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Fujitsu ASUH18LMAS - User Manual

Fujitsu ASUH18LMAS
215 pages
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AIR CONDITIONER
Wall mounted type
SERVICE MANUAL
INDOOR
ASUH18LMAS ASUH24LMAS
OUTDOOR
AOUH18LMAS1
AOUH24LMAS1
SR_AS052EF_03
2021.11.17

Table of Contents

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Fujitsu ASUH18LMAS Specifications

General IconGeneral
BrandFujitsu
ModelASUH18LMAS
CategoryAir Conditioner
LanguageEnglish

Summary

General Information

Specifications

Detailed specifications for indoor and outdoor units, including model names and operating ranges.

Dimensions

Dimensional drawings and measurements for indoor and outdoor units.

Technical Data and Parts List

Precautions

Important safety and handling precautions before servicing the air conditioner.

Indoor Unit Parts List

Lists and diagrams of parts for the ASUH18LMAS and ASUH24LMAS indoor units.

Outdoor Unit Parts List

Lists and diagrams of parts for the AOUH18LMAS1 and AOUH24LMAS1 outdoor units.

Accessories

Lists of included accessories for indoor and outdoor units.

Refrigerant System Diagrams

Schematic diagram of the refrigerant flow within the system.

Wiring Diagrams

Electrical wiring diagrams for indoor and outdoor units.

PC Board Diagrams

Circuit diagrams for the PC boards used in the system.

Troubleshooting

Error Code Information

Details on checking, displaying, and erasing error codes for system faults.

Troubleshooting with Error Codes

Step-by-step troubleshooting procedures for various error codes.

Troubleshooting Without Error Codes

Troubleshooting steps for issues not associated with specific error codes.

Wireless LAN Adapter Troubleshooting

Specific troubleshooting for wireless LAN adapter communication errors.

Service Parts Information

Detailed information and diagrams for individual service parts.

Thermistor Resistance Values

Resistance and voltage data for thermistors at various temperatures.

Control and Functions

Compressor Rotation Control

How compressor rotation speed is managed based on operating conditions.

Auto Changeover Operation

Automatic switching between cooling, heating, and dry modes.

Fan Control

Details on indoor and outdoor fan speed settings and operation.

Louver Control

Adjustment of vertical and horizontal airflow direction.

Timer Operation Control

Functions for On/Off, Program, Sleep, and Weekly timers.

Defrost Operation Control

Conditions and procedures for initiating and releasing defrost operation.

Various Controls

Description of various operational controls like Auto restart and Manual auto.

Various Protections

Protection controls designed to prevent unit damage.

Field Working

Function Settings

Procedures for adjusting product functions via the remote controller.

External Input and Output

Details on connecting external devices for input and output control.

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