Daikin REYQ120PTJU User Manual

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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.

Daikin REYQ120PTJU Specifications

General

Brand	Daikin
Model	REYQ120PTJU
Category	Heat Pump
Language	English

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

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