Carrier 38MURAQ60AA3 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 38MURAQ60AA3 Specifications

General

Type	Heat Pump
Model Number	38MURAQ60AA3
Brand	Carrier
Cooling Capacity (BTU/h)	60, 000
Heating Capacity (BTU/h)	60, 000
Refrigerant	R-410A
Phase	1
Voltage	208/230

Summary

Safety Considerations

Electrical Shock Hazard

Specific electrical hazard warning during installation or servicing.

Explosion Hazard

Warning against using oxygen for leak testing or operating compressors.

Unit Dimensions and Specifications

Clearances

Installation Requirements

Installation Steps

Step 1 - Check Equipment

Unpacking and inspecting the unit against job specifications.

Step 2 - Mount Unit

Selecting location and mounting the outdoor unit, considering wind.

Condensate Drain Installation

Refrigerant Piping Connections

Field Piping Warning

Warning that field piping must be done by licensed technician per regulations.

Refrigerant Piping Connections (Continued)

Brazing Adapter and Pressure Testing

Pressure Test Piping

Procedure for pressure testing the refrigerant piping system.

Dry Nitrogen Caution

Caution on using only Dry Nitrogen for pressure testing refrigerant systems.

Electrical Connections and Dip Switch Configuration

Wiring Instructions

Power Wiring

Instructions for connecting power wiring to the outdoor unit terminals.

Communication Wiring

Evacuate Coil and Tubing System

Unit Damage Hazard Caution

Thermostat Wiring Configurations

Start-Up Procedures

Test Operation

Care and Maintenance

Troubleshooting

Outdoor Unit Diagnostic Guides