TRANE TEM6B0C60H51SA Convertible Air Handlers Installation Guide

Installation Guide for TRANE models including: TEM6A0B24H21SC, TEM6A0B30H21SC, TEM6A0C36H31SC, TEM6A0C42H41SC, TEM6A0C48H41SC, TEM6B0C60H51SA, TEM6B0C60H51SA Convertible Air Handlers, Convertible Air Handlers, Air Handlers

Installer's Guide

Search Results: * - Public

File Info : application/pdf, 24 Pages, 33.22MB

18-GF74D1-1T-EN 10142022

Installer's Guide
Convertible Air Handlers 2 -- 5 Ton
TEM6A0B24H21SC TEM6A0B30H21SC TEM6A0C36H31SC TEM6A0C42H41SC TEM6A0C48H41SC TEM6B0C60H51SA

The TEM6 series air handler is designed for installation in a closet, utility room, alcove, basement, crawlspace or attic. These versatile units are applicable to air conditioning and heat pump applications. Several models are available to meet the specific requirements of the outdoor equipment. Field installed electric resistance heaters are available.
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

October 2022

18-GF74D1-1T-EN

SAFETY SECTION
Important: This document contains a wiring diagram, a parts list, and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
Important: These instructions do not cover all variations in systems nor provide for every possible contingency to be met in connection with the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should be referred to your installing dealer or local distributor.
WARNING
HAZARDOUS VOLTAGE!
Failure to follow this Warning could result in property damage, severe personal injury, or death. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.
CAUTION
GROUNDING REQUIRED!
Failure to inspect or use proper service tools may result in equipment damage or personal injury. Reconnect all grounding devices. All parts of this product that are capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened.
WARNING
LIVE ELECTRICAL COMPONENTS!
Failure to follow this Warning could result in property damage, severe personal injury, or death. Follow all electrical safety precautions when exposed to live electrical components. It may be necessary to work with live electrical components during installation, testing, servicing, and troubleshooting of this product.

WARNING
PRESSURIZED REFRIGERANT!
Failure to follow this Warning could result in personal injury System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure before opening the system. Do no use nonapproved refrigerants or refrigerant substitutes or refrigerant additives.
CAUTION
SHARP EDGE HAZARD!
Failure to follow this Caution could result in property damage or personal injury. Be careful of sharp edges on equipment or any cuts made on sheet metal while installing or servicing.
CAUTION
HAZARDOUS VAPORS!
Failure to follow this caution could result in property damage or personal injury. Equipment corrosion damage. To prevent shortening its service life, the air handler should not be used during the finishing phases of construction or remodeling. The low return air temperatures can lead to the formation of condensate. Condensate in the presence of chlorides and fluorides from paint, varnish, stains, adhesives, cleaning compounds, and cement creates a corrosive condition which may cause rapid deterioration of the cabinet and internal components.
CAUTION
COIL IS PRESSURIZED!
· Coil is pressurized with approximately 812 psi dry air and factory checked for leaks. · Carefully release the pressure by removing the rubber plug on the liquid line. · If no pressure is released, check for leaks.
WARNING
SAFETY HAZARD!
This appliance is not to be used 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.

18-GF74D1-1T-EN

SAFETY SECTION

WARNING
SAFETY HAZARD!
Children should be supervised to ensure that they do not play with the appliance.
WARNING
WARNING!
This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Important: Installation of this unit shall be made in accordance with the National Electric Code, NFPA No. 90A and 90B, and any other local codes or utilities requirements.
Important: Air handlers do not require repositioning of the coil or drain pan for upflow or horizontal left applications. See the downflow and horizontal right installation sections for application instructions.
Note: Air handlers have been evaluated in accordance with the Code of Federal Regulations, Chapter XX, Part 3280 or the equivalent. "SUITABLE FOR MOBILE HOME USE."
Note: Condensation may occur on the surface of the air handler when installed in an unconditioned space. When units are installed in unconditioned spaces, verify that all electrical and refrigerant line penetrations on the air handler are sealed completely.
Note: The manufacturer recommends installing ONLY A.H.R.I approved, matched indoor and outdoor systems. Some of the benefits of installing approved matched indoor and outdoor split systems are maximum efficiency, optimum performance, and the best overall system reliability.

Features
Table 1. Standard Features
· MULTI-POSITION UPFLOW, DOWNFLOW, HORIZONTAL LEFT AND HORIZONTAL RIGHT
· PAINTED FINISH ON GALVANIZED STEEL EXTERIOR WITH FULLY INSULATED CABINET THAT MEETS R4.2 VALUE
· STURDY POLYCARBONATE DRAIN PANS These air handlers have factory installed drain pans and are shipped for upflow and horizontal left applications
· 208/230 VAC OPERATION · VARIABLE-SPEED DIRECT DRIVE BLOWER. · FACTORY INSTALLED R-410A THERMAL EXPANSION VALVE · ALL ALUMINUM COIL · BOTTOM RETURN · MEETS THE MINIMUM LEAKAGE REQUIREMENTS FOR THE
FLORIDA AND CALIFORNIA BUILDING CODES
Table 2. Optional Accessories
· 4,5,8,10,15,20, and 25 KW SINGLE PHASE ELECTRIC HEATERS Circuit breakers available on single phase 4, 5, 8, 10, 15, 20, and 25 KW heaters Lugs available on single phase 4, 5, 8, and 10 KW heaters Lugs available on three phase 10 and 15 KW heaters
· SINGLE POINT POWER ENTRY KIT (for 15 and 20 KW heaters)
· SUPPLY DUCT FLANGE KIT · DOWNFLOW SUB-BASE KITS - TAYBASE185, TAYBASE235,
TAYBASE260 · SLIM FIT FILTER BOX KIT -- BAYSF1185AAA,
BAYSF1235AAA, BAYSF1265AAA

18-GF74D1-1T-EN

Table of Contents
Installation Instructions. . . . . . . . . . . . . . . . . . . . . 5 Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Performance and Electrical Data . . . . . . . . . . . 10 Minimum Airflow CFM . . . . . . . . . . . . . . . . . . . . 15 Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Heater Pressure Drop Table . . . . . . . . . . . . . . . 17 Subcooling Adjustment . . . . . . . . . . . . . . . . . . 17 Subcooling Adjustment for TEM6A0C48H41 & TEM6B0C60H51 . . . . . . . 17
Coil Conversion Instructions. . . . . . . . . . . . . . . 18
Checkout Procedures . . . . . . . . . . . . . . . . . . . . . . 24

18-GF74D1-1T-EN

Installation Instructions
1. Unpacking
Carefully unpack the unit and inspect the contents for damage. If any damage is found at the time of delivery, proper notification and claims should be made with the carrier.
Check the rating plate to assure model number and voltage, plus any kits match with what you ordered. The manufacturer should be notified within 5 days of any discrepancy or parts shortage.
2. Location
The air handler should be centrally located and may be installed in a closet, alcove, utility room, basement, crawl space or attic. Minimum clearances must be met.
Important: The downflow sub-base may be required with electric heat applications. See minimum clearance table.
The unit should be installed in a level position to ensure proper condensation drainage. Up to an additional 1/4" rise over the width or depth of the unit is allowed to create additional sloping towards the drain. Unit must be positioned between level and ¼" rise, sloping toward the drain connections.
When the unit is installed in a closet or utility room, the room should be large enough, and have an opening to allow replacement of the unit. All servicing is done from the front and a clearance of 21" is needed for service unless the closet door aligns with the front of the air handler.
If you are installing the unit in an unconditioned space such as an attic or crawl space, you must ensure that the area provides sufficient air circulation to prevent moisture collection on the cabinet during high dew point conditions. A drain pan must be installed under the entire unit when it is installed in or above a finished ceiling or in an unconditioned space.
3. Duct Work
The duct work should be installed in accordance with the NFPA No. 90A "Installation of Air Conditioning and Ventilating systems" and No. 90B "Residential Type Warm Air Heating and Air Conditioning Installation."
The duct work should be insulated in accordance with the applicable requirements for the particular installation as required by HUD, FHA, VA the applicable building code, local utility or other governing body.
4. Condensate Drain
The unit is supplied with primary and auxiliary condensate drains that have 3/4" NPT connections. The primary drain must be trapped outside the unit and piped in accordance with applicable building
18-GF74D1-1T-EN

codes.
The figure shows the operation of a properly designed trap under normal operating conditions when the blower is running and the condensate is draining. Note the difference in height of the water column must at least equal the normal negative static pressure existing during operation between the cooling coil and blower. It is advisable to have the difference in water column height somewhat greater than the normal maximum operating static to allow for greater static caused by dirty filters or for the bounce of the water column on start up.
Negative Pressure

Drain Pan
Blower Running

"C" "A"

To Drain
Proper operation of condensate trap under normal operating conditions.
"A" height of water column equals negative static pressure existing in system.
"C" dimension should at least equal two times the maximum negative static pressure that can occur in system.

Do not reduce the drain line size less than the connection size on the drain pan. Condensate should be piped to an open drain or to the outside. All drains must pitch downward away from the unit a minimum of 1/4" per foot of line to ensure proper drainage.
Important: If cleanout Tee is used, stand pipe must be sealed/capped.
Important: If a vent Tee is used, it must be downstream from the trap.

Vent -This vent pipe MUST terminate above the dotted line

Cleanout (with Cap)

To Drain
Cleanout (Plug)
Insulate the primary drain line to prevent sweating where dew point temperatures may be met.
5

Installation Instructions

(Insulation is optional depending on climate and application needs.)

5. Refrigerant Piping
Refrigerant piping external to the unit shall be sized in accordance with the instructions of the manufacturer of the outdoor equipment.
6. Metering Device
All units are shipped and installed with an internally-checked, non-bleed TXV designed for air conditioning or heat pump operation. Some outdoor models may require a start assist kit. See outdoor unit for more information.
7. Blower
This unit is supplied with a variable speed motor with a direct drive blower wheel which can obtain various air flows. The unit is shipped with factory set cooling and heating air flows. Performance tables are available for additional airflow settings. Disconnect all power to the unit before making any adjustments to the airflow settings. Be sure to check the air flow and the temperature drop across the evaporator coil to ensure sufficient air flow.
8. Airflow Adjustment

CAUTION
EQUIPMENT DAMAGE!
Failure to follow this procedure may result in equipment damage. Disconnect power to the air handler before changing dip switch positions.

Blower speed changes are made on the ECM Fan Control. The ECM Fan Control controls the variable speed motor.
There is a bank of 8 dip switches. The dip switches work in pairs to match the airflow for the outdoor unit size (tons). cooling airflow adjustment, Fan offdelay options, and heating airflow adjustment. The switches appear as shown in Figure 2, p. 6

Figure 1. ECM Fan Control

CFM SELECTION LIGHT

DIP SWITCHES

Figure 2. Dip Switches

COOLING HEATING AIRFLOW

FAN OFF AUXILARY DELAY HEAT SPEEDS

DIP SWITCHES (TYPICAL SETTINGS)
If the airflow needs to be increased or decreased, see the Airflow Label on the air handler or Blower Performance Table. Be sure to set the correct airflow for cooling and heating. Switches 14 Cooling Airflow Switches 56 Fan Off Delay Options Switches 78 Auxiliary Heat

Indoor Blower Timing
Important: Leave dip switches 5 and 6 in the "asshipped" positions during system startup and check out. Afterwards, adjust as desired.
Table 3. Cooling Off -- Delay Options

SWITCH SETTINGS

5 -- OFF

6 -- OFF

SELECTION NONE

NOMINAL AIRFLOW
SAME

5 -- ON

6 -- OFF

1.5 MINUTES

100% (a)

5 -- OFF

6 -- ON

3 MINUTES

50%

5 -- ON

6 -- ON

ENHANCED (b)

50100%

(a) Default setting (b) This ENHANCED MODE selection provides a ramping up and ramping
down of the blower speed to provide improved comfort, quietness, and potential energy savings. The graph shows the ramping process.

Figure 3. Enhanced Mode
100% if necessary

FAN OPERATION (CFM)

80%

50%

Dehumidify Warm Air Heating

50%

OFF

Fast Coil Cooling Fast Coil Heating

1 minute

7.5 minutes

COMPRESSOR OPERATION

Efficiency

as required ON

3 minutes
OFF

OFF

9. Wiring
Consult all schematic and pictorial wiring diagrams of this unit and the outdoor equipment to determine compatibility of wiring connections and to determine specific requirements.

18-GF74D1-1T-EN

Installation Instructions

All field wiring to the air handler should be installed in accordance with the latest edition of the National Electric Code NFPA No. 70 and any local codes. Check rating plates on unit for rated volts, minimum circuit ampacity and maximum over current protection. Supply circuit power wiring must be 75 degree C (167 degree F) minimum copper conductors only. Copper supply wires shall be sized to the National Electric Code or local code requirements, whichever is more stringent.
The unit is shipped wired for 230/240 Volt AC 60 HZ 1 Phase Operation. If the unit is to be operated at 208 VAC 60HZ, follow the instructions on the indoor unit wiring diagram to change the low voltage transformer to 208 VAC operation (Ensure unit is properly grounded).
Class 2 low voltage control wiring should not be run in conduit with power wiring and must be separated from power wiring unless class 1 wire with proper voltage rating is used.
Low voltage control wiring should be 18 Awg, color coded (105 degree C minimum). For lengths longer than 100ft., 16 Awg wire should be used. Make certain that separation of control wiring and power wiring has been maintained.
10. Air Filter
To protect the coil, blower and other internal parts from excessive dirt and dust an air filter must be installed before air enters the evaporator coil. A remote filter must be installed. Consult the filter manufacturer for proper sizing and maximum velocity requirements.
Important: Air filters shall meet the test requirements in UL 900.
11. Thermostat
Select a thermostat that is commonly used with HP or AC single stage heating/cooling with electric heat. The thermostat will energize the fan on a demand for heat or cool.
Install the thermostat on an inside wall, away from drafts, lights or other heat sources in a location that has sufficient air circulation from other rooms being controlled by the thermostat.
12. Sequence of Operation Cooling (Cooling only)
When the thermostat calls for cooling, the circuit from R to G is completed. The blower motor is energized directly by the ECM fan control, which receives the 24VAC signal from the thermostat.
The circuit from R to Y is also complete energizing the compressor contactor of the outdoor unit. The contactor will close and start the compressor and condenser fan motor.

Cooling (heat pump)
When the thermostat calls for cooling, the circuit from R to G is completed. The blower motor is energized directly by the ECM fan control, which receives the 24VAC signal from the thermostat.
The circuit from R to Y is also complete energizing the compressor contactor of the outdoor unit. The contactor will close and start the compressor and condenser fan motor.
Circuit R to O energizes the reversing valve to the cooling position.
Heating (heat pump)
When the thermostat calls for heating, the circuit from R to G is completed and the blower motor is energized directly by the ECM fan control, which receives the 24VAC signal from the thermostat.
The circuit from R to Y is also complete energizing the compressor contactor of the outdoor unit. The contactor will close and start the compressor and condenser fan motor.
In the heating mode, the reversing valve of the outdoor unit is not energized.
If the indoor temperature continues to fall, the R to W circuit is completed energizing the electric heat contactor(s).
Heating (electric heat only)
Note: The thermostat must be setup to bring the blower on when the electric heat is energized.
When the thermostat calls for heating, the circuit from R to G is completed and the blower motor is energized directly by the ECM fan control, which receives the 24VAC signal from the thermostat. The circuit from R to W is completed energizing the heating contactor(s).
Defrost
Supplemental heat during defrost can be provided by connecting the X2 (black) wire from the outdoor unit to W1 or W2 at the indoor unit. This will prevent cold air from being discharged from the indoor unit during defrost.
13. Operational and Checkout Procedures
To obtain proper performance, all units must be operated and charge adjustments made in accordance with procedures found in the Service Facts document of the outdoor unit. After installation has been completed, it is recommended that the entire system be checked against the checkout list located at the back of this document. See "Checkout Procedures," p. 24

18-GF74D1-1T-EN

Installation Instructions

14. Maintenance
The system air filter(s) should be inspected, cleaned or replaced at least monthly. Make certain that the access panels are replaced and secured properly before placing the unit back in operation. This product is designed for dependable service; however, periodic maintenance should be

Field Wiring

Single Stage, Cooling Only

Thermostat

Air Handler

Outdoor Unit

24 VAC HOT

scheduled and conducted by trained professional service personnel. This service should be conducted at least annually, and should include testing and inspection of electrical and refrigerant components. The heat transfer surface should be cleaned. The blower motor is permanently lubricated for normal operating conditions.

Single Stage, HP

Thermostat

Air Handler

24 VAC HOT

Outdoor Unit
R

FAN

24 VAC Common

SOV

COOL/HEAT 1st STAGE

Blue

HEATING 2nd STAGE

W2 EMERGENCY
HEAT

Y2
W1
White
W2
White
BK
WH/BLK

FAN

24 VAC Common

SOV

COOL/HEAT 1st STAGE

HEATING 2nd STAGE

W2 EMERGENCY
HEAT

G B
Blue
O
Y1
Y2 W1
White
W2
White
BK
WH/BLK

B O Y
X2
Black
Optional

2 Stage, 2 Step, Cooling Only

Thermostat

Air Handler

Outdoor Unit

24 VAC HOT

2 Stage, 2 Step, HP

Thermostat

Air Handler

24 VAC HOT

Outdoor Unit
R

FAN

24 VAC Common

Blue

COOL/HEAT 1st STAGE

FAN

24 VAC Common

B
Blue

SOV

COOL/HEAT 1st STAGE

HEATING 2nd STAGE

W2 EMERGENCY
HEAT

W1
White
W2
White
BK
WH/BLK

HEATING 2nd STAGE

W2 EMERGENCY
HEAT

Y2 W1
White
W2
White
BK
WH/BLK

Y2 X2
Black
Optional

1. * Units with pigtails require wirenuts for connections. 2. Cap all unused wires. 3. For BK enabled comfort control, do not connect Y1 or Y2 at the air handler

4. For BK enabled comfort control, cut the jumper wire between R and BK on the control board. See wiring schematic for details. 5. In AC systems for multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat.

4. For BK enabled comfort control, cut the jumper wire between R and BK on the control board. See wiring schematic for details. 5. In systems for multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat.

18-GF74D1-1T-EN

Electrical Data

18-GF74D1-1T-EN

Performance and Electrical Data

Table 4. Air Flow Performance Tables

TEM6A0B24H21SC COOLING AIRFLOW PERFORMANCE, WET COIL, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS)

SPEED SETTING
LOW

1.5

NORMAL

HIGH

LOW

NORMAL

HIGH

LOW

2.5

NORMAL
(a)

HIGH

(a) Factory Default Setting

AIRFLOW SETTING
353 CFM/ ton
401 CFM/ ton
451 CFM/ ton
343 CFM/ ton
390 CFM/ ton
439 CFM/ ton
300 CFM/ ton
340 CFM/ ton
383 CFM/ ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW POWER
CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts

EXTERNAL STATIC PRESSURE

0.1

0.3

0.5

0.7

0.9

533

497

461

425

390

104

130

157

611

580

548

517

486

125

155

185

684

668

644

611

570

115

148

182

215

687

672

648

614

571

115

149

182

215

789

798

780

735

663

104

145

183

216

246

884

887

882

845

751

135

177

230

274

290

752

749

729

691

636

123

167

211

241

859

861

863

830

727

128

172

211

242

268

963

973

995

967

844

172

223

263

291

308

TEM6A0B24H21SC HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS)

SPEED SETTING
LOW

1.5

NORMAL

HIGH

LOW

NORMAL

HIGH

LOW

2.5

NORMAL
(a)

HIGH

(a) Factory Default Setting

AIRFLOW SETTING
394 CFM/ ton
448 CFM/ ton
493 CFM/ ton
393 CFM/ ton
446 CFM/ ton
491 CFM/ ton
350 CFM/ ton
398 CFM/ ton
437 CFM/ ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW POWER
CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts

EXTERNAL STATIC PRESSURE

0.1

0.3

0.5

0.7

0.9

599

571

539

502

462

117

146

175

680

665

641

610

572

109

145

178

209

748

746

682

545

326

118

163

208

240

785

790

773

735

674

128

175

223

253

904

902

912

894

809

131

179

219

253

281

980

972

990

974

863

167

216

268

308

324

866

870

866

833

750

125

162

215

263

286

995

988

1005

986

872

171

222

271

309

325

1099

1086

1098

1065

918

220

274

328

362

353

TEM6A0B30H21SC COOLING AIRFLOW PERFORMANCE, WET COIL, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS) 1.5
2
2.5

SPEED SETTING
LOW NORMAL
HIGH LOW NORMAL HIGH LOW NORMAL HIGH

AIRFLOW SETTING
353 CFM/ ton
401 CFM/ ton
451 CFM/ ton
343 CFM/ ton
390 CFM/ ton
439 CFM/ ton
300 CFM/ ton
340 CFM/ ton
383 CFM/ ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW POWER
CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts

EXTERNAL STATIC PRESSURE

0.1

0.3

0.5

0.7

0.9

533

497

461

425

390

104

130

157

611

580

548

517

486

125

155

185

684

668

644

611

570

115

148

182

215

687

672

648

614

571

115

149

182

215

789

798

780

735

663

104

145

183

216

246

884

887

882

845

751

135

177

230

274

290

752

749

729

691

636

123

167

211

241

859

861

863

830

727

128

172

211

242

268

963

973

995

967

844

172

223

263

291

308

18-GF74D1-1T-EN

Performance and Electrical Data

TEM6A0B30H21SC COOLING AIRFLOW PERFORMANCE, WET COIL, NO FILTER, NO HEATER

LOW

310 CFM/ ton

OFF

CFM

913

947

962

938

883

Watts

119

172

233

297

364

NORMAL 330 CFM/

(a)

ton

OFF

CFM Watts

967

1004

1022

1000

947

138

194

258

326

397

(a) Factory Default Setting

TEM6A0B30H21SC HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS)

SPEED SETTING
LOW

1.5

NORMAL

HIGH

LOW

NORMAL

HIGH

LOW

2.5

NORMAL

HIGH

LOW

NORMAL

(a)

(a) Factory Default Setting

AIRFLOW
SETTING
394 CFM/ ton
448 CFM/ ton
493 CFM/ ton
393 CFM/ ton
446 CFM/
ton 491 CFM/
ton 350 CFM/
ton 398 CFM/
ton 437 CFM/
ton 325 CFM/
ton 346 CFM/
ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW
POWER
CFM Watts CFM Watts CFM Watts CFM Watts CFM
Watts CFM
Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts

0.1
599
58 680
72 748
89 785
97 904
131 980
167 866
125 995
171 1099
220 953
133 1010
154

EXTERNAL STATIC PRESSURE

0.3
571
88 665
109 746
118 790
128 902
179 972
216 870
162 988
222 1086
274 990
188 1049
212

0.5
539
117 641
145 682
163 773
175 912
219 990
268 866
215 1005
271 1098
328 1007
251 1066
279

0.7
502
146 610
178 545
208 735
223 894
253 974
308 833
263 986
309 1065
362 985
318 1047
350

0.9
462
175 572
209 326
240 674
253 809
281 863
324 750
286 872
325 918
353 931
389 1000
426

TEM6A0C36H31SC, TEM6A0C42H41SC COOLING AIRFLOW PERFORMANCE, WET COIL, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS) 2.5
3
3.5
4

SPEED SETTING
LOW NORMAL
HIGH LOW NORMAL HIGH LOW NORMAL HIGH LOW NORMAL
(a)
HIGH

AIRFLOW
SETTING
300 CFM/
ton 341 CFM/
ton 384 CFM/
ton 319 CFM/
ton 363 CFM/
ton 408 CFM/
ton 315 CFM/
ton 357 CFM/
ton 402 CFM/
ton 308 CFM/
ton 350 CFM/
ton 394 CFM/
ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW
POWER
CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts CFM
Watts

0.1
761
63 862
82 962
106 961
106 1092
146 1231
196 1104
150 1258
209 1418
286 1238
199 1412
282 1570
393

EXTERNAL STATIC PRESSURE

0.3
755
98 861
120 963
147 962
147 1093
192 1231
249 1105
197 1258
263 1415
347 1238
253 1410
344 1528
436

0.5
719
131 834
158 948
190 947
189 1082
240 1221
301 1094
245 1248
317 1401
406 1229
306 1398
404 1473
466

0.7
654
163 781
196 915
234 914
233 1060
288 1203
353 1072
293 1229
369 1379
462 1210
357 1378
462 1406
483

0.9
560
193 700
235 863
279 862
279 1026
337 1175
404 1039
343 1201
421 1348
516 1182
408 1349
517 1326
488

(a) Factory Default Setting

TEM6A0C36H31SC, TEM6A0C42H41SC HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS)
2.5

SPEED SETTING
LOW
NORMAL
HIGH

AIRFLOW SETTING
341 CFM/ ton
379 CFM/ ton
417 CFM/ ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW POWER
CFM Watts CFM Watts CFM Watts

EXTERNAL STATIC PRESSURE

0.1

0.3

0.5

0.7

0.9

860

863

838

788

707

115

154

193

232

949

953

937

906

852

138

180

224

269

1042

1046

1036

1015

980

122

166

212

259

308

18-GF74D1-1T-EN

Performance and Electrical Data

TEM6A0C36H31SC, TEM6A0C42H41SC HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

LOW

381 CFM/ ton

OFF

CFM Watts

1147 154

1149 203

1141 253

1123 303

NORMAL

424 CFM/ ton

OFF

CFM Watts

1277 204

1279 259

1272 314

1255 368

HIGH

466 CFM/ ton

OFF

CFM Watts

1409 260

1409 323

1401 383

1384 442

LOW

348 CFM/ ton

OFF

CFM Watts

1222 180

1224 232

1216 285

1200 336

3.5

NORMAL

386 CFM/ ton

OFF

CFM Watts

1361 240

1362 300

1354 358

1337 415

HIGH

425 CFM/ ton

OFF

CFM Watts

1497 316

1478 372

1449 420

1408 461

LOW

338 CFM/ ton

OFF

CFM Watts

1360 239

1361 299

1353 358

1336 415

NORMAL 375 CFM/

(a)

ton

OFF

CFM Watts

1511 325

1489 380

1456 426

1412 464

HIGH

413 CFM/ ton

OFF

CFM Watts

1659 420

1605 463

1535 488

1450 494

(a) Factory Default Setting

1094
353 1228
421 1357
500 1174
388 1310
471 1356
494 1309
470 1355
493 1349
483

TEM6A0C48H41SC, TEM6B0C60H51SA COOLING AIRFLOW PERFORMANCE, WET COIL, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS)

SPEED AIRFLOW SETTING SETTING

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

AIRFLOW POWER

EXTERNAL STATIC PRESSURE

0.1

0.3

0.5

0.7

0.9

LOW

324 CFM/ ton

OFF

CFM

991

985

974

984

994

Watts

133

186

237

303

NORMAL

368 CFM/ ton

OFF

CFM Watts

1120 118

1119 167

1110 224

1116 279

1122 333

HIGH

423 CFM/ ton

OFF

CFM Watts

1282 162

1286 219

1281 280

1280 343

1282 402

LOW

314 CFM/ ton

OFF

CFM Watts

1116 117

1114 165

1105 222

1111 277

1117 331

3.5

NORMAL

357 CFM/ ton

OFF

CFM Watts

1263 156

1266 212

1261 273

1261 334

1263 392

HIGH

411 CFM/ ton

OFF

CFM Watts

1449 218

1458 287

1456 352

1449 421

1447 496

LOW

298 CFM/ ton

OFF

CFM Watts

1207 140

1208 193

1201 252

1203 311

1207 366

NORMAL

339 CFM/ ton

OFF

CFM Watts

1368 190

1374 252

1370 315

1367 381

1367 448

HIGH

389 CFM/ ton

OFF

CFM Watts

1564 264

1577 343

1577 411

1567 484

1561 570

LOW

305 CFM/ ton

OFF

CFM Watts

1534 251

1545 328

1545 394

1536 467

1531 550

NORMAL 347 CFM/

(a)

ton

OFF

CFM Watts

1740 344

1758 444

1762 518

1745 594

1734 684

HIGH (b)

399 CFM/ ton

OFF

CFM Watts

1995 484

2022 629

2030 717

2005 783

1987 828

(a) Factory Default Setting

(b) Airflow must not exceed 1800 cfm in horizontal right, horizontal left, and downflow applications due to condensate blowoff. The 5 ton high tap shall not be

used in these applications.

TEM6A0C48H41SC, TEM6B0C60H51SA HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

OUTDOOR UNIT SIZE
(TONS) 3
3.5
4

SPEED SETTING
LOW NORMAL
HIGH LOW NORMAL HIGH LOW NORMAL HIGH

AIRFLOW SETTING
360 CFM/ ton
400 CFM/ ton
440 CFM/ ton
348 CFM/ ton
387 CFM/ ton
426 CFM/ ton
338 CFM/ ton
375 CFM/ ton
413 CFM/ ton

DIP SWITCH SETTING

SW1

SW2

SW3

SW4

OFF

AIRFLOW POWER
CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts CFM Watts

0.1
1097
112 1215
142 1333
178 1232
147 1366
189 1500
238 1364
188 1509
241 1659
305

EXTERNAL STATIC PRESSURE

0.3
1094
160 1216
196 1338
238 1234
202 1373
252 1511
311 1370
251 1520
315 1674
395

0.5
1086
216 1210
255 1333
300 1228
261 1369
314 1510
377 1366
313 1519
382 1676
466

0.7
1092
271 1211
314 1331
365 1229
322 1366
381 1502
449 1363
379 1511
453 1662
541

0.9
1099
326 1215
369 1332
428 1233
377 1365
447 1498
529 1363
446 1506
535 1654
632

18-GF74D1-1T-EN

Performance and Electrical Data

TEM6A0C48H41SC, TEM6B0C60H51SA HEATING AIRFLOW PERFORMANCE, NO FILTER, NO HEATER

LOW

326 CFM/ ton

OFF

CFM Watts

1637 295

1652 383

1653 453

1641 528

NORMAL 362 CFM/

(a)

ton

OFF

CFM Watts

1814 381

1834 493

1839 570

1820 645

HIGH

398 CFM/ ton

OFF

CFM Watts

1990 481

2017 625

2025 713

2000 779

(a) Factory Default Setting

1632
618 1807
730 1982
826

Table 5. Electrical Data

TEM6A0B24H21SC HEATER DATA

No. of Circuits/ Phases
1/1 1/1 1/1 1/1
2/1
1/3

Capacity kW BTUH

240 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

2.5 *

3.84 13100 16.0

4.80 16400 20.0

7.68 26200 32.0

9.60 32800 40.0

4.80 16400 20.0

9.60 32800 23.1

Maximum Overload Protection
15
25

Capacity kW BTUH
2.88 9800

208 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

2.5 *

13.8

3.60 12300 17.3

5.76 19700 27.7

7.20 24600 34.6

3.60 12300 17.3

7.20 24600 20.0

BAYHTR3517LUG

1/3

14.40 49100 34.6

10.80 36900 30.0

* = Motor Amps

(a) MCA and MOP for circuit 1 contains the motor amps

Maximum Overload Protection
15 20
25
40
50
50
25 30 45

TEM6A0B30H21SC HEATER DATA

No. of Circuits/ Phases
1/1 1/1 1/1 1/1
2/1
1/3

Capacity kW BTUH

240 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

4.3 *

3.84 13100 16.0

4.80 16400 20.0

7.68 26200 32.0

9.60 32800 40.0

4.80 16400 20.0

9.60 32800 23.1

Maximum Overload Protection
15
25

Capacity kW BTUH
2.88 9800

208 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

4.3 *

13.8

3.60 12300 17.3

5.76 19700 27.7

7.20 24600 34.6

3.60 12300 17.3

7.20 24600 20.0

BAYHTR3517LUG

1/3

14.40 49100 34.6

10.80 36900 30.0

* = Motor Amps

(a) MCA and MOP for circuit 1 contains the motor amps

Maximum Overload Protection
15 25
30
40
50
50
25 30 45

Heater Model No.
No Heater BAYHTR1504BRK BAYHTR1504LUG BAYHTR1505BRK BAYHTR1505LUG

No. of Circuits/ Phases
1/1 1/1

TEM6A0C36H31SC, TEM6A0C42H41SC HEATER DATA

Capacity kW BTUH

240 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

4.3 *

Maximum Overload Protection
15

Capacity kW BTUH

208 Volt

Heater Minimum Amps per Circuit
Circuit Ampacity

4.3 *

3.84 13100

16.0

2.88 9800

13.8

4.80 16400

20.0

3.60 12300 17.3

Maximum Overload Protection
15
25
30

18-GF74D1-1T-EN

Performance and Electrical Data

TEM6A0C36H31SC, TEM6A0C42H41SC HEATER DATA

BAYHTR1508BRK BAYHTR1508LUG

1/1

7.68 26200

32.0

5.76 19700 27.7

BAYHTR1510BRK BAYHTR1510LUG

1/1

9.60 32800

40.0

7.20 24600 34.6

BAYHTR1517BRK Circuit 1 (a) BAYHTR1517BRK Circuit 2

9.60 32800

40.0

2/1

4.80 16400

20.0

55 25

7.20 24600 34.6

3.60 12300 17.3

50 25

BAYHTR1523BRK Circuit 1 (a) BAYHTR1523BRK Circuit 2

9.60 32800

40.0

2/1

9.60 32800

40.0

55 50

7.20 24600 34.6

50 45

BAYHTR3510LUG

1/3

9.60 32800

23.1

7.20 24600 20.0

BAYHTR3517LUG

1/3

14.40 49100

34.6

10.80

36900

30.0

* = Motor Amps

(a) MCA and MOP for circuit 1 contains the motor amps

TEM6A0C48H41SC, TEM6B0C60H51SA HEATER DATA

Heater Model No.
No Heater
BAYHTR1504BRK BAYHTR1504LUG BAYHTR1505BRK BAYHTR1505LUG BAYHTR1508BRK BAYHTR1508LUG BAYHTR1510BRK BAYHTR1510LUG BAYHTR1517BRK Circuit 1 (a) BAYHTR1517BRK Circuit 2 BAYHTR1523BRK Circuit 1 (a) BAYHTR1523BRK Circuit 2 BAYHTR1525BRK Circuit 1 (a) BAYHTR1525BRK Circuit 2 BAYHTR1525BRK Circuit 3 BAYHTR1525BRK Circuit 4
BAYHTR3510LUG

No. of Circuits/ Phases
1/1 1/1 1/1 1/1 2/1
2/1
4/1
1/3

Capacity kW BTUH

240 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

6.8 *

3.84 13100 16.0

4.80 16400 20.0

7.68 26200 32.0

9.60 32800 40.0

4.80 16400 20.0

9.60 32800 40.0

6.00 20500 25.0

9.60 32800 23.1

Maximum Overload Protection
15
30

Capacity kW BTUH
2.88 9800

208 Volt

Heater Amps per
Circuit

Minimum Circuit
Ampacity

6.8 *

13.8

3.60 12300 17.3

5.76 19700 27.7

7.20 24600 34.6

3.60 12300 17.3

7.20 24600 34.6

4.50 15400 21.6

7.20 24600 20.0

BAYHTR3517LUG

1/3

14.40 49100 34.6

10.80 36900 30.0

* = Motor Amps

(a) MCA and MOP for circuit 1 contains the motor amps

Maximum Overload Protection
15 30 30 45 60 60 25 60 45 40 30 30 30 35 45

18-GF74D1-1T-EN

Minimum Airflow CFM

TEM6A0B24H21SC, TEM6A0B30H21SC Heater
BAYHTR1504BRK, BAYHTR1504LUG, BAYHTR1505BRK, BAYHTR1505LUG BAYHTR1508BRK, BAYHTR1508LUG BAYHTR1510BRK, BAYHTR1510LUG BAYHTR1517BRK BAYHTR3510LUG BAYHTR3517LUG

Minimum Heater Airflow CFM

With Heat Pump

Without Heat Pump

660

600

780

600

780

600

1050

850

780

600

900

850

TEM6A0C36H31SC, TEM6A0C42H41SC Heater
BAYHTR1504BRK, BAYHTR1504LUG, BAYHTR1505BRK, BAYHTR1505LUG BAYHTR1508BRK, BAYHTR1508LUG BAYHTR1510BRK, BAYHTR1510LUG BAYHTR1517BRK BAYHTR3510LUG BAYHTR3517LUG BAYHTR1523BRK

Minimum Heater Airflow CFM

With Heat Pump

Without Heat Pump

875

675

950

820

1000

820

1000

820

875

820

1000

950

1300

1140

TEM6A0C48H41SC, TEM6B0C60H51SA Heater
BAYHTR1504BRK, BAYHTR1504LUG, BAYHTR1505BRK, BAYHTR1505LUG BAYHTR1508BRK, BAYHTR1508LUG BAYHTR1510BRK, BAYHTR1510LUG BAYHTR1517BRK BAYHTR3510LUG BAYHTR3517LUG BAYHTR1523BRK BAYHTR1525BRK

Minimum Heater Airflow CFM

With Heat Pump

Without Heat Pump

1200

975

1350

975

1350

975

1365

975

1300

975

1365

1120

1365

1300

1810

1505

TEM6A0B24H21SC, TEM6A0B30H21SC Airflow Performance with Auxiliary Heat

Airflow Settings
Low Med-Lo Med-Hi
High

Dip Switch Settings

Switch 7

Switch 8

OFF

Nominal Airflow
601 661 781 973

See following tables for heater application: - Pressure Drop for Electrical Heaters - Minimum Heating
Airflow Matrix (on unit nameplates)

TEM6A0C36H31SC, TEM6A0C42H41SC Airflow Performance with Auxiliary Heat

Airflow Settings
Low Med-Lo Med-Hi
High

Dip Switch Settings

Switch 7

Switch 8

OFF

Nominal Airflow
696 825 1150 1298

See following tables for heater application: - Pressure Drop for Electrical Heaters - Minimum Heating
Airflow Matrix (on unit nameplates)

TEM6A0C48H41SC, TEM6B0C60H51SA Airflow Performance with Auxiliary Heat

Airflow Settings
Low Med-Lo Med-Hi

Dip Switch Settings

Switch 7

Switch 8

OFF

Nominal Airflow
1000 1130 1354

See following tables for heater application: - Pressure Drop for Electrical Heaters - Minimum Heating
Airflow Matrix (on unit

High

OFF

1596

nameplates)

18-GF74D1-1T-EN

Outline Drawing
NOTE: THIS UNIT IS APPROVED FOR INSTALLATION CLEARANCES TO COMBUSTIBLE MATERIAL AS STATED ON THE UNIT RATING NAMEPLATE

DWG D806626

Air Handler Model

TEM6A0B24, 30

46.77

TEM6A0C36, 42

51.27

TEM6A0C48/ TEM6B0C60

57.40

All dimensions are in inches

B 18.50 23.50 23.50

PRODUCT DIMENSIONS

16.50 21.50

16.75 21.75

4.68 7.01

21.50

21.75

4.68

F 7.33 9.66 9.66

H 20.09 24.59 27.19

Flow Control
TXV TXV
TXV

Gas Line Braze 3/4 7/8
7/8

18-GF74D1-1T-EN

Heater Pressure Drop Table

Airflow CFM
1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600

1
0.02 0.02 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01

Number of Racks

Air Pressure Drop -- Inches W.G.

0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.02 0.02

0.06 0.06 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.04

Subcooling Adjustment

4
0.14 0.14 0.13 0.12 0.12 0.11 0.10 0.09 0.09 0.08

Heater Racks

Heater Model

No. of Racks

BAYHTR1504

BAYHTR1505

BAYHTR1508

BAYHTR1510

BAYHTR1517

BAYHTR3510

BAYHTR3517

BAYHTR1523

BAYHTR1525

System Matched with:

Indoor Unit Model No.

Outdoor Model No.

16 SEER HP -- 2 ton 15 SEER HP -- 2 ton 15 SEER HP -- 3 ton

TEM6A0C36H31
TEM6A0B24H21 TEM6A0B30H21 TEM6A0B30H21 TEM6A0C36H31 TEM6A0C42H41

4TWR6024H1000A 4TWX6024H1000A 4A6H6024H1000A
4TWR5024G1000A 4A6H5024G1000A
4TWR5036G1000A 4A6H5036G1000A

All other matches must be charged per the nameplate charging instructions

Subcooling 13 Degrees
14 Degrees 14 Degrees

Subcooling Adjustment for TEM6A0C48H41 & TEM6B0C60H51

OD Equipment AC UNIT HP UNIT 3.5 Tons
HP UNIT = 4 and 5 Tons

Sub-Cooling Charge Specification For AHRI Rated Performance

Up Flow / Horizontal

Down Flow

OD Name Plate OD Name Plate

OD Name Plate
OD Name Plate + 4 Degrees

OD Name Plate

18-GF74D1-1T-EN

Coil Conversion Instructions

Downflow
Follow the conversion steps when installing the air handler in downflow configuration. 1. Remove the front panels panel from the air handler.
The coil and line set panel do not need to be separated. 2. Remove the fasteners on both sides of the coil. 3. Remove the two screws holding the center horizontal bracket and rotate out of place. Retain parts.
Figure 4. All models

6. Rotate and lift the two coil support brackets to remove from front slots in cabinet.
Figure 6. All models

4. Slide the coil assembly out. Remove and discard the horizontal drain pan.
Figure 5. All models
5. On both sides of the cabinet, remove the screws that hold the coil support brackets and retain for later use. Seal the holes to prevent air leakage.
18

Figure 7. All models
Right Left
7. Rotate the unit into the downflow orientation. 8. Pre-drill two clearance holes in the cabinet at
dimples located below the location the screws were removed for the coil support brackets. There is one hole per side. See location of holes. 9. Replace the center horizontal bracket removed in Step 3. Use the screws retained from Step 3 to attach. 10. Place coil support brackets into the lower set of slots and rotate into place. Push downward to lock into place. 11. Secure each bracket with a screw that were previously removed.
18-GF74D1-1T-EN

Figure 8. All models

Coil Conversion Instructions
14. Replace all panels.
Figure 10. All models

12. Slide the coil assembly back into the air handler cabinet as shown.
13. Remove the appropriate knock out for the condensate piping.
Figure 9. All models
Horizontal Right
Follow the conversion steps when installing the air handler in horizontal right configuration. 1. Remove the front panels from the air handler. The
coil and line set panel do not need to be separated. 2. Remove the fasteners on both sides of the coil.
Retain the coil retaining brackets and screws. 3. Remove the two screws holding the center
horizontal bracket and rotate out of place. Retain parts.

18-GF74D1-1T-EN

Coil Conversion Instructions
Figure 11. All models

Figure 13. All models
Snap Tab Feature

4. Make note of the horizontal drain pan orientation (up/down).
5. Slide the coil assembly out.
Figure 12. All models
Important: For Horizontal Right applications, ON SOME MODELS the top panel assembly of the coil must be rotated for proper condensate management.
6. On the right side of the top baffle, position a flathead tip underneath the top baffle flange and pivot the screwdriver downward to release the front tab as shown below.
7. Repeat for right rear tab to release top baffle assembly from coil.

8. Rotate 180 degrees and snap all four corner tabs to lock in place.
9. Remove left side water diverter brackets and screws and reinstall on the right side.
The coil slabs are different and the mount hole locations will vary. See the illustrations on the following pages that correspond to the unit tonnage to see the correct mounting position of the water diverter bracket.
Important: The water diverter brackets are not symmetrical and will vary by tonnage.
Figure 14. All models

18-GF74D1-1T-EN

Coil Conversion Instructions

Figure 15. TEM6A0B24H21SCA, TEM6A0B30H21SCA Top Cap

Remove 2 screws and water diverter bracket

Replace 2 screws and water diverter bracket
Snap Tab Feature

Top Cap
Snap Tab Feature

Figure 16. TEM6A0C36H31SC, TEM6A0C42H41SC
Top Baffle Assembly
Snap Tab Feature

Remove 2 screws and water diverter bracket

Replace 2 screws and water diverter bracket
Snap Tab Feature

Top Baffle Assembly

18-GF74D1-1T-EN

Coil Conversion Instructions

Figure 17. TEM6A0C48H41SC, TEM6B0C60H51SA
Top Baffle Assembly
Snap Tab Feature

Remove 2 screws and water diverter bracket

Replace 2 screws and water diverter bracket

Top Baffle Assembly
Snap Tab Feature

10. Relocate the horizontal drain pan from the left side of the coil to the right side.
11. Remove the drain pan support bracket. Do not discard. Remove the two drain plugs from the front of the drain pan and insert them in the drains at the rear of the drain pan.
Important: When reinstalling coil in Step 13, it is important that the coil corner locks in place under the tab in the side bracket to support the coil weight horizontally.
Figure 18. All models

12. Reinstall the drain pan support bracket. The bracket should be located between the two drain plugs as shown.
Figure 19. All models

13. Slide the coil assembly back into the air handler cabinet.

18-GF74D1-1T-EN

Important: Make sure that the coil corner locks in place under the tab in the side left bracket to support the coil weight in the horizontal right position.
14. Replace the center horizontal bracket using screws removed earlier in Step 3.
15. Replace the two coil retaining brackets removed in a previous step.
16. Replace all panels.

Coil Conversion Instructions
Figure 20. All models

18-GF74D1-1T-EN

Checkout Procedures

The final phase of the installation is the system Checkout Procedures. The following list represents the most common items covered in a Checkout Procedure. Confirm all requirements in this document have been met.

All wiring connections are tight and properly secured.
Voltage and running current are within limits.
All refrigerant lines (internal and external to equipment) are isolated, secure, and not in direct contact with each other or structure.
All braze connections have been checked for leaks. A vacuum of 350 microns provides confirmation that the refrigeration system is leak free and dry.
Final unit inspection to confirm factory tubing has not shifted during shipment. Adjust tubing if necessary so tubes do not rub against each other or any component when unit runs.
Ductwork is sealed and insulated.
All drain lines are clear with joints properly sealed. Pour water into drain pan to confirm proper drainage. Provide enough water to ensure drain trap is primed.

Supply registers and return grilles are open, unobstructed, and air filter is installed.
Indoor blower and outdoor fan are operating smoothly and without obstruction.
Indoor blower motor set on correct speed setting to deliver required CFM. "Blower and fan set screws are tight."
Cover panels are in place and properly tightened.
For gas heating systems, manifold pressure has been checked and all gas line connections are tight and leak free.
For gas heating systems, flue gas is properly vented.
System functions safely and properly in all modes.
Owner has been instructed on use of system and given manual.

About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com.

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

18-GF74D1-1T-EN 14 Oct 2022 Supersedes 18-GF74D1-1R-EN (July 2022)

References

PDFlib PDI 9.0.6 (C /Win64)