Daikin CTXS09GVJU User Manual

SiUS12 - 814
[Applied Models]
 Inverter Multi : Heat Pump
G-Series

Daikin CTXS09GVJU Specifications

General

Model	CTXS09GVJU
Category	Heat Pump
Heating Seasonal Performance Factor (HSPF)	10.0
Refrigerant	R-410A
Weight (Indoor Unit)	8 kg
Power Supply	220-240V, 50Hz
Cooling Capacity	9000 BTU/h
Noise Level (Indoor)	19 dB(A)
Dimensions (Indoor Unit)	200 mm
Outdoor Unit Dimensions (HxWxD)	550 x 780 x 285 mm

Summary

1. Introduction

1.1 Safety Considerations

Read and follow safety considerations before installing and operating the equipment.

1.1.1 Cautions Regarding Safety of Workers

1.1.2 Cautions Regarding Safety of Users

Part 2 Specifications

1. Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

Details the connector wiring diagrams for internal circuit boards.

1.1 Indoor Unit

Provides wiring diagram details for indoor unit circuit boards.

1.2 Outdoor Unit

Details wiring diagrams for outdoor unit circuit boards.

Part 4 Function and Control

1. Main Functions

1.1 Frequency Principle

3. Control Specification

3.2 Frequency Control

3.6 Freeze-up Protection Control

3.10 Defrost Control

3.12 Electronic Expansion Valve Control

3.13 Malfunctions

Lists and describes various malfunctions detected by the system.

3.14 Forced Operation Mode

3.15 Wiring-Error Check

Details the function for automatically detecting and correcting wiring errors.

Part 5 Operation Manual

2.2 Safety Precautions

Details essential safety precautions for users to prevent hazards and ensure proper use.

2.13 Care and Cleaning

2.14 Troubleshooting

Offers guidance for diagnosing and resolving common operational issues.

Part 6 Service Diagnosis

1. Caution for Diagnosis

Provides essential warnings and precautions before performing diagnostic procedures.

1.1 Troubleshooting with the Operation Lamp

2. Problem Symptoms and Measures

Lists common problems and their corresponding diagnostic measures and solutions.

3. Service Check Function

4. Code Indication on the Remote Controller

Details error codes displayed on the remote controller and their descriptions.

4.1 Error Codes and Description of Fault

Lists and describes all error codes displayed on the remote controller.

5. Troubleshooting

Provides detailed troubleshooting steps for various system faults and abnormalities.

5.1 Indoor Units

Troubleshooting steps for issues related to indoor units.

5.2 Outdoor Units

Troubleshooting steps for issues related to outdoor units.

5.3 Indoor Unit PCB Abnormality

Troubleshooting steps for indoor unit PCB abnormalities.

5.4 Freeze-up Protection Control or High Pressure Control

Troubleshooting for freeze-up protection or high pressure control issues.

5.5 Fan Motor or Related Abnormality

Troubleshooting steps for fan motor and related abnormalities.

5.6 Thermistor or Related Abnormality (Indoor Unit)

Troubleshooting steps for indoor unit thermistor abnormalities.

5.7 Signal Transmission Error (between Indoor and Outdoor Units)

Troubleshooting steps for signal transmission errors between units.

5.8 Unspecified Voltage (between Indoor and Outdoor Units)

Troubleshooting steps for unspecified voltage between units.

5.9 Freeze-up Protection Control

Troubleshooting steps for freeze-up protection control issues.

5.10 Outdoor Unit PCB Abnormality

Troubleshooting steps for outdoor unit PCB abnormalities.

5.11 OL Activation (Compressor Overload)

Troubleshooting steps for OL activation or compressor overload.

5.12 Compressor Lock

Troubleshooting steps for compressor lock issues.

5.13 DC Fan Lock

Troubleshooting steps for DC fan lock issues.

5.14 Input Over Current Detection

Troubleshooting steps for input over current detection.

5.15 Four-Way Valve Abnormality

Troubleshooting steps for four-way valve abnormalities.

5.16 Discharge Pipe Temperature Control

Troubleshooting steps for discharge pipe temperature control issues.

5.17 High Pressure Control in Cooling

Troubleshooting steps for high pressure control in cooling mode.

5.18 Compressor Sensor System Abnormality

Troubleshooting steps for compressor sensor system abnormalities.

5.19 Position Sensor Abnormality

Troubleshooting steps for position sensor abnormalities.

5.20 CT or Related Abnormality

Troubleshooting steps for CT or related abnormalities.

5.21 Thermistor or Related Abnormality (Outdoor Unit)

Troubleshooting steps for outdoor unit thermistor abnormalities.

5.22 Electrical Box Temperature Rise

Troubleshooting steps for electrical box temperature rise.

5.23 Radiation Fin Temperature Rise

Troubleshooting steps for radiation fin temperature rise.

5.24 Output Over Current Detection

5.25 Insufficient Gas

5.26 Low-voltage Detection or Over-voltage Detection

5.27 Signal Transmission Error (on Outdoor Unit PCB)

5.28 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)

6. Check

6.1 How to Check

Part 7 Removal Procedure

1. Outdoor Unit – 2MXS18GVJU

1.1 Removal of Outer Panels

1.2 Removal of Electrical BOX

1.3 Removal of PCB

1.4 Removal of Fan Motor

1.6 Removal of Four-Way Valve Coil, Solenoid Valve Coil, Electronic Expansion Valve Coil and Thermistor

1.7 Removal of Four-Way Valve, Solenoid Valve and Shunt

1.8 Removal of Compressor

2. Outdoor Unit – 4MXS32GVJU

2.1 Removal of Outer Panels

2.2 Removal of the Electrical Box

2.3 Removal of PCB

2.4 Removal of Fan Motor

2.5 Removal of Coils / Thermistors

2.7 Removal of Compressor

Part 9 Appendix

1. Piping Diagrams

1.1 Indoor Units

1.2 Outdoor Units

2. Wiring Diagrams

2.1 Indoor Units

2.2 Outdoor Units