Sharp AH-AP18CE User Manual

AY-AP18CE AY-AP24CE
AH-AP18CE AH-AP24CE
AE-A18CE AE-A24CE
AU-A18CE AU-A24CE
1
INDOOR UNIT
AH-AP18CE AY-AP18CE
AH-AP24CE AY-AP24CE
OUTDOOR UNIT
MODELS
SERVICE MANUAL
S7222AYAP24CE
SHARP CORPORATION
In the interests of user-safety (Required by safety regulations in some
countries) the set should be restored to its original condition and only
parts identical to those specified should be used.
SPLIT SYSTEM
ROOM AIR CONDITIONERS
AU-A18CE AE-A18CE
AU-A24CE AE-A24CE
TABLE OF CONTENTS
Page
SPECIFICATIONS .............................................................................................................................................2
EXTERNAL DIMENSIONS ............................................................................................................................... 4
WIRING DIAGRAMS.........................................................................................................................................5
ELECTRICAL PARTS .......................................................................................................................................9
MICROCOMPUTER CONTROL SYSTEM .....................................................................................................11
FUNCTIONS ...................................................................................................................................................19
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT................................................................................27
REFRIGERATION CYCLE ..............................................................................................................................32
PERFORMANCE CURVES ............................................................................................................................ 34
REFRIGERANT PIPE INSTALLATION WORKS .............................................................................................35
DISASSEMBLING PROCEDURE ................................................................................................................... 37
REPLACEMENT PARTS LIST ........................................................................................................................46

Sharp AH-AP18CE Specifications

General

Brand	Sharp
Model	AH-AP18CE
Category	Air Conditioner
Language	English

Summary

Specifications

External Dimensions

Wiring Diagrams

Electrical Parts

Microcomputer Control System

Functions

Cooling, Dry, and Heat Operation Modes

Details thermostat control characteristics for cooling, dry, and heat operations.

Fan Speed Control

Explains fan speed settings based on operation mode and fan switch.

Hot-Keep and Preheat Air Flow

Explains features to prevent cold air during heating and defrost.

Overheating and Current Control

Covers system protection against overheating and overcurrent.

Defrost and Timer Functions

Covers automatic defrost procedure and ON/OFF timer operations.

Diagnosis Procedure

Troubleshooting Guide of Control Circuit

Refrigeration Cycle

Performance Curves

Refrigerant Pipe Installation Works

Disassembling Procedure (Indoor Unit)

Disassembling Procedure (Outdoor Unit)