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Daikin RXS71FAV1B User Manual

Daikin RXS71FAV1B
141 pages
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Service
Manual
[Applied Models]
z Inverter Pair : Cooling Only
z Inverter Pair : Heat Pump
Inverter Pair
Wall Mounted Type G-Series
SiBE041011_A

Table of Contents

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Daikin RXS71FAV1B Specifications

General IconGeneral
TypeSplit System
Cooling Capacity7.1 kW
Heating Capacity8.0 kW
Energy Efficiency Ratio (EER)3.21
Power Supply220-240V, 50Hz
Weight (Indoor Unit)13 kg
Coefficient of Performance (COP)3.61
Outdoor Unit Noise Level49 dB(A)
Indoor Unit Weight13 kg
RefrigerantR32
Indoor Unit Dimensions (HxWxD)295 x 990 x 263 mm

Summary

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Indoor Unit PCB and Connectors

Wiring diagrams and connector details for the indoor unit PCB.

2.1 RK(X)S60F3V1B, 71 Class Outdoor Unit PCB

Wiring diagram for the RK(X)S60F3V1B, 71 Class outdoor unit PCB.

2.2 RXS60F4V1B Outdoor Unit PCB

Wiring diagram for the RXS60F4V1B outdoor unit PCB.

Part 4 Function and Control

3.2 Frequency Control

Detailed logic for determining compressor frequency.

3.4 Discharge Pipe Temperature Control

How discharge pipe temperature limits compressor operation.

3.5 Input Current Control

Control logic based on input current to protect components.

3.6 Freeze-up Protection Control

How the unit prevents indoor coil freezing.

3.7 Heating Peak-cut Control

Control to limit high pressure during heating.

3.9 Liquid Compression Protection Function

How the unit prevents liquid compression.

3.10 Defrost Control

Logic and conditions for initiating and canceling defrost mode.

3.11 Electronic Expansion Valve Control

Control strategy for the electronic expansion valve.

3.12 Malfunctions

Overview of detected malfunctions and error codes.

Part 6 Service Diagnosis

1. Troubleshooting with LED Indicators

How to interpret LED blinking for error detection.

2. Problem Symptoms and Measures

Common issues and their corresponding troubleshooting steps.

3. Service Check Function

Procedures for using the service check function via the remote controller.

4.1 Error Codes and Description

List of error codes and their meanings.

4.2 Indoor Unit PCB Abnormality

Troubleshooting steps for indoor unit PCB issues.

4.3 Freeze-up Protection or Heating Peak-cut Control Issues

Troubleshooting steps for protection control errors.

4.4 Fan Motor or Related Abnormality

Troubleshooting steps for fan motor issues.

4.5 Thermistor or Related Abnormality (Indoor Unit)

Troubleshooting steps for indoor thermistor errors.

4.6 Refrigerant Shortage

Troubleshooting steps for refrigerant shortage detection.

4.7 Low-voltage or Over-voltage Detection

Troubleshooting steps for voltage detection errors.

4.8 Signal Transmission Error (Indoor to Outdoor)

Troubleshooting steps for communication errors.

4.9 Signal Transmission Error on Outdoor Unit PCB

Troubleshooting for outdoor PCB communication errors.

4.11 Outdoor Unit PCB Abnormality

Troubleshooting steps for outdoor unit PCB issues.

4.12 OL Activation (Compressor Overload)

Troubleshooting steps for compressor overload.

4.13 Compressor Lock

Troubleshooting steps for compressor lock detection.

4.14 DC Fan Lock

Troubleshooting steps for DC fan motor lock.

Part 7 Trial Operation and Field Settings

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