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Daikin RXL24WMVJU9 User Manual

Daikin RXL24WMVJU9
255 pages
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[Applied Models]
Inverter Pair : Heat Pump
Service
Manual
SiUS092231E
Inverter Pair RXL-W Series

Table of Contents

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Daikin RXL24WMVJU9 Specifications

General IconGeneral
Model NumberRXL24WMVJU9
CategoryHeat Pump
Voltage (V)208/230 V
Operating Temperature (Heating)75° F
Outdoor Unit Noise Level56 dB
Cooling Capacity24000 BTU/h

Summary

Introduction

1. Safety Cautions

Essential safety precautions for conducting repair work and operating the equipment.

1. Safety Cautions

1.1 Warnings and Cautions Regarding Safety of Workers

Warnings and cautions specifically for personnel involved in maintenance and repair.

1.2 Warnings and Cautions Regarding Safety of Users

Warnings and cautions for end-users to ensure safe operation and prevent hazards.

Part 1 General Information

Part 2 Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

2. Wired Remote Controller

3. Wireless Remote Controller Receiver for FDMQ Series

4. Outdoor Unit

Part 4 Functions and Control

5. Control Specification

Detailed specifications of various control mechanisms and their parameters.

2. Functions for FTX, FVXS Series

3. Functions for FDMQ Series

4. Thermistor Functions

5. Control Specification

5.6 High Pressure Protection Control

Controls system to prevent abnormal high pressures and safety device activation.

5.7 Freeze-up Protection Control

Prevents indoor heat exchanger freezing by adjusting frequency limits.

5.8 Heating Peak-cut Control

Limits frequency to prevent abnormal high pressure during heating.

5.11 Defrost Control

Details the defrosting process using the cooling cycle (reverse cycle).

5.12 Electronic Expansion Valve Control

Covers control aspects of the electronic expansion valve for various operations.

Part 5 Remote Controller

Part 6 Service Diagnosis

2. Troubleshooting with LED

Guides troubleshooting using LED indicators on indoor and outdoor units.

3. Service Diagnosis

Procedures for diagnosing issues using remote controllers (ARC480, ARC466 series).

4. Error Codes and Description

A table listing error codes, their descriptions, and reference pages.

5. Troubleshooting for FTX, FVXS Series

Troubleshooting steps for specific error codes related to FTX and FVXS units.

6. Troubleshooting for FDMQ Series

Troubleshooting steps for specific error codes related to FDMQ units.

7. Troubleshooting for Outdoor Unit

Troubleshooting steps for various errors occurring in the outdoor unit.

1. General Problem Symptoms and Check Items

2. Troubleshooting with LED

2.1 Indoor Unit

Troubleshooting indoor unit errors based on the operation lamp status.

2.2 Outdoor Unit

Troubleshooting outdoor unit errors based on the LED A status.

3. Service Diagnosis

3.1 ARC480 Series

Method 1 for diagnosing issues using the ARC480 series remote controller.

3.2 ARC466 Series

Method 1 for diagnosing issues using the ARC466 series remote controller.

4. Error Codes and Description

5. Troubleshooting for FTX, FVXS Series

5.1 Indoor Unit PCB Abnormality

Troubleshooting steps for error code A1 related to indoor unit PCB.

5.2 Freeze-up Protection Control/Heating Peak-cut Control

Troubleshooting for error code A5 related to freeze-up or peak-cut control.

5.3 Indoor Fan Motor (DC Motor) or Related Abnormality

Troubleshooting steps for error code A6 concerning the indoor fan motor.

5.4 Thermistor or Related Abnormality

Troubleshooting steps for error codes C4, C9 related to thermistors.

5.5 Low-voltage Detection or Over-voltage Detection

Troubleshooting for error code U2 related to voltage abnormalities.

5.6 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)

Troubleshooting for error code U4 concerning signal transmission.

6. Troubleshooting for FDMQ Series

6.1 Indoor Unit PCB Abnormality

Troubleshooting steps for error code A1 related to FDMQ indoor unit PCB.

6.2 Drain Level Control System Abnormality

Troubleshooting steps for error code A3 related to the drain system.

7. Troubleshooting for Outdoor Unit

7.1 Outdoor Unit PCB Abnormality

Troubleshooting steps for error code E1 related to outdoor unit PCB.

7.2 Actuation of High Pressure Switch

Troubleshooting for error code E3 when the high pressure switch actuates.

7.3 OL Activation (Compressor Overload) or HPS Activation (High Pressure Switch)

Troubleshooting for error code E5 due to compressor overload or high pressure switch.

7.4 OL Activation (Compressor Overload)

Troubleshooting for error code E5 related to compressor overload.

7.5 Compressor Lock

Troubleshooting for error code E6 detected by current waveform analysis.

7.6 DC Fan Lock

Troubleshooting for error code E7 related to DC fan motor lock.

7.7 Input Overcurrent Detection

Troubleshooting for error code E8 related to input overcurrent detection.

7.8 Four Way Valve Abnormality

Troubleshooting for error code EA related to four way valve malfunction.

7.9 Discharge Pipe Temperature Control

Troubleshooting for error code F3 related to discharge pipe temperature.

7.10 High Pressure Control in Cooling

Troubleshooting for error code F6 related to high pressure in cooling.

7.11 System Shutdown due to Temperature Abnormality in the Compressor

Troubleshooting for error code F8 due to temperature abnormalities in the compressor.

7.12 Compressor Sensor System Abnormality

Troubleshooting for error code H0 related to compressor sensor system.

7.13 Position Sensor Abnormality

Troubleshooting for error code H6 related to compressor position sensor.

7.14 Thermistor or Related Abnormality (Outdoor Unit)

Troubleshooting for error codes H9, J3, J6, P4 related to outdoor thermistors.

7.15 Electrical Box Temperature Rise

Troubleshooting for error code L3 related to electrical box temperature rise.

7.16 Radiation Fin Temperature Rise

Troubleshooting for error code L4 related to radiation fin temperature rise.

7.17 Output Overcurrent Detection

Troubleshooting for error code L5 related to output overcurrent detection.

7.18 Signal Transmission Error on Outdoor Unit PCB

Troubleshooting for error code U7 concerning signal transmission on outdoor PCB.

8. Check

Part 7 Trial Operation and Field Settings

1. Pump Down Operation

2. Forced Cooling Operation

3. Trial Operation

4. Field Settings for FTX, FVXS Series

5. Field Settings for FDMQ Series

6. Field Settings for Outdoor Unit

7. Silicone Grease on Power Transistor/Diode Bridge

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