Daikin 3MXS24WMVJU9 User Manual

[Applied Models]

Inverter Pair : Heat Pump
Multi-Split Type Air Conditioners
2/3/4/5MXS-W, 2/3/4MXL-W, 2/3/4MXLH-W Series
Service
Manual
SiUS122226E

Daikin 3MXS24WMVJU9 Specifications

General

Category	Air Conditioner
Cooling Capacity (BTU)	24000
Heating Capacity (BTU)	27000
Refrigerant	R32
Indoor Unit Type	Wall Mounted
Number of Zones	1

Summary

Introduction

1. Safety Cautions

Essential warnings and cautions for personnel safety during repair and maintenance.

Part 2 Specifications

1. Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Wiring diagrams for various indoor unit models and their PCBs.

6. Outdoor Unit

Wiring diagrams for outdoor units across various series.

Part 4 Functions and Control

2. Functions for Wall Mounted / Floor Standing Type

3. Functions for Duct Concealed / Ceiling Cassette Type

4. Control Specification

Covers detailed control specifications like thermistor functions and mode hierarchy.

Part 6 Service Diagnosis

1. General Problem Symptoms and Check Items

Lists common symptoms and initial troubleshooting steps for various issues.

2. Troubleshooting with LED

Guide to diagnosing issues using LED indicators on indoor and outdoor units.

3. Service Diagnosis

Methods for diagnosing errors using remote controllers like ARC452 and ARC466.

4. Code Indication on Remote Controller

Lists error codes displayed on remote controllers for different unit types.

5. Troubleshooting for Wall Mounted/Floor Standing Type

Specific troubleshooting steps for wall-mounted/floor-standing indoor units.

6. Troubleshooting for Duct Concealed/Ceiling Cassette Type

Specific troubleshooting steps for duct-concealed/ceiling cassette indoor units.

7. Troubleshooting for Outdoor Unit

Troubleshooting steps for various outdoor unit errors and malfunctions.

Part 7 Trial Operation and Field Settings

2. Forced Cooling Operation

3. Wiring Error Check Function

4. Trial Operation

5. Field Settings