How to fix Daikin REYQ12T7Y1B ambient temperature sensor malfunction?
If the ambient temperature sensor is malfunctioning on your Daikin Air Conditioner, check the connection on the PCB or actuator.
What to do if my Daikin REYQ12T7Y1B Air Conditioner shows a low pressure malfunction?
If your Daikin Air Conditioner is showing a low pressure malfunction, first open the stop valves. Then, check the refrigerant level and recharge the unit if needed. Finally, inspect the user interface display and the transmission wiring between the outdoor and indoor units.
How to fix a Daikin Air Conditioner indoor unit communication error?
If you experience an indoor unit communication error with your Daikin Air Conditioner, check the user interface connection.
How to troubleshoot a Daikin REYQ12T7Y1B with an activated high pressure switch?
If the high pressure switch is activated on your Daikin Air Conditioner, check the stop valve situation and inspect for any abnormalities in the field piping or airflow over the air-cooled coil.
What to do if my Daikin REYQ12T7Y1B has a refrigerant overcharge or stop valve closed?
If your Daikin Air Conditioner indicates a refrigerant overcharge or a closed stop valve, check the refrigerant amount and recharge the unit if necessary. Also, ensure that the stop valves are open.
How to troubleshoot Daikin Air Conditioner electronic expansion valve (lower heat exchanger)?
If you are experiencing issues with the electronic expansion valve (lower heat exchanger) (Y3E) on your Daikin Air Conditioner, check the connection on the main PCB (X23A) or the actuator.
How to troubleshoot Daikin Air Conditioner electronic expansion valve (receiver gas)?
If you are experiencing issues with the electronic expansion valve (receiver gas) (Y4E) on your Daikin Air Conditioner, check the connection on the main PCB (X25A) or the actuator.
How to troubleshoot Daikin REYQ12T7Y1B Air Conditioner electronic expansion valve (subcool heat exchanger)?
If you are experiencing issues with the electronic expansion valve (subcool heat exchanger) (Y2E) on your Daikin Air Conditioner, check the connection on the main PCB (X22A) or the actuator.
What to do if stop valve closed during Daikin REYQ12T7Y1B Air Conditioner system test run?
If the stop valve is closed or wrong during the system test run of your Daikin Air Conditioner, open the stop valves.
How to open a closed liquid stop valve on a Daikin REYQ12T7Y1B Air Conditioner?
If the liquid stop valve is closed on your Daikin Air Conditioner, open the liquid stop valve.
General| Brand | Daikin |
|---|---|
| Model | REYQ12T7Y1B |
| Category | Air Conditioner |
| Language | English |
Details requirements for selecting and preparing the installation location.
Covers the necessary preparations for refrigerant piping installation.
Specifies requirements for refrigerant piping materials and cleanliness.
Guidance on selecting appropriate refrigerant pipe diameters based on capacity.
Covers the necessary preparations for electrical wiring.
Outlines required safety devices for electrical installation.
Guidelines and procedures for securely mounting the outdoor unit.
Detailed instructions for connecting the refrigerant piping system.
Procedures and guidelines for inspecting the refrigerant piping system.
Procedure for conducting leak tests on the refrigerant piping system.
Steps for removing moisture and air from the refrigerant piping.
Covers the process and precautions for charging refrigerant into the system.
Important safety and operational precautions before charging refrigerant.
Method for calculating the required additional refrigerant charge.
Detailed steps for charging refrigerant, including pre-charging.
Procedure for performing an automatic refrigerant charge.
Procedure for performing a manual refrigerant charge.
Covers the process of connecting field electrical wiring.
Process for manually configuring system settings via the unit's PCB.
Safety warnings and critical preparation steps before commissioning.
List of items to verify before starting the commissioning process.
Overview of the system test run procedure and its purpose.
Step-by-step guide for executing the system's automatic test run.
Procedure for resolving issues identified during the test run.
Procedure for diagnosing and resolving issues using error code tables.
Reference for identifying and understanding system error codes.
Reference table of error codes and their potential causes and solutions.
Description of normal operational symptoms that may appear unusual.
General instructions on how to operate the VRV IV system.
Details on different operating modes available for the system.
Instructions for activating and using the humidity control dry program.
Guidance on controlling and adjusting the unit's air flow direction.
Procedure for designating and configuring the master user interface.
To Next Page