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Carrier 38GXM series User Manual

Carrier 38GXM series
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Installation Instructions
NOTE: Read the entire instruction manual before starting the installation,
38GXM
40GXM
TABLE OF CONTENTS
PAGE
PARTS LIST ....................................... 2
SAFETY CONSIDERATIONS ......................... 3
SYSTEM REQUIREMENTS .......................... 3
DIMENSIONS ...................................... 4
CLEARANCES ..................................... 5
INSTALLATION GUIDE ............................. 6
INDOOR UNIT INSTALLATION ....................... 6
OUTDOOR UNIT INSTALLATION .................. 7 - 9
SYSTEM VACUUM AND CHARGE .................... 9
START-UP ........................................ 10
TROUBLESHOOTING .......................... 11 - 13
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Carrier 38GXM series Specifications

General IconGeneral
Cooling Capacity (BTU/h)9, 000 - 36, 000
RefrigerantR-410A
FeaturesInverter Technology, Quiet Operation, Optional WiFi Control
Voltage Options208/230V
Control SystemOptional Wired Remote Controller, Optional WiFi Control
Compressor TypeInverter-driven rotary

Summary

SAFETY CONSIDERATIONS

Electrical Shock Hazard

Warning regarding potential death or injury from electrical shock.

Equipment Damage Hazard

Caution concerning potential damage or improper operation due to improper installation.

General Installation and Servicing

Covers installation, start-up, and servicing of the 38GXM outdoor unit with 40GXM indoor units.

SYSTEM REQUIREMENTS

Piping Requirements

Details refrigerant line lengths, sizes, conversion joints, and refrigerant charge requirements.

Power and Control Cable Requirements

Specifies requirements for power and control cables between units.

DIMENSIONS - INDOOR

DIMENSIONS - OUTDOOR

CLEARANCES - INDOOR

CLEARANCES - OUTDOOR

INSTALLATION GUIDE

Installation Location Guidelines

Guidelines for selecting optimal locations for indoor and outdoor units.

Indoor Unit Mounting Plate Installation

Step-by-step instructions for installing the indoor unit mounting plate.

Piping and Wiring Routing

Instructions for drilling holes, routing refrigerant lines, drain, and wiring.

Refrigerant Line Routing Details

Guidance on routing refrigerant lines and considerations for different exit points.

OUTDOOR UNIT INSTALLATION

Piping Connections to Outdoor Unit

Procedures for connecting refrigerant piping to the outdoor unit.

Outdoor Unit Wiring Connections

Instructions for connecting power and interconnecting wiring to the outdoor unit.

Equipment Damage Hazard

Warning about potential equipment damage from improper wiring practices.

INSTALL ALL POWER, INTERCONNECTING WIRING, AND PIPING TO INDOOR UNIT

Connecting Power and Interconnecting Wiring to Indoor Unit

Step-by-step guide for wiring and connecting the indoor unit.

Piping and Drain Line Connection to Indoor Unit

Instructions for connecting refrigerant piping and drain lines to the indoor unit.

SYSTEM VACUUM AND CHARGE

Using Vacuum Pump

Procedures for evacuating the system using a vacuum pump.

Deep Vacuum Method

Detailed explanation of the deep vacuum method for system evacuation.

Triple Evacuation Method

Detailed explanation of the triple evacuation method for system evacuation.

Final Tubing Check

Important checks to ensure tubing is secure and not rubbing against any surfaces.

START-UP

Test Operation and System Checks

Procedures for performing test operation and system checks after installation.

Indoor Unit Operation Checks

Specific checks for the indoor unit's functionality after start-up.

Outdoor Unit Operation Checks

Specific checks for the outdoor unit's operation and noise during start-up.

Customer Explanation Topics

Topics to explain to the customer regarding operation and maintenance.

TROUBLESHOOTING

38GM018-024 Diagnostic Codes

Lists error codes and corresponding LED flash patterns for 18-24K models.

38GXM030 Diagnostic Codes

38GXM030 Diagnostic Codes (Continued)

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