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Trane GAM5A0A24M21SAA User Manual

Trane GAM5A0A24M21SAA
40 pages
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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
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Trane GAM5A0A24M21SAA Specifications

General IconGeneral
Model NumberGAM5A0A24M21SAA
CategoryAir Handlers
Voltage208/230V
Phase1
Maximum External Static Pressure0.8 in. w.c.
CabinetGalvanized Steel
Blower TypeMulti-speed
Nominal Cooling Capacity2 Tons
Nominal Heating Capacity24000 BTU/H

Summary

Section 1. Safety Information

General Safety Warnings

Covers hazards like live electrical components, hazardous vapors, sharp edges, and general safety.

Corrosion Hazard Warning

Warns against using the unit during finishing phases to prevent corrosion from environmental contaminants.

Section 4. Optional Cabinet Disassembly

Cabinet Disassembly for Tight Spaces

Instructions for disassembling the unit cabinet for installation in confined or tight areas.

Section 7. Setting the Unit - Vertical Installation

Section 8. Setting the Unit - Horizontal Installation

Section 9. Connecting the Duct work

Section 10. Refrigerant Line

Refrigerant Line Connection Sizes

Table detailing vapor and liquid line connection sizes for various GAM5 air handler models.

Section 11. Refrigerant Line Brazing

Refrigerant Line Brazing Steps

Detailed instructions for safely brazing refrigerant lines to the unit's internal connections.

Section 12. Condensate Drain Piping

Section 13. Electrical - Low Voltage

Low Voltage Wiring Hook-up

Instructions for routing control wiring, removing coil panel, and preparing for connections.

Cooling and Heat Pump Wiring Diagrams

Diagrams illustrating wiring connections for cooling and heat pump system operation.

Securing Wiring and Setting Refrigerant Switch

Procedures for securing wiring harnesses and configuring the refrigerant type switch.

Final Low Voltage Connection Steps

Steps for sliding the control plate into the pocket and replacing the coil access panel.

Section 14. Electrical - High Voltage

High Voltage Electrical Connections

Procedures for routing high voltage wiring and selecting appropriate conduit entry points.

Section 15. Time Delay Switch Adjustment

Section 18. Start Up

Section 19. Sequence of Operation

GAM5 Operational Sequence Details

Explains unit operation in various modes like cooling, heating, and continuous fan with EVC and TDR functions.

Section 20. Checkout Procedures

Final Installation Checkout Checklist

A comprehensive checklist to verify proper installation, wiring, and system performance.

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