Carrier 38MURA User Manual

Specifications subject to change without notice.
TABLE OF CONTENTS
PAGE
A NOTE ABOUT SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AUTO START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ENERGY SAVING RECOMMENDATIONS . . . . . . . . . . . . . . . . . 4
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Scan to access French documentation:
A220698
Fig. 1 — Air Handler
NOTE TO EQUIPMENT OWNER:
Please read this Owner’s Information Manual carefully before installing and using this appliance and keep this manual for future
reference.
For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along
with the installation data and dealer contact information, will be helpful should your system require maintenance or service.
UNIT INFORMATION
Model # _______________________________
Serial # ________________________________
INSTALLATION INFORMATION
Date Installed ___________________________
DEALERSHIP CONTACT INFORMATION
Company Name: ______________________
Address:_____________________________
Phone Number:________________________
Technician Name:______________________
Owner’s Manual
40MUAA
Sizes 18K to 60K

Carrier 38MURA Specifications

General

Model Number	38MURA
Category	Heat Pump
Refrigerant	R-410A
Voltage	208/230V
HSPF	10
Cooling Capacity (BTU/h)	18000
Stages	Variable

Summary

Safety Information

Safety Hazard Levels

Explains hazard levels (Danger, Warning, Caution) and the meaning of safety symbols.

Property Damage and Injury Warning

Details severe hazards from improper installation, alteration, or service.

General Operation and Modes

Operating Modes Overview

Lists and briefly describes the four operating modes: FAN ONLY, AUTO, HEATING, COOLING.

FAN ONLY Mode Description

Explains circulation and filtering without temperature change.

AUTO Mode Description

Describes automatic cooling/heating based on set point and multi-zone considerations.

HEATING Mode Description

Details the heating function and air filtering.

COOLING Mode Description

Explains cooling, drying, and filtering of room air.

Accessories and Features

System Accessories List

Lists the various accessories shipped with the system, including manuals, remote, and adapters.

Remote Control and Interface Features

Specifies the use of the wireless remote and the built-in 24V interface.

Unit Setup and Maintenance

Auto Start Functionality

Explains how the unit resumes operation after a power failure.

Energy Saving Tips

Provides tips for efficient system operation, like thermostat settings and filter cleaning.

Cleaning the Indoor Unit

Details safe procedures and precautions for cleaning the indoor unit's components.

Maintenance Safety Precautions

Covers safety warnings for maintenance, fuse replacement, and wiring connections.

Filter Maintenance and Long-Term Storage

Cleaning the Air Filter

Step-by-step guide on removing, cleaning, and replacing the air filter for optimal efficiency.

Pre-Season Inspection

Outlines checks before periods of frequent use, like inspecting wires and cleaning filters.

Long Periods of Non-Use Preparation

Instructions for preparing the unit for extended periods of inactivity, including cleaning and drying.

Troubleshooting Common Issues

Troubleshooting Safety Precautions

Critical safety warnings to follow before attempting any troubleshooting steps.

Common Issues and Possible Causes

Lists common operational issues like the unit not turning on or emitting mist, with their potential causes.