Sharp AE-X127E - User Manual

AH-X127E
AU-X127E
AY-X127E
AE-X127E
1
SHARP CORPORATION
S4709AYX127E/
SPLIT TYPE
ROOM AIR CONDITIONERS
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.
SERVICE MANUAL
Page
SPECIFICATIONS ................................................................................................................................................. 2
EXTERNAL DIMENSIONS..................................................................................................................................... 4
WIRING DIAGRAMS............................................................................................................................................. 5
ELECTRICAL PARTS ............................................................................................................................................ 8
BLOCK DIAGRAM ..................................................................................................................................................9
MICROCOMPUTER CONTROL SYSTEM.......................................................................................................... 11
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ................................................................... 26
BREAKDOWN DIAGNOSIS PROCEDURE ........................................................................................................ 29
REFRIGERATION CYCLE ................................................................................................................................. 31
PERFORMANCE CURVES ................................................................................................................................ 34
DISASSEMBLING PROCEDURE ....................................................................................................................... 35
OPTION ............................................................................................................................................................... 45
REPLACEMENT PARTS LIST ............................................................................................................................. 47
TABLE OF CONTENTS
MODELS
INDOOR UNIT
AH-X127E
AY-X127E
AU-X127E
AE-X127E
OUTDOOR UNIT

Sharp AE-X127E Specifications

General

Brand	Sharp
Model	AE-X127E
Category	Air Conditioner
Language	English

Summary

SPECIFICATIONS

General Specifications

Details on model, cooling capacity, and moisture removal.

Electrical Data

Electrical parameters like voltage, current, power factor, and compressor details.

WIRING DIAGRAMS

Wiring Diagrams Overview

Diagrams illustrating electrical connections for indoor and outdoor units.

ELECTRICAL PARTS

Component List

Lists electrical components used in the air conditioner models.

MICROCOMPUTER CONTROL SYSTEM

Control Circuit Diagrams

Electronic control circuit diagrams for the microcomputer system.

INDOOR UNIT FUNCTIONS - TEMPERATURE ADJUSTMENT

Proportional and Integral Control

Details on P control and I control for temperature adjustment.

INDOOR UNIT FUNCTIONS - FAN CONTROL

Overheating and Freezing Prevention

Controls for indoor heat exchanger overheating and freezing prevention.

OUTDOOR UNIT FUNCTIONS - DEFROST OPERATION

Defrosting Cycle Overview

OUTDOOR UNIT FUNCTIONS - FREQUENCY CONTROL

AC Current Peak Control

Heat Exchanger Overheating Control

DISASSEMBLING PROCEDURE (INDOOR UNIT)

Disassembly Steps

SERVICING PROCEDURE (OUTDOOR UNIT)

Servicing Steps