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AIR CONDITIONER
AC052FBCDEH / AC071FBCDEH
AC052HBCDEH / AC071HBCDEH
AC052FCADEH
AC071FCADEH
AC071FCAPEH
SYSTEM AIR CONDITIONER
Basic : NS052CDXEA/RC052DHXEA
Model : AC052FBCDEH/ AC052FCADEH
AC071FBCDEH/ AC071FCADEH
AC052HBCDEH/ AC052FCADEH
AC071HBCDEH/ AC071FCADEH
Model Code :
AC052FBCDEH/EU AC052FCADEH/EU
AC071FBCDEH/EU AC071FCADEH/EU
AC052HBCDEH/EU AC052FCADEH/EU
AC071HBCDEH/EU AC071FCADEH/EU
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram and Parts List
6. Wiring Diagram
7. Reference Sheet
/ AC071FCAPEH
AC071FCAPEH/EU
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Table of Contents
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Summarization of Contents
1. Precautions
1-1 Installing the air conditioner
Guidance on safe and proper installation procedures for air conditioners.
1-2 Power supply and circuit breaker
Ensuring correct power supply and circuit breaker usage for safe air conditioner operation.
1-3 During operation
Important safety guidelines and precautions to follow while the air conditioner is in operation.
1-4 Disposing of the unit
Safe and environmentally responsible procedures for disposing of an air conditioner unit.
1-5 Others
Miscellaneous safety precautions and guidelines for air conditioner usage.
2. Product Specifications
2-1 The Feature of Product
Overview of key features and benefits of the air conditioner models.
2-2 Product Specifications
Detailed technical specifications for various air conditioner models, including dimensions and capacity.
2-3 Accessory and Option Specifications
Details on accessories and optional components available for the air conditioner units.
3. Disassembly and Reassembly
Necessary Tools
List of essential tools required for the disassembly and reassembly of the air conditioner.
3-1 Indoor Unit
Step-by-step guide for disassembling and reassembling the indoor unit components.
3-2 Outdoor Unit
Instructions for disassembling and reassembling the outdoor unit of the air conditioner.
4. Troubleshooting
4-1 Indoor Display Error and Check Method
Diagnosing indoor unit errors using LED indicators and checking methods.
4-1-2 Wired Remocon Error Display
Troubleshooting errors displayed on the wired remote control and their explanations.
4-2 Outdoor LED Error Display and Check Method
Identifying and resolving outdoor unit errors using LED displays and diagnostic methods.
4-3 Setting Option Setup Method
Guide to setting various operational options using the remote controller.
4-4 Items to be checked first
Essential pre-checks and conditions to verify before diagnosing air conditioner malfunctions.
4-5 Fault Diagnosis by Symptom
Step-by-step troubleshooting procedures based on specific system symptoms and errors.
4-6 PCB Inspection Method
Methods for inspecting Printed Circuit Boards (PCBs) and their components.
4-6-1 Pre-inspection Notices
Important safety notices and precautions before inspecting PCBs to prevent electrical hazards.
4-6-2 Inspection Procedure
General procedures for inspecting PCB components and connections within the unit.
4-6-3 Indoor Detailed Inspection Procedure
Detailed steps for inspecting PCBs and components within the indoor unit.
4-6-4 Outdoor Detailed Inspection Procedure
Detailed steps for inspecting PCBs and components within the outdoor unit.
4-7 Main Part Inspection Method
Methods for inspecting the resistance and continuity of key components using a multimeter.
5. PCB Diagram and Parts List
5-1-1 Indoor Main PCB
Diagram and parts list for the main PCB of the indoor air conditioning unit.
5-1-2 Display PCB
Diagram and parts list for the display PCB used in indoor units.
5-1-3 SUB PBA
Diagram and parts list for the SUB PCB components found in indoor units.
5-2-1 Outdoor Unit PCB
Diagram and parts list for the main PCB of the outdoor air conditioning unit.
5-2-2 Outdoor Unit PCB
Diagram and parts list for the SUB PCB of the outdoor unit.
6. Wiring Diagram
6-1 Indoor Unit
Wiring diagram illustrating the electrical connections for the indoor unit.
6-2 Outdoor Unit
Wiring diagram illustrating the electrical connections for the outdoor unit.
7. Preference Sheet
7-1 Refrigerating Cycle Diagram
Diagram illustrating the refrigerant flow and cycle within the air conditioning system.
7-2 Index of Model Name
A guide to understanding and indexing the various model names and their codes.
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