Trane Technologies GAM5B0B30M21EA User Manual

Installer’s 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

Trane Technologies GAM5B0B30M21EA Specifications

General

Cooling Capacity (BTU)	30000
Heating Capacity (BTU)	30000
Nominal Cooling Capacity	2.5 Tons
Heating Type	Electric
Maximum Fuse Size	30
Fan Motor HP	1/2
Voltage	208/230

Summary

Section 1. Safety Information

Electrical Safety Precautions

Electrical safety precautions during installation and servicing to prevent injury or death.

Hazardous Vapors Warning

Warning against installing unit with non-ducted return near fossil fuel devices.

Corrosion Hazard Warning

Sharp Edge Hazard Warning

Caution about sharp edges on equipment during installation or servicing.

Section 3. Unit Preparation

Unit Preparation for Installation

Steps for checking unit for damage and preparing it after unpacking.

Section 7. Setting the Unit – Vertical Installation

Vertical Installation Considerations

Section 8. Setting the Unit – Horizontal Installation

Horizontal Installation Considerations

Section 9. Connecting the Duct work

Duct Connection Considerations

Section 10. Refrigerant Line

Section 11. Refrigerant Line Brazing

Refrigerant Line Brazing Procedure

Step-by-step instructions for brazing refrigerant lines to the indoor coil.

Brazing Connections and Bulb Protection

Procedure for brazing, including heat sensitive bulb protection.

Pressurizing and Leak Checking

Pressurizing lines with nitrogen and checking for leaks.

System Evacuation and Verification

Evacuating the system using a micron gauge and verifying completion.

Section 12. Condensate Drain Piping

Condensate Drain Piping Considerations

Condensate Drain Piping Connection

Step-by-step instructions for connecting condensate drain piping for various configurations.

Section 13. Electrical – Low Voltage

Low Voltage Hook-up Instructions

Step-by-step instructions for routing and connecting low voltage wiring.

Section 14. Electrical – High Voltage

High Voltage Power Supply Requirements

High Voltage Electrical Connection Steps

Steps for routing high voltage wiring and making electrical connections.

Electric Heater Wiring Connections

Connecting pigtail harness or wiring for electric heaters.

Secure High Voltage Wiring

Securing high voltage wires within the heater compartment.

Securing the Coil Assembly

Instructions for securing the coil panel bracket and seal plate.

Section 17. Start Up

System Charge Adjustments

Table of indoor/outdoor unit combinations and required sub-cooling for charging.

System Start-Up Procedure

Step-by-step procedure for powering up the system and setting the thermostat.

Section 19. Checkout Procedures

Operational and Checkout Procedures

Checklist of final installation steps and operational verifications.

Section 20. 2-Stage Outdoor Adjustment

2-Stage AC Outdoor Unit Adjustments

2-Stage Heat Pump Outdoor Unit Adjustments