Fujitsu ASYA007GTAH User Manual

SERVICE MANUAL

Fujitsu ASYA007GTAH Specifications

General

Brand	Fujitsu
Model	ASYA007GTAH
Category	Air Conditioner
Language	English

Summary

1. TEST RUN

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS

Step-by-step guide and precautions for executing test runs of the air conditioning system.

1-2 TEST RUN METHOD

Details the procedures and methods for conducting test runs.

1-2-1 Check Items Before Power ON

1-2-2 Check Items After Power ON

1-3 TEST RUN CONTROL

Details the control parameters and conditions during test runs.

2. OUTDOOR UNIT OPERATION CONTROL

2-2 COMPRESSOR OPERATION

Details the operation and control of the compressor.

2-3 FAN CONTROL

Describes the control mechanisms for the unit's fans.

2-5 SPECIAL OPERATION

Describes special operational modes and their procedures.

2-5-1 Oil Recovery Operation

2-5-3 Defrost Operation Control

2-6 PROTECTIVE FUNCTION

Lists and explains the unit's various protective functions.

2-6-1 Protective Function List

A comprehensive list of protective functions with their operating conditions and operations.

3. INDOOR UNIT OPERATION

3-1 FAN CONTROL

Explains how the indoor unit's fan speed and operation are controlled.

3-2 MASTER CONTROL

Centralized control functions for multiple units.

3-2-1 Operation Mode Control

How operation modes (Cool, Dry, Heat) are managed.

3-2-2 Auto Changeover

Automatic switching between cooling and heating modes.

3-2-3 "COOL" Position

3-3 LOUVER CONTROL

Adjustment of air direction louvers for optimal airflow.

3-4 ELECTRONIC EXPANSION VALVE CONTROL

3-5 DRAIN PUMP OPERATION

3-6 FUNCTION

3-7 TIMER CONTROL

3-7-1 Wireless Remote Controller

3-7-2 Group Remote Controller

3-7-3 Wired Remote Controller

3-8 DX-KIT

4. TROUBLE SHOOTING

4-1 NORMAL OPERATION

4-1-1 Indoor Unit Display

4-1-2 OUTDOOR UNIT DISPLAY

4-2 ABNORMAL OPERATION

Troubleshooting procedures for abnormal unit behavior.

4-2-1 Indoor Unit Display

4-2-2 Outdoor Unit Display

4-2-3 Error Code List for Outdoor Unit

A list of error codes for outdoor units and their meanings.

4-2-4 Remote Controller Display

Troubleshooting errors displayed on remote controllers.

4-2-5 Error Code List for Simple and Wired Remote Controller

Error codes specific to simple and wired remote controllers.

4-2-6 Error Code List for Group Remote Controller

Error codes specific to group remote controllers.

4-2-7 Trouble shooting - No Error code -

4-2-8 Error Code List for External Switch Controller

4-2-9 Error Code List for Signal Amplifier

4-2-10 Error Code List for Network Convertor

4-2-11 Error Code List for Wireless LAN Adaptor

4-2-12 TROUBLE SHOOTING WITH ERROR CODE

Detailed troubleshooting for specific error codes.

4-3 TROUBLE SHOOTING WITH ERROR CODE

General troubleshooting for system errors indicated by codes.

4-3-1 Trouble shooting 31 OUTDOOR UNIT Error Method: Auto Address Setting Error

Troubleshooting auto address setting errors in outdoor units.

4-3-2 Trouble Shooring With Error Code (OUTDOOR UNIT)

Troubleshooting outdoor unit errors based on specific error codes.

4-3-3 Trouble Shooting With No Error Code

Troubleshooting procedures when no error code is present.

4-3-4 Trouble Shooting for Option Parts

4-4 SERVICE PARTS INFORMATION

Information on service parts and their identification.

5. APPENDING DATA

5-1 REFRIGERANT CIRCUIT

5-2 WIRING DIAGRAM

Electrical wiring diagrams for various unit types.

5-2-1 Indoor Unit

5-2-2 Outdoor Unit

5-2-3 DX-KIT

5-3 CHARACTERISTICS OF SENSORS

5-3-1 Pressure senser

5-3-2 Thermistor resistance

5-3-3 Saturation temperature and saturation pressure tables

6. DISASSEMBLY PROCESS

2. SERVICE PANEL removal

3. MAIN PCB removal

Procedure for removing the main printed circuit board.

4. COMMUNICATION PCB removal

5. INVERTER PCB, FILTER PCB, DIODE BRIDGE and POWER PCB removal

Steps to remove key electronic components like Inverter, Filter, Diode Bridge, and Power PCBs.

6. FAN DRIVER PCB and INVERTER CT PCB removal

Procedure for removing fan driver and inverter CT PCBs.

7. PRESSURE SENSOR, SOLENOID COIL removal

Steps to remove pressure sensors and solenoid coils.

8. EEV COIL removal

9. THERMISTOR removal

10. FAN MOTOR removal

Procedure for removing the fan motor.

11. TOP PANEL removal

12. REACTOR removal

15. COMPRESSOR removal

Steps and precautions for removing the compressor.

16. Precautions for exchange of refrigerant-cycle-parts