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Fujitsu AOU18CL

Fujitsu AOU18CL
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SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
ASU9RLQ
ASU12RLQ
ASU18CL
ASU18RL
AOU9RLQ
AOU12RLQ
AOU18CL
AOU18RL
INVERTER
SERVICE
INSTRUCTION
R410A

Table of Contents

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Questions and Answers:

Fujitsu AOU18CL Specifications

General IconGeneral
BrandFujitsu
ModelAOU18CL
CategoryAir Conditioner
LanguageEnglish

Summary

SERVICE INSTRUCTION

1. SPECIFICATIONS

2. DIMENSIONS

3. REFRIGERANT SYSTEM DIAGRAM

4. CIRCUIT DIAGRAM

5. DESCRIPTION OF EACH CONTROL OPERATION

1. COOLING OPERATION

Details compressor frequency control for cooling based on temperature.

2. HEATING OPERATION

Details compressor frequency control for heating based on temperature.

8. COMPRESSOR CONTROL

10. ELECTRONIC EXPANSION VALVE CONTROL

11. TEST OPERATION CONTROL

19. DEFROST OPERATION CONTROL

20. OFF DEFROST OPERATION CONTROL

21. VARIOUS PROTECTIONS

4. COOLING PRESSURE OVERRISE PROTECTION

Stops compressor if outdoor unit pressure exceeds limits.

6. REFRIGERANT CAUTION -R410 A-

1. R410 A TOOLS

Lists necessary tools and equipment for R410A refrigerant.

2. PRECAUTION FOR INSTALLATION

Covers pipe diameter, material, and flare nut requirements for R410A.

3. PRECAUTION FOR SERVICING

Highlights differences and precautions for servicing R410A.

7. TROUBLE SHOOTING

Does not operate at all (Operation Lamp and Timer Lamp do not light up)

Checks power supply, wiring, and connections for no operation.

SELF-DIAGNOSIS FUNCTION

Explains how to read error codes via lamp indicators.

IPM Protection

Troubleshoots issues related to the Intelligent Power Module.

Trouble Shooting of Refrigerant Cycle

Diagnoses common refrigerant cycle faults.

9. REPLACEMENT PARTS

10. INSTALLATION MANUAL

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