Daikin RXYQ168TAYDU - User Manual

Other manuals for Daikin RXYQ168TAYDU

Installation Manual47 pages

Questions and Answers

V
Veronica CollinsAug 5, 2025
Why is my Daikin RXYQ168TAYDU not cooling or heating air well?
- L
  laurenharrisonAug 5, 2025
  Several factors can cause your Daikin Heat Pump to not cool or heat air effectively. Check for blocked air inlets or outlets on both the indoor and outdoor units and remove any obstructions. Ensure the air filters are clean. Verify that the outdoor unit isn't enclosed. Set the temperature and airflow rate to the appropriate levels. Adjust the direction of air diffusion. Make sure windows and doors are tightly shut. If direct sunlight is entering the room, use curtains or shades. Finally, ensure the model is appropriate for the number of people in the room.
D
Denise HoodAug 9, 2025
How to troubleshoot a Daikin RXYQ168TAYDU Heat Pump that does not start?
- A
  Anthony HallAug 9, 2025
  If your Daikin Heat Pump system isn't starting, there are several potential causes. First, check for blown fuses and replace them if necessary after turning off the power supply. Next, examine the breakers; if any are in the OFF position, turn the power supply ON. Do not turn ON the power supply if any circuit breaker is in a tripped position. If there was a power failure, restart the system after the power is restored. Finally, ensure that all connectors are securely plugged in by turning off the power supply first.
M
Michael HollandAug 13, 2025
What to do if Daikin RXYQ168TAYDU starts then stops immediately?
- J
  Jill SimpsonAug 13, 2025
  If your Daikin Heat Pump starts and then immediately stops, the issue might be due to a blocked air inlet or outlet on either the indoor or outdoor unit; remove any obstacles. Another potential cause is clogged air filters, so ensure you clean them.
L
Lisa MartinezAug 18, 2025
Why does my Daikin RXYQ168TAYDU Heat Pump emit odors?
- M
  Mark WeeksAug 18, 2025
  If you notice odors coming from your Daikin Heat Pump, it's likely due to odors from the room, cigarettes, or other sources that have been adsorbed inside the indoor unit. Cleaning the inside of the indoor unit should resolve this issue.
J
Jessica FisherAug 21, 2025
What does 'UNDER CENTRALIZED CONTROL' mean on my Daikin RXYQ168TAYDU remote?
- J
  Jeremy BurtonAug 21, 2025
  If your Daikin Heat Pump remote controller displays 'UNDER CENTRALIZED CONTROL' and blinks when you press the OPERATION button, it means the system is being controlled by a centralized controller. You should operate the system using the COOL/HEAT centralized remote controller.
D
Daniel WarrenAug 26, 2025
Why does a white mist come out of my Daikin Heat Pump?
- L
  luisjohnsonAug 26, 2025
  If you see a white mist coming from your Daikin Heat Pump, it's likely due to uneven temperature distribution caused by heavy stains inside the indoor unit. You should clean the inside of the indoor unit.
M
Michele MillsAug 30, 2025
How to fix a Daikin RXYQ168TAYDU Heat Pump louver that doesn't close completely?
- T
  Tracy ValentineAug 30, 2025
  To address a louver that doesn't fully close in stop mode on your Daikin Heat Pump, turn off the circuit breaker and then turn it back on again.

Summary

Part 2 Refrigerant Circuit

Refrigerant Circuit

Refrigerant Flow for Each Operation Mode

Diagrams showing refrigerant flow during cooling, heating, and other operation modes.

Part 3 Remote Controller

Centralized Control Group No. Setting

Service Mode

Instructions for accessing service data and settings using the remote controller.

Part 4 Functions and Control

Operation Flowchart (Outdoor Unit)

Startup Control

Protection Control

Explains various protection mechanisms like high/low pressure, compressor, and inverter protection.

Outline of Control (Indoor Unit)

Part 5 Field Settings

Field Setting from Remote Controller

Instructions for configuring system parameters using the wired or wireless remote controller.

Field Settings for Outdoor Unit

Details on setting outdoor unit parameters via DIP switches or BS buttons.

Test Operation

Procedures for performing checks and tests before and after system startup.

Part 6 Service Diagnosis

Symptom-based Troubleshooting

Guides for diagnosing system issues based on observed symptoms and potential causes.

Service Check Function

Procedures for using the remote controller's service check and inspection modes.

Troubleshooting by Error Code

Comprehensive list of error codes, their descriptions, and troubleshooting steps.

Check

Daikin RXYQ168TAYDU Specifications

General

Model	RXYQ168TAYDU
Category	Heat Pump
Brand	Daikin
Refrigerant	R-32
Power Supply	3 Phase, 400V
Indoor Unit Compatibility	Compatible with various Daikin indoor units
Operating Temperature Range (Cooling)	-5°C to 46°C
Operating Temperature Range (Heating)	-20°C to 24°C