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Trane Technologies GAM5B0A18M11SB User Manual

Trane Technologies GAM5B0A18M11SB
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Installers Guide
April 2020
18-GJ04D1-15A-EN
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating,
and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or
altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all pre-
cautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
Standard Coil Black Epoxy Coil
GAM5B0A18M11SB GAM5B0A18M11EA
GAM5B0A24M21SB GAM5B0A24M21EA
GAM5B0B30M21SB GAM5B0B30M21EA
GAM5B0B36M31SB GAM5B0B36M31EA
GAM5B0C42M31SB GAM5B0C42M31EA
GAM5B0C48M41SB GAM5B0C48M41EA
GAM5B0C60M51SB GAM5B0C60M51EA
Note: “Graphics in this document are for representation only.
Actual model may differ in appearance.”
Convertible Air Handlers
1-1/2 – 5 Ton
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Trane Technologies GAM5B0A18M11SB Specifications

General IconGeneral
Product TypeAir Handler
SeriesGAM5
Phase1
Cooling Capacity1.5 tons
Maximum Fuse Size15 Amps
Filter TypeStandard

Summary

Section 1. Safety Information

Electrical Safety Hazards

Safety warnings related to live electrical components and general electrical hazards.

Chemical and Corrosion Hazards

Warnings concerning hazardous vapors, corrosion, and chemical exposure.

Physical Safety Hazards

Cautions regarding sharp edges, panel damage, and general physical safety.

Section 2. Unit Design

Cabinet Penetration Guidelines

Rules for drilling and puncturing the unit cabinet for wiring and accessories.

Panel Removal Procedures

Instructions for removing the blower/filter panel using thumb screws.

Section 3. Unit Preparation

Prepare Unit for Installation

Steps for checking unit for damage and preparing it for installation.

Available Unit Accessories

List of accessories with descriptions and compatible cabinet sizes.

Section 4. Optional Cabinet Disassembly

Disassemble Cabinet for Tight Spaces

Steps for disassembling the unit cabinet for installation in confined spaces.

Section 5. Place Unit at Location

Approved Unit Carrying Methods

Safe methods for lifting and carrying the unit, emphasizing secure handling.

Section 6. Unit Location Considerations

Unit Dimensions and Weight

Table detailing model dimensions, weight, and blower compartment size.

Four-Way Unit Conversion

Instructions for orienting the unit for upflow, downflow, and horizontal configurations.

Non-Ducted Application Guidelines

Guidelines for installing the air handler with a non-ducted return.

Ducted Application Guidelines

Guidelines for installing the air handler with ducted supply and return air.

Additional Unit Preparation Points

Considerations for noise, code compliance, side returns, and clearances.

Section 7. Vertical Installation

Vertical Installation Clearance

Minimum height and clearance requirements for vertical installation.

Upflow Installation Procedures

Instructions for TASB installation and typical upflow setup.

Plenum Installation Steps

Steps for assembling the plenum for air handler installation.

Downflow Installation Steps

Guidelines for site preparation and unit positioning for downflow installation.

Section 8. Horizontal Installation

Horizontal Installation Notes

Important considerations for horizontal installation, including support and drain pan needs.

Section 9. Duct Work Connection

Duct Connection Best Practices

Guidelines for connecting ducts, sealing, and insulating for optimal performance.

Section 10. Refrigerant Lines

Refrigerant Line Size Guide

Table listing vapor and liquid line connection sizes for various models.

Refrigerant System Diagram

Diagram illustrating refrigerant lines, TXV, and equalizer line placement.

Section 11. Refrigerant Line Brazing

Braze Refrigerant Lines Safely

Step-by-step brazing instructions with emphasis on heat protection.

Section 12. Condensate Drain Piping

Condensate Drain Setup Rules

Rules for condensate drain plumbing, compliance with codes, and proper slope.

Connect Condensate Drains

Detailed steps for connecting condensate drain piping for different unit orientations.

Section 13. Low Voltage Electrical

Low Voltage Wire Length Limits

Table of maximum wire lengths for different AWG sizes.

Low Voltage Wiring Setup

Steps for drilling, routing, and securing low voltage control wiring.

1 Stage Cooling Wiring Diagram

Wiring schematic for connecting the air handler to a single-stage cooling system.

1 Stage Heat Pump Wiring Diagram

Wiring schematic for connecting the air handler to a single-stage heat pump.

2 Stage Cooling Wiring Diagram

Wiring schematic for connecting the air handler to a two-stage cooling system.

2 Stage Heat Pump Wiring Diagram

Wiring schematic for connecting the air handler to a two-stage heat pump.

Section 14. High Voltage Electrical

High Voltage Power Supply Match

Requirement to match high voltage power supply to the equipment's nameplate.

High Voltage Connection Steps

Procedure for selecting conduit entry points and routing high voltage wiring.

Secure Coil Panel Bracket

Instructions for fastening the coil panel bracket and seal plate correctly.

Section 15. Unit Outline Drawings

Minimum Clearance Requirements

Table specifying minimum clearances to combustible materials and for service access.

Unit Dimensions and Specs

Table listing unit dimensions (A-H) and refrigerant line sizes.

Section 16. Filter Installation

Filter Installation Guidelines

Rules for filter installation, maintenance, and airflow velocity limits.

Section 17. System Start Up

System Charge Adjustments

Instructions for system charging based on indoor/outdoor unit compatibility.

System Start-Up Procedure

Steps for powering on the system and setting the thermostat to initiate operation.

Section 18. Sequence of Operation

Operational Sequences Explained

Detailed description of air handler operation in various cooling and heating modes.

Electric Heating Operation

Explanation of the operational sequence for electric heating mode.

Section 19. Checkout Procedures

Final System Checkout List

Checklist to verify proper installation and system operation before final use.

Section 20. 2-Stage Adjustments

AC Model Stage Adjustments

Tables for adjusting speed taps for 2-stage outdoor AC cooling models.

HP Model Stage Adjustments

Tables for adjusting speed taps for 2-stage outdoor HP models.

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