Trane GAM5 Series Assembly instructions

18-GJ04D1-2

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

Important: This Document is customer property and is to remain with this unit. Please return to service information

pack upon completion of work.

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 informa-

tion 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.

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 efficien-

cy, optimum performance, and the best overall system

reliability.

Convertible Air Handlers

1-1/2 – 5 Ton

GAM5A0A18M11SAA

GAM5A0A24M21SAA

GAM5A0B30M21SAA

GAM5A0B36M31SAA

GAM5A0C42M31SAA

GAM5A0C48M41SAA

GAM5A0C60M51SAA

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.

The GAM5 air handlers will only use

the following internal electric heaters:

BAYEAAC05BK1AA

BAYEAAC05LG1AA

BAYEAAC08BK1AA

BAYEAAC08LG1AA

BAYEAAC10BK1AA

BAYEAAC10LG1AA

BAYEABC15BK1AA

BAYEABC20BK1AA

BAYEACC25BK1AA

Installer’s Guide

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. ............................................................... 12

Section 6. Unit Location Considerations. ............................................... 13

Section 7. Setting the Unit - Vertical Installation................................. 18

Section 8. Setting the Unit - Horizontal Installation. ......................... 20

Section 9. Connecting the Duct work. ...................................................... 21

Section 10. Refrigerant Line. ......................................................................... 22

Section 11. Refrigerant Line Brazing. ....................................................... 23

Section 12. Condensate Drain Piping....................................................... 26

Section 13. Electrical - Low Voltage........................................................... 28

Section 14. Electrical - High Voltage.......................................................... 33

Section 15. Time Delay Switch Adjustment. .......................................... 35

Section 16. Filters................................................................................................ 35

Section 17. Unit Outline Drawing. ............................................................... 36

Section 18. Start Up............................................................................................ 37

Section 19. Sequence of Operation. .......................................................... 39

Section 20. Checkout Procedures. ............................................................. 40

Note: Representative illustrations only included in this

document. Most illustrations display the upflow configu-

ration.

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

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)

Important: Due to the unique design of this unit,

which allows the electrical wiring to be routed within

the insulation, do not screw, cut, or otherwise punc-

ture the unit cabinet in any location other than the

ones illustrated.

Important: Under no conditions should metal strap-

ping be attached to the unit to be used as support

mechanisms for carrying or suspension purposes.

2.2 Panel Removal

The unit contains four (4) access panels: Blower/Fil-

ter, Coil, Line Set, and Heater.

The Blower/Filter panel is removed using 1/4 turn

thumb screws.

1. Turn thumb screws on Blower/Filter panel.

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

3. Lift panel up out of channel.

4. Set aside.

The Coil, Line Set, and Heater panels are removed

using Phillips head screws.

#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 bottom of panel out, away from cabinet.

3. Pull panel down 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.

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: The unit is shipped “upside-down” in the

downflow orientation and may be easiest to trans-

port to the job site in that orientation. 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,

depress the Schrader valve to verify coil is pressur-

ized.

3.2 Unit Accessories

Accessory Number Description Fits Cabinet Size

BAYEAAC05BK1A Electric Heater, 5kW, Breaker, 24V Control, 1 Ph A to C

BAYEAAC05LG1A Electric Heater, 5kW, Lugs, 24V Control, 1 Ph A to C

BAYEAAC08BK1A Electric Heater, 8kW, Breaker, 24V Control, 1 Ph A to C

BAYEAAC08LG1A Electric Heater, 8kW, Lugs, 24V Control, 1 Ph A to C

BAYEAAC10BK1A Electric Heater, 10kW, Breaker, 24V Control, 1 Ph A to C

BAYEAAC10LG1A Electric Heater, 10kW, Lugs, 24V Control, 1 Ph A to C

BAYEABC15BK1A Electric Heater, 15kW, Breaker, 24V Control, 1 Ph B to C

BAYEABC20BK1A Electric Heater, 20kW, Breaker, 24V Control, 1 Ph B to C

BAYEACC25BK1A Electric Heater, 25kW, Breaker, 24V Control, 1 Ph C

BAYSUPFLGA Supply Duct Flange A A

BAYSUPFLGBA Supply Duct Flange B B

BAYSUPFLGCA Supply Duct Flange C C

BAYRETFLGAA Return Duct Flange A A

BAYRETFLGB Return Duct Flange B B

BAYRETFLGCA Return Duct Flange C C

TASB175 Plenum Stand A A

TASB215 Plenum Stand B B

TASB235 Plenum Stand C C

BAYSRKIT100A Side Return Kit A to C

BAYICSKIT01A Internal Condensate Switch Kit A to C

BAYHHKIT001A Horizontal Hanger Kit A to C

BAYUVCLK001A UVC Lights A to C

BAYLVKIT100A Low Voltage Conduit Entry Kit A to C

Table 3.2

Note: The unit is shipped “upside-down” in the

downflow orientation and may be easiest to transport

to the job site in that orientation. 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.

Blower Electrical

Connections

Diverter

STEP 4 - Remove airflow diverter 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 2 - Disconnect the two wiring connections

routed to the blower assembly.

STEP 3 - Slide Blower assembly out of unit using

built-in blower support channels and set aside.

Blower Support

Channel

Wiring

Connections

Coil Support

Channel

STEP 5 - Disconnect wires to the EEV motor and

sensors inside the coil assembly. Cut the wire ties

on those wire harnesses.

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

in coil support channels and set aside.

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 8 - Lift the Coil section up and away from the

Blower section. Set aside.

This manual suits for next models

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