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Daikin REYQ120PTJU - User Manual

Daikin REYQ120PTJU
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System air conditioner
OPERATION MANUAL
MODEL
RXYQ72PYDN
RXYQ96PYDN
RXYQ120PYDN
RXYQ144PYDN
RXYQ168PYDN
RXYQ192PYDN
RXYQ216PYDN
RXYQ240PYDN
RXYQ72PTJU
RXYQ96PTJU
RXYQ120PTJU
RXYQ144PTJU
RXYQ168PTJU
RXYQ192PTJU
RXYQ216PTJU
RXYQ240PTJU
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.
English
Français
Español
REYQ72PYDN
REYQ96PYDN
REYQ120PYDN
REYQ144PYDN
REYQ168PYDN
REYQ192PYDN
REYQ216PYDN
REYQ240PYDN
REYQ72PTJU
REYQ96PTJU
REYQ120PTJU
REYQ144PTJU
REYQ168PTJU
REYQ192PTJU
REYQ216PTJU
REYQ240PTJU
00_CV_3P215731-1D.fm Page 1 Wednesday, February 6, 2008 11:34 AM

Table of Contents

Questions and Answers

  • J
    Johnny PollardAug 8, 2025
    Why is my Daikin Air Conditioner not cooling or heating enough?
    • D
      Danielle SilvaAug 8, 2025
      If your Daikin Air Conditioner isn't cooling or heating sufficiently, several factors could be at play. First, ensure that neither the air inlet nor outlet of the indoor or outdoor unit is obstructed; remove any blockages to improve ventilation. Next, verify if the remote controller indicates it's time to clean the air filter. Also, review your temperature and fan speed settings on the remote. Other potential issues include open doors or windows, too many people in the room, excessive heat sources, direct sunlight, or an improper airflow angle. Check each of these elements to optimize performance.
  • S
    Samantha WilsonAug 15, 2025
    Why does my Daikin Air Conditioner stop soon after starting?
    • M
      Marisa GallegosAug 15, 2025
      If your Daikin Air Conditioner stops shortly after starting, examine the outdoor and indoor units to ensure that the air inlets and outlets are free from obstructions. Remove any obstacles to ensure proper ventilation. Also, check the remote controller display for an indication to clean the air filter and proceed to clean the air filter.
  • L
    Laura ThompsonAug 23, 2025
    What to do if my Daikin Air Conditioner system does not operate at all?
    • M
      Michael FloresAug 25, 2025
      If your Daikin Air Conditioner system isn't starting, first check for a power failure and wait for the power to be restored. If there is no power failure, check if a fuse has blown and turn off the power supply. Another potential issue is a blown breaker.
  • A
    Allison RogersAug 31, 2025
    What to do if my Daikin Air Conditioner displays 'TEST' and a malfunction code?
    • A
      April SanchezAug 31, 2025
      If the display on your Daikin Air Conditioner shows 'TEST', the unit number, and the TEST operation lamp are flashing, and a malfunction code appears, you should notify your Daikin dealer and report the malfunction code.

Summary

Safety Considerations

Specifications

What to Do Before Operation

Names and Functions of Parts

Identifies and explains the functions of system components.

Remote Controller and Cool;Heat Selector: Name and Function of Each Switch and Display

Operation Range

Operation Procedure

Cooling, Heating, Automatic and Fan Only Operation

Details on how to perform cooling, heating, automatic, and fan-only operations.

Adjustment

Instructions for adjusting temperature, fan speed, and airflow.

Optimum Operation

Seasonal Maintenance

At the Beginning of the Season

Tasks to perform at the start of the operating season.

At the End of the Season

Tasks to perform at the end of the operating season.

Following Symptoms Are Not Air Conditioner Troubles

The System Does Not Operate

Explains why the system might not start immediately after power or mode changes.

It Stops Sometimes

Addresses intermittent stopping due to external electrical interference.

Cool;Heat Cannot Be Changed Over

Explains issues with changing between cooling and heating modes.

Trouble Shooting

System Fails To Operate

Steps to check when the entire system fails to operate.

System Stops After Startup

Troubleshooting steps for systems that stop shortly after startup.

Insufficient Cooling or Heating Performance

Steps to take when cooling or heating performance is inadequate.

After-Sales Service and Warranty

Repair After Warranty Term Expired

Information on obtaining service and repairs after the warranty period.

Minimum Storage Period of Important Parts

Details on the availability of essential replacement parts.

Recommendations for Maintenance and Inspection

Advice on professional maintenance and inspection services.

Recommended Inspection and Maintenance Cycles

Recommended schedules for inspecting and maintaining system components.

Moving and Discarding the Unit

Daikin REYQ120PTJU Specifications

General IconGeneral
BrandDaikin
ModelREYQ120PTJU
CategoryHeat Pump
LanguageEnglish

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