Fujitsu ASYA24GBCH User Manual

SERVICE MANUAL

Fujitsu ASYA24GBCH Specifications

General

Brand	Fujitsu
Model	ASYA24GBCH
Category	Air Conditioner
Language	English

Summary

1. TEST RUN

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS

Details procedures and precautions for test run execution.

1-2 TEST RUN METHOD

Outlines the methods for conducting the test run.

1-2-3 Automatic address setting for signal amplifiers

Procedure for automatic address setting of signal amplifiers.

1-2-4 Automatic address setting procedure for indoor units

Steps for automatic address setting of indoor units.

1-2-5 Indoor unit connection check procedure

Procedure for checking indoor unit connections.

1-2-6 Test Run From Outdoor Main PCB

How to perform test runs using the outdoor main PCB.

1-2-7 Test Run From Remote Controller

Steps for test runs using various remote controllers.

1-3 TEST RUN CONTROL

Controls and parameters for test run operations.

1-4 FIELD SETTING AND MONITOR MODE LIST FOR OUTDOOR UNIT

Lists field settings and monitor modes for outdoor units.

1-5 FIELD SETTING / FUNCTION SETTING FOR INDOOR UNIT

Field and function settings for indoor units.

1-6 FIELD SETTING / FUNCTION SETTING FOR OUTDOOR AIR UNIT

Field and function settings for outdoor air units.

2. OUTDOOR UNIT OPERATION CONTROL

2-1 INPUT / OUTPUT LIST

Lists all input and output signals and their control ranges.

2-2 COMPRESSOR OPERATION

Details compressor operation, including start/stop conditions and capacity control.

2-2-3 Speed Range of Start, Stop, And Operation

Defines the speed range for compressor start, stop, and operation.

2-3 FAN CONTROL

2-3-2 Heating Operation

2-4 EXPANSION VALVE CONTROL

2-5 SPECIAL OPERATION

2-6 PROTECTIVE FUNCTION

3. INDOOR UNIT OPERATION

3-1 FAN CONTROL

3-2 MASTER CONTROL

3-2-2 Auto Changeover

3-4 ELECTRONIC EXPANSION VALVE CONTROL

3-5 DRAIN PUMP OPERATION

3-6 FUNCTION

3-7 TIMER CONTROL

3-8 DX-KIT

4. TROUBLE SHOOTING

4-2 ABNORMAL OPERATION

Details abnormal operations and error indications for indoor units.

4-2-3 Error Code List for Outdoor Unit

Comprehensive list of outdoor unit error codes and their meanings.

4-2-4 Remote Controller Display

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

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

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

Troubleshooting steps for specific error codes.

4-3 TROUBLE SHOOTING

General troubleshooting procedures for various issues.

4-3-1 Trouble Shooting With Error Code (Indoor unit)

Troubleshooting steps for indoor unit errors.

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

Troubleshooting steps for outdoor unit errors.

4-3-3 TROUBLE SHOOTING WITH NO ERROR CODE

Troubleshooting steps when no error code is present.

4-3-4 Trouble Shooting for Optional Parts

4-4 SERVICE PARTS INFORMATION

6. DISASSEMBLY PROCESS

2. SERVICE PANEL removal

3. MAIN PCB removal

4. COMMUNICATION PCB removal

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

6. FAN DRIVER PCB and INVERTER CT PCB removal

7. PRESSURE SENSOR, SOLENOID COIL removal

8. EEV COIL removal

9. THERMISTOR removal

10. FAN MOTOR removal

15. COMPRESSOR removal

16. Precautions for exchange of refrigerant-cycle-parts