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Daikin VRV RXYMQ5AYFK User Manual

Daikin VRV RXYMQ5AYFK
305 pages
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Servi ce
Manual
RXYMQ-A Series
Heat Pump 50/60 Hz
SiME332106E

Table of Contents

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Daikin VRV RXYMQ5AYFK Specifications

General IconGeneral
ModelRXYMQ5AYFK
CategoryHeat Pump
RefrigerantR410A
Power Supply50Hz
Operating Temperature (Cooling)-5 to 46°C
Operating Temperature (Heating)-15 to 24 °C

Summary

Introduction

Safety Cautions

Crucial warnings and cautions for safe operation and maintenance.

Specifications

Refrigerant Circuit (Piping Diagrams)

Outdoor Unit

Illustrates refrigerant flow and component connections for the outdoor unit.

VRV Indoor Unit

Illustrates refrigerant flow and component connections for VRV indoor units.

Functional Parts Layout

Names and Functions

Service Settings Menu, Maintenance Menu

Operation Flowchart

Stop Control

Startup Control

Normal Control

Protection Control

High Pressure Protection Control

Prevents activation of devices due to high pressure increase.

Low Pressure Protection Control

Protects compressors against transient decrease of low pressure.

Discharge Pipe Protection Control

Protects compressor internal temperature against discharge pipe issues.

Inverter Protection Control

Prevents tripping due to inverter abnormalities or overcurrent.

Overload Protection Control

Prevents compressor damage from abnormal heating or operation.

Special Control

Outline of Control (Indoor Unit)

Field Settings for Indoor Unit

Field Settings with Remote Controller

Guides configuring indoor unit settings via remote controller.

Field Settings for Outdoor Unit

Function Setting

Sets specific application requirements for the outdoor unit.

Settings by DIP Switches

Details DIP switch settings for PCB replacement.

Settings by BS Buttons

Explains settings made using BS buttons on the PCB.

Test Operation

Checks before Test Operation

Verifies prerequisites before performing a test operation.

Checkpoints

Lists critical items to check before and during test operation.

Test Operation Procedure

Step-by-step guide for conducting test operations.

Turn Power ON

Procedure for powering on the unit and initiating checks.

Servicing Items to be Confirmed

Troubleshooting

General approach to identifying and resolving issues.

Precautions for Maintenance

Essential safety and handling precautions for maintenance.

Symptom-based Troubleshooting

Error Code via Remote Controller

BRC1E63

Explains error/warning display and corrective actions for BRC1E63.

BRC1H81 Series

Explains error display and actions for BRC1H81 Series.

Error Code via Outdoor Unit PCB

Troubleshooting by Error Code

Error Codes and Descriptions

Lists all error codes and their descriptions.

Error Codes (Sub Codes)

Provides sub-codes for detailed error diagnosis.

Compressor Motor Lock

Troubleshooting for error code E5.

Thermistor Abnormality

Troubleshooting for error codes C4, C5, C9.

Transmission Error

Troubleshooting for error code C1-01.

Power Supply Voltage Abnormality

Troubleshooting for error code A8.

Refrigerant Shortage Warning (Cooling)

Troubleshooting for error code U0 (Cooling).

Wiring Diagrams

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