Trane GAM5A0C48M41SAA User Manual

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

Trane GAM5A0C48M41SAA Specifications

General

Nominal Cooling Capacity (Tons)	4
Width (in)	21
Cabinet Construction	Galvanized Steel
Shipping Weight	170
Phase	1
Voltage	208/230
Maximum External Static Pressure	0.8
Insulation	Foil-faced
Height	46.5
Length	21

Summary

Safety Information and Warnings

General Safety Precautions

Covers electrical, vapor, corrosion, and sharp edge hazards during installation and servicing.

Ductwork Connection Guidelines

Duct Connection Best Practices

Refrigerant Line Specifications

Refrigerant Line Connection Sizes

Table listing vapor and liquid line connection sizes for each air handler model.

Refrigerant Line Brazing

Brazing Preparation and Steps

Procedures for preparing refrigerant lines, including panel removal, sensor protection, and initial connection.

Refrigerant Line Evacuation

Leak Testing and Evacuation

Steps for leak checking, achieving specified micron levels, and replacing the line set panel.

Condensate Drain Piping Installation

Condensate Drain Piping Considerations

Connecting Condensate Drains

Low Voltage Electrical Connections

Low Voltage Wire Length Limits

Table specifying maximum total lengths for low voltage wiring based on wire gauge.

Low Voltage Hook-up Instructions

Initial steps for routing control wiring and preparing connections to the unit.

Low Voltage Wiring and Control Board Setup

Control Board Handling and Orientation

Procedures for removing, reorienting, and reinstalling the control board for specific installation types.

Low Voltage Wiring Diagrams

Cooling Mode Wiring Connections

Diagram and notes for making low voltage connections for cooling operation and thermostat control.

Low Voltage Wiring for Heat Pump

Heat Pump Wiring and Refrigerant Switch

Wiring for heat pump operation, including refrigerant type selection via the EVC switch.

High Voltage Electrical Connections

High Voltage Power Supply Requirements

Matching high voltage supply to the unit's nameplate and adhering to national, state, and local codes.

Making High Voltage Connections

Steps for selecting conduit entry points and routing high voltage wiring into the unit.

System Start-Up Procedures

System Charge Adjustments

System Start-Up Sequence

Powering Up and Initial System Check

Final Checkout Procedures

Operational and Checkout Checklist