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Daikin RELQ120TATJU - User Manual

Daikin RELQ120TATJU
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OPERATION MANUAL
Aurora Series
MODEL
RELQ72TATJU
RELQ96TATJU
RELQ120TATJU
RELQ144TATJU
RELQ192TATJU
RELQ240TATJU
RELQ72TAYDU
RELQ96TAYDU
RELQ120TAYDU
RELQ144TAYDU
RELQ192TAYDU
RELQ240TAYDU
RELQ72TAYCU
RELQ96TAYCU
RELQ120TAYCU
RELQ144TAYCU
RELQ192TAYCU
RELQ240TAYCU
System air conditioner
Read these instructions carefully before installation.
Keep this manual in a handy place for future reference.
This manual should be left with the equipment owner.
Regarding the operation procedures of the remote controller,
refer to the manual included to the corresponding remote controller.
3P477778-2A
00_CV_3P477778-2A.indd 1 4/25/2017 15:08:29

Table of Contents

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Questions and Answers

  • B
    Bonnie LeonAug 9, 2025
    Why is my Daikin Air Conditioner not cooling enough?
    • A
      Allison ThompsonAug 9, 2025
      Insufficient cooling or heating in your Daikin Air Conditioner can stem from several causes: * The air inlet or outlet might be blocked. Clear any obstructions to ensure proper ventilation. * The filter may need cleaning. Consult the indoor unit's manual for instructions on cleaning the air filter. * There might be an issue with the temperature setting. Please refer to the 'Operation Procedure'. * The fan speed setting may be incorrect. Please refer to the 'Operation Procedure'. * Open doors or windows could be letting wind in. Close them to maintain the desired temperature. * Direct sunlight entering the room. Use curtains or blinds to block sunlight. * Air flow angle is improper. Please refer to 'Operation Procedure'.
  • J
    Jesse LopezAug 18, 2025
    Why does my Daikin Air Conditioner stop soon after starting?
    • T
      Tyler SimmonsAug 18, 2025
      If your Daikin Air Conditioner stops shortly after starting, consider these possibilities: * The air inlet or outlet may be blocked. Ensure adequate ventilation by removing any obstructions. * The filter may require cleaning. Refer to the Operation Manual of the indoor unit and clean the air filter or element.
  • O
    oyangAug 28, 2025
    What to do if Daikin Air Conditioner does not turn on?
    • T
      Tyler GomezAug 28, 2025
      If your Daikin Air Conditioner isn't turning on, the cause could be one of the following: * A power failure: Simply wait until the power is restored. * A blown fuse: Turn off the power supply. * A blown breaker: Turn the power on with the breaker switch in the OFF position.

Summary

Safety Considerations

Safety Symbols and Hazard Definitions

Installation and Operation Safety Guidelines

Covers safety during installation, repair, and general operation to prevent hazards.

Usage Environment and Restrictions

Pre-Operation Setup and Range

Maintenance and Cleaning Procedures

Filter Indicator Reset Guide

Seasonal Maintenance Guide

Seasonal Maintenance Tasks

Common System Symptoms - Part 1

Operational Anomalies

Addresses common operational issues like non-starting, stopping, or control problems.

Normal Unit Behavior

Explains symptoms like mist, noise, odors, and temperature issues that are normal.

Common System Symptoms - Part 2

Visual and Auditory Symptoms

Explains symptoms like mist, noise, and odors that are normal unit behavior.

Performance-Related Symptoms

Describes symptoms related to temperature, fan operation, and unit status when stopped.

Troubleshooting Guide

Immediate Safety Actions

Provides critical initial actions for malfunctions like burning smells or power issues.

Systematic Fault Diagnosis

Details checks for common issues like system not operating or insufficient cooling/heating.

After-Sales Service and Warranty - Part 1

Dealer Support and Repair Information

After-Sales Service and Warranty - Part 2

Daikin RELQ120TATJU Specifications

General IconGeneral
BrandDaikin
ModelRELQ120TATJU
CategoryHeating System
LanguageEnglish

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