure, it is not advisable to remove this device for troubleshooting unless you are reasonably certain that a problem exists. If switch must be removed, remove and recover all system charge so that pressure gauges read 0 psig. Never open system without breaking vacuum with dry nitrogen.
Check Defrost Thermostat
The defrost thermostat is usually located on the lowest liquid leaving circuit of the left condenser coil (see Fig. 21). The thermostat closes at 32_F (0_C) and opens at 65_F (18_C).
The defrost thermostat signals heat pump that conditions are right for defrost or that conditions have changed to terminate defrost. It is a thermally actuated switch clamped to outdoor coil to sense its temperature. Normal temperature range is closed at 32_ 3_F (0 1.7_C) and open at 65_ 5_F (18 2.8_C). NOTE: The defrost thermostat must be located on the liquid side of the outdoor coil on the bottom circuit and as close to the coil as possible.

FEEDER TUBE STUB TUBE

DEFROST THERMOSTAT

Fig. 21 Defrost Thermostat

C99029

Troubleshooting
Refer to the Troubleshooting Chart (Table 10) for troubleshooting information.

Start-up Checklist
Use the Start-Up Checklist at the back of this manual.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 27

PHR5: Installation Instructions

SYMPTOM Compressor and outdoor fan will not start

Table 10 Troubleshooting Chart
CAUSE Power failure Fuse blown or circuit breaker tripped Defective contactor, transformer or high-pressure, loss-of-charge or low-pressure switch Insufficient line voltage Incorrect or faulty wiring

Thermostat setting too high

Faulty wiring or loose connections in compressor

circuit

Compressor will not start but condenser fan runs Compressor motor burned out, seized, or internal

overload open

Defective run/start capacitor, overload, start relay

Three-phase scroll compressor (size 36-60 unit) has a low pressure differential

Scroll compressor is rotating in the wrong direction

Refrigerant overcharge or undercharge

Compressor cycles (other than normally satisfying thermostat)
Compressor operates continuously

Defective compressor Insufficient line voltage Blocked condenser Defective run/start capacitor, overload or start relay Defective thermostat Faulty condenser-fan motor or capacitor Restriction in refrigerant system Dirty air filter Unit undersized for load Thermostat set too low Low refrigerant charge Mechanical damage in compressor

Air in system

Excessive head pressure

Condenser coil dirty or restricted Dirty air filter Dirty indoor or outdoor coil Refrigerant overcharged

Air in system

Head pressure too low Excessive suction pressure

Low refrigerant charge Compressor IPR leaking Restriction in liquid tube High heat load Compressor IPR leaking Refrigerant overcharged Dirty air filter Low refrigerant charge Metering device or low side restricted

Suction pressure too low

Insufficient evaporator airflow

Temperature too low in conditioned area Outdoor ambient below 55F (12.7C) Filter drier restricted

REMEDY Call power company Replace fuse or reset circuit breaker
Replace component
Determine cause and correct Check wiring diagram and rewire correctly Lower thermostat setting below room temperature
Check wiring and repair or replace
Determine cause Replace compressor Determine cause and replace Correct the direction of rotation by reversing the 3-phase power leads to the unit Recover refrigerant, evacuate system, and recharge to capacities shown on rating plate Replace and determine cause Determine cause and correct Determine cause and correct Determine cause and replace Replace thermostat Replace Locate restriction and remove Replace filter Decrease load or increase unit size Reset thermostat Locate leak, repair, and recharge Replace compressor Recover refrigerant, evacuate system, and recharge Clean coil or remove restriction Replace filter Clean coil Recover excess refrigerant Recover refrigerant, evacuate system, and recharge Check for leaks, repair and recharge Replace compressor Remove restriction Check for source and eliminate Replace compressor Recover excess refrigerant Replace filter Check for leaks, repair and recharge Remove source of restriction Increase air quantity Check filterreplace if necessary Reset thermostat Install low-ambient kit Replace filter

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 28

PHR5: Installation Instructions
Start-Up Checklist
(Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: ____________________________________________ SERIAL NO.: ____________________________________________ DATE: __________________________________________________ TECHNICIAN: ___________________________________________
II. PRESTART-UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE ( ) VERIFY THAT UNIT INSTALLATION IS LEVEL ( ) CHECK FAN WHEEL, AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS ( ) INSPECT TUBING
III. START-UP ELECTRICAL SUPPLY VOLTAGE _______________________________________ COMPRESSOR AMPS ____________________________________ INDOOR (EVAPORATOR) FAN AMPS _______________________ TEMPERATURES OUTDOOR (CONDENSER) AIR TEMPERATURE __________ DB RETURN-AIR TEMPERATURE__________ DB ___________ WB COOLING SUPPLY AIR ________________ DB ___________ WB HEAT PUMP SUPPLY AIR _________________________________ ELECTRICAL HEAT SUPPLY AIR __________________________ PRESSURES REFRIGERANT SUCTION____________ PSIG,SUCTION LINE TEMP* ___________________ REFRIGERANT DISCHARGE ____________ PSIG, LIQUID TEMP_______________________ ( ) VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS * Measured at suction inlet to compressor {Measured at liquid line leaving condenser.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 29

PHR5: Installation Instructions

Edition Date: 12/23

Catalog No: PHR5-02SI Replaces: PHR5-02SI

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Documents / Resources

shared docs PHR5 Packaged Heat Pump System [pdf] Installation Guide
PHR5 Packaged Heat Pump System, PHR5, Packaged Heat Pump System, Heat Pump System, Pump System, System

References

User Manual

PHR5 Packaged Heat Pump System

Product Information

Specifications

Product Usage Instructions

Safety Considerations

Installation

Important Notes

FAQ

Q: What should I do before servicing the unit?

Q: Can I use non-manufacturer approved parts?

Documents / Resources

References

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