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Trane GAM5A0A18M11SAA User Manual

Trane GAM5A0A18M11SAA
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 GAM5A0A18M11SAA Specifications

General IconGeneral
Product CategoryAir Handlers
Model NumberGAM5A0A18M11SAA
Nominal Cooling Capacity1.5 Tons
Voltage208/230V
Phase1
Motor TypePSC
Cabinet TypeUpflow/Horizontal
Filter TypeDisposable
Width17.5 inches
Height44 inches

Summary

Installer's Guide: Convertible Air Handlers

Safety Information

Critical Safety Precautions

Details hazards like electrical, vapor, corrosion, and sharp edges, with specific warnings.

Unit Configuration and Orientation

Ductwork Connections

Refrigerant Line Installation

Refrigerant Line Sizing

Provides a table of vapor and liquid line connection sizes for various models.

Refrigerant Line Brazing

Preparing Refrigerant Lines for Brazing

Details panel removal and preparation steps before brazing refrigerant lines.

Brazing, Pressurizing, and Leak Checking

Covers brazing connections, pressurizing the system with nitrogen, and performing leak checks.

System Evacuation and Panel Reassembly

Details system evacuation procedures and replacing the line set panel.

Condensate Drain Piping

Condensate Drain Installation Rules

Lists important considerations for condensate drain lines: compliance, routing, slope, and connections.

Connecting Condensate Piping

Describes the steps for connecting the primary and secondary condensate drains using PVC pipe.

Low Voltage Electrical Connections

Initial Low Voltage Hook-up Steps

Describes routing control wiring and removing the coil panel for access.

Cooling Mode Wiring Diagram

Illustrates the low voltage wiring connections for cooling mode operation.

Heat Pump and Wiring Securement

Covers heat pump wiring, securing cables, and setting the refrigerant switch.

High Voltage Electrical Connections

System Start-Up Procedures

System Charge Adjustment Guidelines

Provides tables for system charge adjustments to maintain rated HSPF based on unit combinations.

Initial System Power-Up

Details the steps for ensuring panels are secure, powering up the system, and setting the thermostat.

Sequence of Operation

Operational Modes Explained

Describes the sequence of operation for various modes including fan, heat pump, cooling, and electric heat.

System Checkout and Final Procedures

Final Installation Checkout Checklist

Provides a comprehensive checklist for verifying correct installation and operation before completion.

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