Table of Contents
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[1]
SPECIFICATION ...........................................1-1
[2]
EXTERNAL DIMENTIONS ............................1-3
[3]
WIRING DIAGRAMS .....................................1-5
[4]
ELECTRICAL PARTS....................................1-5
[1]
BLOCK DIAGRAMS ......................................2-1
[2]
[3]
FUNCTION ....................................................2-8
CHAPTER 3. FUNCTION AND OPERATION OF PRO-
TECTIVE PROCEDURES
[1]
TROUBLESHOOTING GUIDE ......................3-1
[2]
CHART ..........................................................3-2
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
SERVICE MANUAL
SPLIT TYPE
ROOM AIR CONDITIONER
MODELS
CONTENTS
[1]
REFRIGERATION CYCLE..................... . ....... 4-1
[2]
PERFORMANCE CURVES ................... . ....... 4-2
[3]
WORKS ................................................. . ....... 4-3
[1]
INDOOR UNIT ....................................... . ....... 5-1
[2]
OUTDOOR UNIT ................................... . ....... 5-5
........2-3
Parts Guide
S3011AYXPC8LRT
INDOOR UNIT
AY-XPC18LR
AY-XP24LR
OUTDOOR UNIT
AE-X18LR
AE-X24LR
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
AYXPC18LR
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Summarization of Contents
Chapter 1: Product Specifications
Specifications
Detailed technical specifications for AY-XPC18LR and AE-X18LR models.
External Dimensions
Dimensional drawings and measurements for indoor and outdoor units.
Wiring Diagrams
Electrical wiring diagrams for indoor and outdoor units.
Electrical Parts
List of electrical components and their specifications.
Chapter 2: Circuit and Operation Explanation
Indoor Unit Block Diagrams
Functional block diagrams for indoor unit circuits and operations.
Outdoor Unit Block Diagrams
Functional block diagrams for outdoor unit circuits and operations.
Indoor Microcomputer Control System
Detailed circuit diagram for the indoor unit's microcomputer control system.
Indoor Control PWB Layout
Printed wiring board layout for the indoor unit's control system.
Outdoor Unit Control Circuit Diagram
Electronic control circuit diagram for the outdoor unit.
Outdoor Unit Control Board Layouts
Printed wiring board layouts for outdoor unit control components.
Unit Functions
Explanation of operational functions like restart, freeze prevention, and overheat control.
Chapter 3: Protective Procedures and Troubleshooting
Troubleshooting Guide
Guide to self-diagnosis function and display modes for troubleshooting.
Malfunction Chart
Chart detailing malfunction indications, descriptions, inspection, and remedies.
Chapter 4: Refrigeration Cycle and Performance
Refrigerant Flow and Conditions
Refrigerant flow diagram and standard operating conditions for models.
AY-XPC18LR Performance Curves
Cooling and heating performance curves for the AY-XPC18LR model.
AY-XP24LR Performance Curves
Cooling and heating performance curves for the AY-XP24LR model.
Refrigerant Pipe Installation
Guidelines for refrigerant pipe length, level difference, and charging.
Chapter 5: Disassembly Procedures
Indoor Unit Disassembly
Step-by-step procedure for disassembling the indoor unit.
Indoor Unit Disassembly (Continued)
Continued disassembly steps for the indoor unit.
Indoor Unit Evaporator Disassembly
Further disassembly steps for the indoor unit, including evaporator.
Indoor Unit Control Box & Louver Disassembly
Disassembly steps for the indoor unit's electric control box and louvers.
Outdoor Unit Cover Removal
Initial steps for disassembling the outdoor unit's covers.
Outdoor Unit Control Box Disassembly
Continued disassembly steps for the outdoor unit's control box.
Outdoor Unit Cabinet & Compressor Cover Disassembly
Further disassembly steps for the outdoor unit's side cabinets and compressor covers.
Outdoor Unit Fan, Motor & Terminal Disassembly
Disassembly of outdoor unit's fan, motor, and terminals.
Outdoor Unit Control Box Component Disassembly
Final disassembly steps for the outdoor unit's control box assembly and components.
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