Carrier 38MURAQ60AB3 User Manual

Specifications subject to change without notice.
Fig. 1 —Sizes 18K, 18K HH, 24K, 24K HH, 30K,
30K HH, 36K
Fig. 2 —Sizes 36K HH, 48K, 48K HH, 60K, 60K HH
NOTES: Read the entire instruction manual before starting the
installation. Images are for illustration purposes only.
Actual models may differ slightly. HH Denotes High Heat
Models.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS........................................................2
MODEL NUMBER AND ACCESSORIES.....................................3
DIMENSIONS..................................................................................4
CLEARANCES ................................................................................8
INSTALLATION REQUIREMENTS .............................................9
INSTALLATION .............................................................................9
Step 1 - Check Equipment ................................................................9
Step 2 - Mount Unit ..........................................................................9
Step 3 - Condensate Drain Installation .............................................10
Step 4 - Operating Ambient..............................................................10
Step 5 - Refrigerant Piping Connections ..........................................10
Step 6 - Electrical Connections - Dip Switch Configuration............13
Step 7 - Evacuate Coil And Tubing System .....................................15
ELECTRICAL DATA......................................................................16
24V CONNECTION DIAGRAMS ..................................................16
START-UP .......................................................................................18
CARE AND MAINTENANCE........................................................18
TROUBLESHOOTING ...................................................................18
OUTDOOR UNIT DIAGNOSTIC GUIDES ...................................19
CROSSOVER SOLUTIONS............................................................20
Installation Instruction
38MURA
Residential Single Zone Heat Pump System
Sizes 18 to 60

Carrier 38MURAQ60AB3 Specifications

General

Brand	Carrier
Model	38MURAQ60AB3
Category	Heat Pump
Language	English

Summary

Safety Considerations

Electrical and Explosion Hazards

Critical warnings for electrical shock, explosion risk, and equipment damage.

Installation Safety Notes

Clearances

Installation Requirements

Location and Environmental Guidelines

Installation Steps

Step 2: Mount Outdoor Unit

Step 5: Refrigerant Piping Connections

Detailed procedure for connecting refrigerant lines, including flaring and torque.

Step 6: Electrical Connections & Dip Switches

Connecting power, control wiring, and configuring dip switches for unit operation.

Step 7: System Evacuation

Procedures for evacuating the system of air and moisture for proper operation.

Wiring and Electrical Data

Power and Communication Wiring

System Operation and Maintenance

Test Operation and System Checks

Verifying system readiness, safety checks, and initial operational tests.

Troubleshooting and Diagnostics Overview

Outdoor Unit Diagnostic Guides

Error Code Reference

Detailed list of outdoor unit error codes and their specific meanings for diagnosis.