Sharp AH-X079E - User Manual

1
AH-X079E/X099E
AY-X079E/X099E
S2912AYX099E/
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 ........................................................................................................................................ 7
BLOCK DIAGRAM ............................................................................................................................................. 8
FUNCTIONS .................................................................................................................................................... 14
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 21
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 28
REFRIGERATION CYCLE ............................................................................................................................. 25
PERFORMANCE CURVES ............................................................................................................................ 28
DISASSEMBLING PROCEDURE ................................................................................................................... 30
OPTION ........................................................................................................................................................... 39
REPLACEMENT PARTS LIST ......................................................................................................................... 40
TABLE OF CONTENTS
AH-X079E/X099E
AY-X079E/X099E
AU-X079E/X099E
AE-X079E/X099E
MODELS
OUTDOOR UNIT
INDOOR UNIT
SHARP CORPORATION

Sharp AH-X079E Specifications

General

Brand	Sharp
Model	AH-X079E
Category	Air Conditioner
Language	English

Summary

Specifications

External Dimensions

Wiring Diagrams

Electrical Parts List

Indoor Unit Block Diagrams

Outdoor Unit Block Diagrams

Microcomputer Control System

Indoor Unit Functions

Temperature Adjustment

Details on normal, initial, and general temperature adjustment for the indoor unit.

Indoor Fan Control

Control of indoor fan for cold air prevention, freezing prevention, and overheating prevention.

Operation Modes and Timers

Covers hot keep, automatic operation, timers, swing louvre, restart, and preheat functions.

Operation and Restart Controls

Details on power on start, compressor relay, and auto restart functions.

Outdoor Unit Operations

Defrost Operation

Procedure and conditions for defrosting during heating mode.

Frequency Control

Manages operating frequency for protections like overheating and freezing.

Protection and Signal Controls

Details on overcurrent, compressor, power transistor, power factor protection, and serial signals.

Protective Procedures

Breakdown Diagnosis Procedure

Refrigeration Cycle

Performance Curves

Indoor Unit Disassembling Procedure

Outdoor Unit Servicing Procedure

Optional Parts and Replacement

Air Purifying Filter Replacement

Procedure and guidelines for replacing the air purifying filter.

Replacement Parts List