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Fujitsu AUXB07GALH User Manual

Fujitsu AUXB07GALH
255 pages
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SERVICE MANUAL

Table of Contents

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Fujitsu AUXB07GALH Specifications

General IconGeneral
BrandFujitsu
ModelAUXB07GALH
CategoryAir Conditioner
LanguageEnglish

Summary

1. TEST RUN

1-1 EXECUTION PROCEDURE AND PRECAUTIONS

Procedures and precautions for test run execution.

1-2 TEST RUN METHOD

Outlines methods for conducting test runs.

1-3 TEST RUN CONTROL

Details control parameters and procedures for test runs.

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

Details field settings and functions for indoor units.

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

Details field settings and functions for outdoor air units.

2. OUTDOOR UNIT OPERATION CONTROL

2-1 INPUT / OUTPUT LIST

Lists inputs and outputs for the outdoor unit.

2-2 COMPRESSOR OPERATION

Details compressor operation modes, capacity control, and speed ranges.

2-3 FAN CONTROL

Explains fan control for cooling and heating operations.

2-4 EXPANSION VALVE CONTROL

Details control of expansion valves for cooling and heating.

2-5 SPECIAL OPERATION

Covers oil recovery, pre-heat, and defrost operations.

2-6 PROTECTIVE FUNCTION

Lists and describes various protective functions and their operating conditions.

3. INDOOR UNIT OPERATION

3-1 FAN CONTROL

Details fan speed settings and automatic position control for cooling and heat.

3-2 MASTER CONTROL

Covers operation mode control, priority modes, and auto changeover.

3-3 LOUVER CONTROL

Details adjustment of air circulation direction and swing operations.

3-4 ELECTRONIC EXPANSION VALVE CONTROL

Details initialization, operation, and special control of electronic expansion valves.

3-5 DRAIN PUMP OPERATION

Explains drain pump operation during cooling, heating, and fault conditions.

3-6 FUNCTION

Covers auto restart, icing protection, and oil recovery functions.

3-7 TIMER CONTROL

Explains timer functions for wireless, group, and wired remote controllers.

3-8 DX-KIT

Covers DX-KIT system configuration and fundamental functions.

4. TROUBLE SHOOTING

4-1 NORMAL OPERATION

Describes normal operation indicators and display patterns for indoor and outdoor units.

4-2 ABNORMAL OPERATION

Provides troubleshooting for abnormal operation via error codes and displays.

4-3 TROUBLE SHOOTING

Provides systematic troubleshooting steps for various error conditions.

5. APPENDING DATA

5-1 REFRIGERANT CIRCUIT

Shows the refrigerant circuit diagram for different models.

SYMBOL DESCRIPTION

Explains symbols used in refrigerant and wiring diagrams for outdoor and indoor units.

5-2 WIRING DIAGRAM

Provides wiring diagrams for various indoor unit types.

5-3 CHARACTERISTICS OF SENSORS

Provides characteristic data for pressure sensors and thermistors.

6. DISASSEMBLY PROCESS

1. Appearance

Shows visual appearance of the outdoor unit.

2. SERVICE PANEL removal

Steps for removing the service panel.

3. MAIN PCB removal

Instructions for removing the main PCB.

4. COMMUNICATION PCB removal

Steps for removing the communication PCB.

5. Major PCB Removal

Procedures for removing power, inverter, filter, and diode bridge PCBs.

6. FAN DRIVER PCB and INVERTER CT PCB removal

Procedures for removing fan driver and inverter CT PCBs.

7. PRESSURE SENSOR, SOLENOID COIL removal

Steps for removing pressure sensors and solenoid coils.

8. EEV COIL removal

Steps for removing the EEV coil.

9. THERMISTOR removal

Steps for removing thermistors.

10. FAN MOTOR removal

Detailed steps for removing the fan motor.

11. TOP PANEL removal

Steps for removing the top panel.

12. REACTOR removal

Steps for removing the reactor.

13. PIPE COVER FRONT removal

Steps for removing the pipe cover front.

14. RIGHT PANEL removal

Steps for removing the right panel.

15. COMPRESSOR removal

Detailed procedure and precautions for compressor removal.

16. Precautions for exchange of refrigerant-cycle-parts

Safety precautions for exchanging refrigerant cycle parts.

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