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Daikin FDMQ15WVJU9 User Manual

Daikin FDMQ15WVJU9
303 pages
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[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

Table of Contents

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Daikin FDMQ15WVJU9 Specifications

General IconGeneral
ModelFDMQ15WVJU9
CategoryAir Conditioner
Coefficient of Performance (Heating)3.5
RefrigerantR410A
Weight9 kg
Power SourceElectric
Indoor Unit Weight9 kg
Operating Temperature (Heating)-15°C to 24°C

Summary

1. Safety Cautions

1.1 Warnings and Cautions Regarding Safety of Workers

Crucial safety guidelines for personnel performing maintenance and repairs.

1.2 Warnings and Cautions Regarding Safety of Users

Important safety advice for end-users to prevent injury and equipment damage.

Part 2 Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit

Wiring diagrams for various indoor unit types and their associated PCBs.

Part 4 Functions and Control

Part 6 Service Diagnosis

1. General Problem Symptoms and Check Items

Common issues, symptoms, and initial checks for troubleshooting the system.

2. Troubleshooting with LED

Guide to diagnosing problems based on LED indicators on indoor and outdoor units.

3. Service Diagnosis

Procedures for diagnosing issues using remote controller codes and methods.

4. Code Indication on Remote Controller

Lists error codes displayed on remote controllers and their meanings.

5. Troubleshooting for Wall Mounted/Floor Standing Type

Specific troubleshooting steps for wall-mounted and floor-standing units.

6. Troubleshooting for Duct Concealed/Ceiling Cassette Type

Specific troubleshooting steps for duct-concealed and ceiling cassette units.

7. Troubleshooting for Outdoor Unit

Detailed troubleshooting procedures for outdoor unit malfunctions and error codes.

8. Check

Specific checks and tests for components like thermistors, motors, and PCBs.

Part 7 Trial Operation and Field Settings

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