To Next PageTo Next PageWhy is my Daikin RXYQ18T7Y1B Air Conditioner discharge temperature too high?
The discharge temperature may be too high due to a closed stop valve or a refrigerant shortage. To resolve this, open the stop valves and check the refrigerant amount, recharging the unit if necessary.
What to do if my Daikin Air Conditioner has low pressure malfunction?
If your Daikin Air Conditioner is showing a low pressure malfunction, the stop valve might be closed, there could be a refrigerant shortage, or there might be an indoor unit malfunction. You should open the stop valves, check the refrigerant level and recharge if needed. Also, verify the user interface display and the transmission wiring between the outdoor and indoor units.
Why is my Daikin RXYQ18T7Y1B compressor casing temperature too high?
A high compressor casing temperature could be due to a closed stop valve or a refrigerant shortage. The suggested solution is to open the stop valves and check the refrigerant amount, recharging the unit if necessary.
What causes Daikin Air Conditioner high pressure switch activation?
The high pressure switch in your Daikin Air Conditioner might be activating because of a stop valve issue or abnormalities in the field piping, or airflow over the air cooled coil.
What to do if my Daikin RXYQ18T7Y1B indicates unusual low pressure on suction line?
If your Daikin Air Conditioner shows unusual low pressure on the suction line, immediately close valve A and push BS1 to reset. Before retrying the auto charge procedure, verify that the gas side stop valve and the refrigerant cylinder valve are opened correctly, and that the air inlet and outlet of the indoor unit are not obstructed.
How to fix Daikin RXYQ18T7Y1B electronic expansion valve malfunction (subcool)?
To address an electronic expansion valve malfunction (subcool) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
How to fix Daikin RXYQ18T7Y1B Air Conditioner electronic expansion valve malfunction (main)?
To fix an electronic expansion valve malfunction (main) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
How to fix Daikin RXYQ18T7Y1B electronic expansion valve malfunction (storage vessel)?
To fix an electronic expansion valve malfunction (storage vessel) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
What to do if my Daikin Air Conditioner is preventing freeze-up in the indoor unit?
If your Daikin Air Conditioner is preventing freeze-up in the indoor unit, immediately close valve A and push BS1 to reset. Then, retry the auto charge procedure.
What to do if my Daikin Air Conditioner ambient temperature sensor malfunctions?
If the ambient temperature sensor on your Daikin Air Conditioner malfunctions, check the connection on the PCB or actuator.
General| Brand | Daikin |
|---|---|
| Model | RXYQ18T7Y1B |
| Category | Air Conditioner |
| Language | English |
Comprehensive safety instructions for installers and users, covering site, refrigerant, electrical, and general handling.
Information on the documentation set, unpacking, and accessory removal for the outdoor unit.
Details on outdoor unit identification, system layout, and general unit description.
Guidance on combining outdoor and indoor units, including compatibility and available options.
Requirements for installation site, refrigerant piping, leak testing, and safety precautions.
Compliance and safety requirements for electrical wiring, safety devices, and connection procedures.
Steps for mounting the outdoor unit and connecting refrigerant piping, including leak testing.
Procedures for charging refrigerant and connecting electrical wiring, with safety precautions.
Guide to making field settings using push buttons, DIP switches, and accessing different operation modes.
Details on monitoring settings, field parameters, and comfort settings for system optimization.
Instructions for connecting a PC configurator and description of energy saving operation methods.
Introduction to the commissioning process, safety precautions, and pre-commissioning checklist.
Procedures for performing a system test run, interpreting results, and correcting any detected malfunctions.
Safety precautions for maintenance, electrical hazard prevention, and service mode operations.
Recommended maintenance cycles for components and guidelines for shortened cycles due to environmental factors.
Guide to understanding and resolving system malfunctions based on displayed error codes and their causes.
Explanation of normal system behaviors that may appear as malfunctions, such as delayed start or mist formation.
Information for users on the VRV IV system, user interface, and pre-operation warnings.
Explanation of operating ranges, modes (cooling, heating, fan), and heating operation specifics.
Instructions for using the dry program and adjusting the air flow direction for optimal comfort.
Procedures for setting the master user interface and managing system operation across multiple units.
Precautions for energy saving, adjusting outlets, room temperature, and ventilation for optimal performance.
Advice on contacting dealers for relocation and following regulations for unit disposal.
Definitions of technical terms used in the manual, including installer, user, and legislation.
