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Daikin ATX20JV1B User Manual

Daikin ATX20JV1B
267 pages
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Service
Manual
Inverter Multi for 2 Rooms
H-Series / G-Series
SiBE121123_A
[Applied Models]
O Inverter Multi : Heat Pump

Table of Contents

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Daikin ATX20JV1B Specifications

General IconGeneral
ModelATX20JV1B
CategoryHeat Pump
TypeSplit System
Cooling Capacity2.0 kW
Heating Capacity2.5 kW
RefrigerantR32
Noise Level (Indoor Unit)19 dB(A)
SEER6.1
Indoor Unit Weight9 kg
Power SupplySingle Phase
Voltage (V)220-240 V

Summary

Introduction

Safety Cautions

General safety instructions and warnings for repair work and product usage.

Used Icons

Explains icons used to attract the reader's attention to specific information.

Part 1 List of Functions

Functions Overview

Lists and categorizes various functions and features available for the indoor units.

Part 2 Specifications

Indoor Unit Specifications

Detailed specifications for various indoor unit models, including capacity, airflow, power, and dimensions.

Outdoor Unit Specifications

Detailed specifications for outdoor units, including capacity, compressor, airflow, and dimensions.

Part 3 Printed Circuit Board Connector Wiring Diagrams

Indoor Unit Wiring Diagrams

Wiring diagrams for various indoor unit control PCBs and components.

Remote Controller Wiring Diagrams

Wiring diagrams for wired and wireless remote controller models.

Outdoor Unit Wiring Diagrams

Wiring diagrams for outdoor unit PCBs and components.

Part 4 Function and Control

RA Indoor Unit Functions

Details functions and operations of Room Air (RA) type indoor units.

SA Indoor Unit Functions

Details functions and operations of Supply Air (SA) type indoor units.

Thermistor Functions

Explains the function and role of various thermistors in temperature sensing.

Control Specifications

Outlines control specifications, including mode hierarchy and frequency control.

Part 5 Remote Controller

RA Indoor Unit Remote Controller Operation

Explains the operation and buttons of remote controllers for RA indoor units.

SA Indoor Unit Remote Controller Operation

Explains the operation and buttons of remote controllers for SA indoor units.

Part 6 Service Diagnosis

Troubleshooting with LED Indicators

Guides on troubleshooting errors indicated by LED blinking patterns on indoor and outdoor units.

Problem Symptoms and Measures

Lists common problems and their corresponding troubleshooting steps and measures.

Service Check Functions

Procedures for performing service check functions using remote controllers.

Error Code Indications

Explains error codes displayed on remote controllers for RA and SA indoor units.

RA Indoor Unit Troubleshooting

Detailed troubleshooting steps for various abnormalities in RA indoor units.

SA Indoor Unit Troubleshooting

Detailed troubleshooting steps for various abnormalities in SA indoor units.

Outdoor Unit Troubleshooting

Troubleshooting guide for common errors and abnormalities in outdoor units.

Component Checks

Procedures for checking specific components like thermistors, fan motors, and PCBs.

Part 7 Trial Operation and Field Settings

Pump Down Operation

Procedure for pump down operation, important for relocation or disposal.

Forced Cooling Operation

Details the procedure for forced cooling operation.

Trial Operation Procedures

Instructions for performing trial operation of indoor units.

Field Settings Configuration

Guides on setting up indoor and outdoor units based on installation conditions.

Silicon Grease Application

Instructions on applying silicon grease during PCB replacement for heat dissipation.

Part 8 Appendix

Piping Diagrams

Diagrams illustrating refrigerant piping connections for indoor and outdoor units.

Wiring Diagrams

Electrical wiring diagrams for indoor and outdoor units, including PCB connections.

Component Removal Procedures

References to separate booklets for component removal procedures.

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