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Daikin ATXS25CVMB User Manual

Daikin ATXS25CVMB
298 pages
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C-Series
[Applied Models]
zInverter Multi : Cooling Only
zInverter Multi : Heat Pump
Si12 - 411A

Table of Contents

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Questions and Answers:

Daikin ATXS25CVMB Specifications

General IconGeneral
BrandDaikin
ModelATXS25CVMB
CategoryAir Conditioner
LanguageEnglish

Summary

Introduction

Safety Cautions

Key safety precautions for handling the air conditioner during repair and installation.

Caution in Repair

Specific warnings and precautions to be observed during repair work on the equipment.

Cautions Regarding Products after Repair

Important cautions to follow after the air conditioner repair is completed.

Inspection after Repair

Procedures and checks required after the air conditioner repair is finished.

Part 2 Specifications

Indoor Units - Cooling Only

Detailed specifications for indoor units designed for cooling only.

Outdoor Units - Cooling Only

Detailed specifications for outdoor units designed for cooling only.

Indoor Units - Heat Pump

Detailed specifications for indoor units designed for heat pump operation.

Outdoor Units - Heat Pump

Detailed specifications for outdoor units designed for heat pump operation.

Part 3 Printed Circuit Board Connector Wiring Diagram

Part 4 Function and Control

Control Specification

Detailed specifications on how the air conditioner's operations are controlled.

Heating Peak-cut Control

Control to limit operating frequency and prevent abnormal high pressure during heating.

Defrost Control

Procedure for defrosting the outdoor unit heat exchanger during heating operation.

Electronic Expansion Valve Control

Details on the control functions of the electronic expansion valve.

Malfunctions

Information on detected malfunctions within the system.

Forced Operation Mode

Modes available for installation and service purposes like forced cooling/heating.

Wiring-Error Check

Procedure for checking and correcting wiring errors in the system.

Part 5 System Configuration

Safety Precautions

Essential safety precautions before operating or installing the unit.

Troubleshooting

Guidance on identifying and resolving common operational issues.

Part 6 Service Diagnosis

Caution for Diagnosis

Important cautions to observe before performing diagnostic procedures.

Troubleshooting with the Operation Lamp

How to use the operation lamp for initial troubleshooting of errors.

Problem Symptoms and Measures

A guide to common symptoms and their corresponding solutions.

Error Codes and Description of Fault

Detailed descriptions of error codes and the faults they indicate.

Troubleshooting

General troubleshooting steps for diagnosing unit malfunctions.

Indoor Units

Troubleshooting specific to the indoor units of the system.

Outdoor Units

Troubleshooting specific to the outdoor units of the system.

Indoor Unit PCB Abnormality

Troubleshooting steps for indoor unit PCB abnormalities.

Freeze-up Protection Control or High Pressure Control

Troubleshooting for freeze-up or high pressure control issues.

Fan Motor or Related Abnormality

Diagnosing issues related to the fan motor or its associated components.

Thermistor or Related Abnormality (Indoor Unit)

Troubleshooting abnormal readings from indoor unit thermistors.

Shutter Drive Motor / Shutter Limit Switch Abnormality

Diagnosing issues with the shutter motor or limit switch.

Signal Transmission Error (between Indoor and Outdoor Units)

Troubleshooting signal transmission errors between indoor and outdoor units.

Unspecified Voltage (between Indoor and Outdoor Units)

Diagnosing issues related to unspecified voltage between units.

Freeze-up Protection Control

Troubleshooting steps for freeze-up protection control.

OL Activation (Compressor Overload)

Troubleshooting compressor overload (OL) activation.

Compressor Lock

Diagnosing and troubleshooting compressor lock issues.

DC Fan Lock

Troubleshooting DC fan lock errors.

Input Over Current Detection

Troubleshooting issues related to input over current detection.

Four Way Valve Abnormality

Troubleshooting abnormalities related to the four-way valve.

Part 7 Removal Procedure

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