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Fujitsu AUXB24GALH User Manual

Fujitsu AUXB24GALH
255 pages
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SERVICE MANUAL

Table of Contents

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Fujitsu AUXB24GALH Specifications

General IconGeneral
BrandFujitsu
ModelAUXB24GALH
CategoryAir Conditioner
LanguageEnglish

Summary

TEST RUN

Pre-Power ON and Post-Power ON Checks

Lists critical items to check before and after applying power, covering installation, safety, and system status verification.

1-3 TEST RUN CONTROL

Describes test run control parameters like operating modes, fan speed, temperature indication, and air direction settings.

OUTDOOR UNIT OPERATION CONTROL

2-2 COMPRESSOR OPERATION

Explains compressor operation, stop conditions, capacity control, and speed ranges for start, stop, and continuous operation.

2-3 FAN CONTROL

Details fan control for cooling, heating, and low noise modes, including fan steps, switching conditions, and sound reduction.

2-4 EXPANSION VALVE CONTROL

Describes expansion valve control for EEV1 and EEV2, covering initialization, operation, and special control modes.

2-5 SPECIAL OPERATION

Explains special operations like oil recovery, pre-heat, and defrost control for system maintenance and protection.

2-6 PROTECTIVE FUNCTION

Lists protective functions, including temperature, high/low pressure, and abnormal protections for safe system behavior.

INDOOR UNIT OPERATION

3-1 FAN CONTROL

Covers fan control for indoor units, including speed settings, AUTO position logic, and operation during DRY mode.

3-2 MASTER CONTROL

Explains master control functions: operation mode, priority modes, auto changeover, and COOL/HEAT positions.

3-3 LOUVER CONTROL

Provides instructions for adjusting air circulation direction (vertical/horizontal louvers) and swing operations using the remote control.

3-4 ELECTRONIC EXPANSION VALVE CONTROL

Details electronic expansion valve control for indoor units, including initialization, operation, and special controls.

3-5 DRAIN PUMP OPERATION

Explains drain pump operation, covering starting, stopping, and float switch functions for indoor units.

TROUBLE SHOOTING

4-2 ABNORMAL OPERATION

Details abnormal operation indicators for indoor and outdoor units, listing error contents, flashing patterns, and troubleshooting references.

DISASSEMBLY PROCESS

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