Trane GAF2A0A36S3AEC Instructions de montage

18-GJ47D1-5

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES.

Important: This Document is customer property and is to remain with 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 pur-

chaser’s purposes, the matter should be referred to your

installing dealer or local distributor.

Note: The manufacturer recommends installing ONLY

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.

Note: All ratings use a 90-second fan off delay. Use

your branded thermostat or separate relay to enable this

delay.

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.

Important: The GAM2A0C60S5ASC air handler applied

in the horizontal configuration should not exceed 2000

CFM. Airflow above 2000 CFM could result in water

blow-off. For verification, see airflow table.

50 HZ Convertible Air

Handlers 3 – 5 Ton

Black Epoxy Coil

GAF2A0A36S3AEC

Standard Coil

GAF2A0A36S3ASC

GAM2A0C48S4ASC

GAM2A0C60S5ASC

Installer’s Guide

GAF2A0A36S3AEC

GAF2A0A36S3ASC

GAM2A0C48S4ASC

GAM2A0C60S5ASC

Note: Representative illustrations only included in

this document. Most illustrations display the GAM2

upflow configuration.

Table of Contents

Section 1. Safety Information.......................................................................... 3

Section 2. Unit Design......................................................................................... 4

Section 3. Unit Preparation.............................................................................. 6

Section 4. Optional Cabinet Disassembly................................................ 7

Section 5. Place Unit at Location................................................................ 11

Section 6. Unit Location Considerations................................................ 12

Section 7. Setting the Unit - 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. Condensate Drain Piping....................................................... 27

Section 13. Electrical - Low Voltage........................................................... 29

Section 14. Electrical - High Voltage.......................................................... 32

Section 15. Filters................................................................................................ 34

Section 16. Unit Outline Drawings.............................................................. 35

Section 17. Start Up............................................................................................ 37

Section 18. Sequence of Operation........................................................... 38

Section 19. Checkout Procedures.............................................................. 38

Section 1. Safety Information

▲

WARNING

SAFETY HAZARD! This information is intended for use

by individuals possessing adequate backgrounds of electrical and

mechanical experience. Any attempt to repair a central air condition-

ing product may result in personal injury and/or property damage.

The manufacturer or seller cannot be responsible for the interpreta-

tion of this information, nor can it assume any liability in connection

with its use.

LIVE ELECTRICAL COMPONENTS! During instal-

lation, testing, servicing, and troubleshooting of this product, it may

be necessary to work with live electrical components. Failure to fol-

low all electrical safety precautions when exposed to live electrical

components could result in death or serious injury.

▲CAUTION

▲

WARNING

CORROSION HAZARD! To prevent shortening its service

life, the air handler should not be used during the ﬁnishing phases

of construction. 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 com-

pounds, and cement creates a corrosive condition which may cause

rapid deterioration of the cabinet and internal components.

Important: Due to the unique design of this unit, which

allows the electrical wiring to be routed within the insula-

tion, do not screw, cut, or otherwise puncture the unit

cabinet in any location other than the ones illustrated in

this Installer Guide or in an approved accessory’s In-

staller Guide.

Important: Under no conditions should metal strapping

be attached to the unit to be used as support mecha-

nisms for carrying or suspension purposes.

SAFETY HAZARD! Sharp Edge Hazard. Be careful of sharp

edges on equipment or any cuts made on sheet metal while install-

ing or servicing. Personal injury may result.

▲CAUTION

HAZARDOUS VAPORS! Do not install an air handler

with a non-ducted return in the same closet, alcove, or utility

room as a fossil fuel device. Hazardous vapors can be distributed

throughout the conditioned space and equipment damage can

result.

Section 2. Unit Design

2.1 Cabinet Penetration

Important: Due to the unique design of this unit, which

allows the electrical wiring to be routed within the insu-

lation, do not screw, cut, or otherwise puncture the unit

cabinet in any location other than the ones illustrated.

Note: Remove the cardboard from the bottom of the

blower. Cut the tie wrap and remove the foam block

located at the motor.

2.2 GAM2 Panel Removal

The GAM2 units contain four (4) access panels:

Blower/Filter, Coil, Line Set, and Heater.

The Blower/Filter panel is removed by loosening the

thumb screw knobs.

1. Unscrew knobs on Blower/Filter panel until loose

from door. Rubber washers will hold the screw

knob to the door.

2. Pull top of panel out, away from cabinet.

3. Lift panel up out of channel.

4. Set aside.

Screws can be drilled

into bottom of unit.

(1/2” max. screw length)

(Typical 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 cabinet

(heater compartment).

(Typical both sides)

Screws for ange kit

attachment are allowed

along the interior of

the cabinet (see arrows)

(Typical all sides)

No penetrations

allowed.

(Typical all sides)

Screws allowed only in

the rst 3/4” of front

bottom of unit (in cross

member)

GAM2

GAF2

Screws can be drilled

into bottom of unit.

(1/2” max. screw

length)

(Typical all sides)

Screws, saw cuts, and other

penetrations are allowed in

the blower section for low

voltage wiring or installation

of Side Return Kit.

(Typical both sides)

Screws are allowed up to 3- 3/4”

from the top of the cabinet

(heater compartment).

(Typical both sides)

Screws for flange kit

attachment are allowed

along the interior of

the cabinet (see arrows)

(Typical all sides)

No penetrations

allowed.

(Typical all sides)

Screws allowed only

in the first 3/4” of front

bottom of unit (in

cross member

)

The Coil, Line Set, and Heater panels are secured in

place with Phillips head screws. Use screwdriver to

remove.

#3 Size Phillips

Coil and Heater panels must be removed prior to re-

moving the Line Set panel.

To remove Coil Panel:

1. Turn screws on Coil panel.

2. Pull top of panel out, away from cabinet.

3. Pull panel up and out of channel.

4. Set aside.

To remove 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 assembly

depending on your orientation.

To remove Line Set panel:

1. Remove both Heater and Coil panels.

2. Turn screws on Line Set Panel.

2. Pull panel straight out, away from cabinet.

3. Set aside.

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.

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 1Description 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

1GAF2A0A36 A1 Cabinet is one piece 17.5” wide

Note: If the unit must be transported in a horizontal

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

on carton).

Note: To reassemble cabinet, follow the steps in

reverse order. Ensure electrical connections 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

2.2.

STEP 2 - Remove the two screws on the seal bar and

pull the seal bar straight out.

STEP 3 - Disconnect all wiring connections routed to

the blower assembly.

Blower Electrical

Connections

Screw locations

Diverter

STEP 5 - Remove airflow diverter, if present, from

the bottom of coil drain pan by gripping the plastic

diverter, using your thumbs to spread the top of the

diverter slightly outwards, and then pulling 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

blower. Cut the tie wrap and remove the foam block

located at the motor.

STEP 6 - Slide Coil assembly out of unit using built-

in coil support channels and set aside. Coil Support

Channel

Blower Support

Channel

STEP 8 - Lift the Coil section up and away from the

Blower section. Set aside.

Note: When separating the 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 loosen the locking mechanism. The locks

loosen by turning counter-clockwise approximately

3/4 of a turn.

STEP 9 - For extremely tight spaces 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 carrying procedures shown in Section 5.

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