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Fujitsu AOUH12LMBH1 User Manual

Fujitsu AOUH12LMBH1
151 pages
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AIR CONDITIONER
Wall mounted type
SERVICE MANUAL
For Cold Climate Region
INDOOR
ASUH09LMAS
ASUH12LMAS
OUTDOOR
AOUH09LMAH1
AOUH12LMBH1
SR_AS082EF_01
2022.12.01

Table of Contents

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Fujitsu AOUH12LMBH1 Specifications

General IconGeneral
Cooling Capacity (kW)3.52
Heating Capacity (kW)3.81
RefrigerantR410A
Cooling Capacity (BTU/h)12000
Heating Capacity (BTU/h)13000
Voltage (V)208/230
Power SupplySingle Phase

Summary

GENERAL INFORMATION

1. Specifications

Detailed technical specifications for indoor and outdoor units, covering performance and dimensions.

2. Dimensions

Provides physical dimensions and installation space requirements for indoor and outdoor units.

TECHNICAL DATA AND PARTS LIST

1. Precautions

Essential safety and handling guidelines before servicing equipment.

2. Indoor unit parts list

Comprehensive list and diagrams of indoor unit components for replacement.

3. Outdoor unit parts list

Comprehensive list and diagrams of outdoor unit components for replacement.

4. Accessories

Lists included accessories such as manuals and mounting hardware.

5. Optional parts

Details optional parts like remote controllers and communication kits for enhanced functionality.

6. Refrigerant system diagrams

Visual representation of the refrigerant circuit and key components.

7. Wiring diagrams

Electrical schematics for connecting indoor and outdoor units and controls.

8. PC board diagrams

Layout and connection diagrams for printed circuit boards used in the system.

TROUBLESHOOTING

1. Error code

Information on error codes, their display, and memory management procedures.

2. Troubleshooting with error code

Step-by-step guides for diagnosing and resolving specific error codes.

3. Troubleshooting without error code

Guidance for diagnosing and resolving common operational faults not indicated by error codes.

4. Service parts information

Details on key components like compressors and motors for service.

5. Thermistor resistance values

Tables of thermistor resistance values at different temperatures for diagnosis.

CONTROL AND FUNCTIONS

1. Rotation number control of compressor

Explains how compressor speed is managed based on operating conditions.

2. Auto changeover operation

Describes the automatic switching between heating, cooling, and dry modes.

3. Fan control

Details fan speed settings and operational logic for indoor and outdoor fans.

4. Louver control

Information on adjusting airflow direction and swing operations.

5. Timer operation control

Explains the various timer functions available for scheduling operations.

6. Defrost operation control

Covers the conditions and procedures for defrost operation.

7. Various control

Explains diverse control features like auto restart, forced cooling, and economy modes.

8. Various protections

Details system protections against over-temperature, over-pressure, and other faults.

FILED WORKING

1. Function settings

Guides on configuring various operational functions using the remote controller.

2. External input and output

Explains how to interface the unit with external control devices.

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