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6

Section 3. Unit Preparation

3.1 Prepare The Unit For Installation

STEP 1

 - Check for damage and report promptly to 

the carrier any damage found to the unit.

Note: 

If the unit must be transported in a horizontal 

position, it must be laid on its back (marked “REAR” 
on carton). 

Note: 

After the unit is removed from the carton, 

release pressure from the coil to verify coil is 
pressurized and leak free.

3.2 Unit Accessories Table

2.3 GAF2 Panel Removal

GAF2 contains four panels: Blower, Coil, Line Set 
and Heater. All panels are secured in place with 
Phillipshead screws. Use screwdriver to remove.

Panels must be removed in the following order:
1) Coil
2) Blower
3) Heater 
4) Line Set

3) Heater

2) Blower

1) Coil

4) Line Set

GAM2 Accessory Number

Description

Fits Cabinet Size

BAYSUPFLGCA

Supply Duct Flange C

C

BAYRETFLGCA

Return Duct Flange C

C

BAYFLR2220A

High Velocity Filter Kit, 22” X 20’ X 1” (10 filters)

C

TASB235SB 

Plenum Stand with Integrated Sound Baffle C

C

BAYSRKIT100A

Side Return Kit

C

TASSBK235

Sound Baffle Kit 23.5” Cabinet

C

BAYFRKIT235

Front Return Kit for 23.5” Cabinet

C

BAYICSKIT01A

Internal Condensate Switch Kit

C

BAYSPEKT200A

Single Point Power Entry Kit

C

BAYATXV4248

R-22 TXV conversion kit

GAM2A0C48S4ASC

BAYATXV6060

R-22 TXV conversion kit

GAM2A0C60S5ASC

BAYHHKIT001A

Horizontal Hanger Kit

C

BAYUVCLK001A

UVC Lights

C

BAYLVKIT100A

Low Voltage Conduit Entry Kit

C

BAYINSKT235A

Sound Insulation Kit for 23.5” Cabinet

C

BAYCNDPIP01A

3/4” PVC Threaded Pipe Kit Foam Seal (10 per box)

A to C

GAF2 Accessory Number

 

1

Description

Fits Cabinet Size

BAYSFSCABAA

Supply Duct Flange A1

A1

BAYRETFLGAA

Return Duct Flange A

A1

TASB175SB 

Plenum Stand A with Sound Baffle

A1

BAYFRKIT100

Front Return Kit

A1

BAYBRFBX100

Bottom Return Filter Box

A1

BAYWMKIT001

Wall Mount Kit

A1

BAYLVKIT100A

Low Voltage Conduit Entry Kit

A1

BAYATXV1836A

R-22 TXV Conversion Kit

A1

BAYCNDPIP01A

3/4” PVC Threaded Pipe Kit Foam Seal (10 per box)

A1

 

1

  GAF2A0A36 A1 Cabinet is one piece 17.5” wide

Summary of Contents for GAF2A0A36S3AEC

Page 1: ...s are maximum efficiency optimum performance and the best overall system reliability Note All ratings use a 90 second fan off delay Use your branded thermostat or separate relay to enable this delay N...

Page 2: ...Vertical Installation 19 Section 8 Setting the Unit Horizontal Installation 21 Section 9 Connecting the Duct work 22 Section 10 Refrigerant Line 23 Section 11 Refrigerant Line Brazing 24 Section 12 Co...

Page 3: ...an lead to the formation of condensate Condensate in the presence of chlorides and fluorides from paint varnish stains adhesives cleaning com pounds and cement creates a corrosive condition which may...

Page 4: ...ical all sides Screws saw cuts and other penetrations are allowed in the blower section for installation of Side Return Kit Typical both sides Screws are allowed up to 3 3 4 from the top of the cabine...

Page 5: ...Heater Panel 1 Turn screws on Heater panel 2 Pull panel straight out away from cabinet 3 Set aside Removal of the Line Set panel is required for all refrig erant line brazing and some condensate line...

Page 6: ...lters C TASB235SB Plenum Stand with Integrated Sound Baffle C C BAYSRKIT100A Side Return Kit C TASSBK235 Sound Baffle Kit 23 5 Cabinet C BAYFRKIT235 Front Return Kit for 23 5 Cabinet C BAYICSKIT01A In...

Page 7: ...ns are secure and the plug clips are engaged 4 1 Disassemble cabinet for installation in tight areas or as needed Section 4 Optional Cabinet Disassembly STEP 1 Remove all four front panels See Section...

Page 8: ...g down and out through the blower opening as illustrated STEP 4 Slide Blower assembly out of unit using built in blower support channels and set aside Note Remove the cardboard from the bottom of the...

Page 9: ...two cabinet pieces make sure the gasket remains intact NOTE FOR GAF2 MODELS SKIP TO STEP 8 STEP 7 Use a 5 16 Allen wrench on the locking mechanism on each side of the bottom half of the cabinet to lo...

Page 10: ...paces where the cabinet needs to be rotated through a small opening remove the top panel Use a manual driver to avoid stripping screw holes STEP 10 Continue preparation by following the proper carryin...

Page 11: ...al strap ping be attached to the unit to be used as support mechanisms for carrying or suspension purposes Approved carrying 1 Hold by the cross members within the cabinet or unit top plate and use as...

Page 12: ...x W x D in Blower Compartment in Unit Net Weight lbs GAF2A0A36S3AEC GAF2A0A36S3ASC 39 x 17 5 x 22 NA 112 GAM2A0C48S4ASC 56 9 x 23 5 x 21 8 22 143 GAM2A0C60S5ASC 61 7 x 23 5 x 21 8 22 160 Subtract from...

Page 13: ...rom the factory suitable for three way application Note Entry for low voltage connections is allowed on either side of cabinet 6 2 GAM2 Four Way Conversion Upflow Condensate Drains Refrigerant Connect...

Page 14: ...Refrigerant Connections Horizontal Left Condensate Drains Low Voltage Connections inside unit Refrigerant Connections Horizontal Left Configuration Low Voltage Connections inside unit Horizontal Right...

Page 15: ...it to that orientation Note The air handlers are shipped from the factory suitable for three way application Note Entry for low voltage connections is allowed on either side of cabinet 6 3 GAF2 Three...

Page 16: ...Refrigerant Connections Horizontal Left Condensate Drains Low Voltage Connections inside unit Refrigerant Connections Horizontal Left Configuration Low Voltage Connections inside unit Horizontal Right...

Page 17: ...ve or utility room Review local codes to determine limitations if the unit is installed without a return air duct Ducted Return Non Ducted Return Supply Duct Plenum Accessory with safety guard CAUTION...

Page 18: ...and future maintenance Installation of the air handler must be made prior to or at the same time as the installation of the outdoor unit in order to allow access for refrigerant lines Consider the ov...

Page 19: ...l Closet Installation 7 3 Upflow Installation TASB Installation 1 Assemble the TASB using the TASB s Installer Guide Contact your distributor for TASB accessories TASB235SB for use with 23 5 cabinets...

Page 20: ...1 Assemble the plenum using the plenum s Installer Guide Airflow On units with sheet metal returns Return plenum must be flanged Sheet metal drill point screws must be 1 2 in length or shorter Typica...

Page 21: ...any location other than the ones illustrated in this Installer Guide or in an approved ac cessory s Installer Guide Important Make certain that the unit has been in stalled in a level position to ensu...

Page 22: ...he air handler Reference ACCA Manual D Manual S and Manual RS along with the air handler Product Data and Service Facts for additional information Note Side return is not approved without Side Return...

Page 23: ...red 2 All listed systems are tested with 25 feet of refrigeration tubing the rated tubing diameters are located in the electronic performance data system 3 If the refrigeration lines exceed 60 feet in...

Page 24: ...or a wet rag must be wrapped around the suction line between the Bulb and the braze joint to protect the Bulb from failure due to overheating Caution This coil is pressurized with 8 12 psig of dry air...

Page 25: ...ion line 2 Wrap the TXV sensing bulb with a wet rag 3 Braze the refrigerant line connections Important Care must be taken during solder cap removal and brazing to avoid damage to unit compo nents and...

Page 26: ...ep 3 before installing the Line Set panel 4 Tighten screws on the Line Set panel Important Do not open the service valves until the refrigerant lines and indoor coil leak check and evacu ation are com...

Page 27: ...panels Slope the drain lines downward a minimum of 1 4 per foot support per local codes A 1 5 minimum distance from the coil panel to the inside of the condensate tubing is recommended for coil panel...

Page 28: ...cation needs Provide a means of drainage to prevent winter freeze up of condensate line Optional depend ing on climate and application needs STEP 6 Support the condensate piping outside the unit per l...

Page 29: ...5 diameter hole size in side of blower cabinet at location shown on illustration A 3 8 bushing is supplied in the doc pack STEP 3 Route control wiring to unit and Insert Low voltage wiring Note After...

Page 30: ...G Y Y Yellow R Red O Orange Comfort Control Air Handler Field wiring Yellow Blue Black X2 Red Orange Heat Pump Red Blue Y e l l o w Green W2 Pink W3 Brown W1 White Air Handler Hook up Diagram 1 Stage...

Page 31: ...osed to live electrical components could result in death or serious injury WARNING Note GAF2 air handlers ONLY allow top position for conduit connection Conduit Entry Points STEP 1 Route High Voltage...

Page 32: ...y use a field supplied 1 2 5 8 maximum length screw and wire tie to hold the wires to the top center of the Heater Compartment STEP 4 If an electric heater IS NOT being installed remove the pigtail ha...

Page 33: ...re starting the air handler NOTE After replacing all panels loosen the Line Set Panel screws approximately 1 4 1 2 turn This will improve the seal between the Heater Panel and Line Set Panel GAF2 air...

Page 34: ...6 Unit Outline Drawings GAM2 16 1 GAM2 Outline Drawings MODEL NO A B C D E F H FLOW CONTROL GAS LINE BRAZE GAM2A0C48 56 9 46 7 20 5 23 5 20 5 10 3 24 2 TXV 7 8 GAM2A0C60 61 7 51 5 20 5 23 5 20 5 10 3...

Page 35: ...35 GAF2 16 2 GAF2 Outline Drawings...

Page 36: ...ectrical power disconnect s to apply power to the indoor and outdoor units STEP 4 Set the system thermostat to ON OFF DONE CANCEL ON OFF ON DONE CANCEL STEP 1 Make sure all panels are securely in plac...

Page 37: ...4VAC to the OD unit 2 R G contacts close on comfort control sending 24VAC to the blower relay 3 Relay contacts 1 and 3 close 4 The blower will now run on the selected speed Speed is field selectable 5...

Page 38: ...ll refrigerant lines 4 Verify that all electrical connections are tight 5 Check all duct outlets they must be open and unrestricted 6 Check drain lines and be sure all joints are tight 7 Be sure the r...

Page 39: ...39...

Page 40: ...ighway Tyler TX 75707 www trane com The manufacturer has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice Trane...

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