To Next PageTo Next PageWhy is my Daikin RYYQ8T7Y1B 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 RYYQ8T7Y1B 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 RYYQ8T7Y1B 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 RYYQ8T7Y1B Air Conditioner 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 Air Conditioner 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 RYYQ8T7Y1B 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 RYYQ8T7Y1B Air Conditioner 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 RYYQ8T7Y1B 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 | RYYQ8T7Y1B |
| Category | Air Conditioner |
| Language | English |
Explains the documentation set, target audience, and formats.
Safety instructions for users, including warnings and precautions.
Safety instructions and precautions for installers during installation and service.
Defines the document's purpose, target audience, and contents of the documentation set.
Describes actions upon delivery, checking for damage, and handling the unit.
Provides instructions on safely removing the outdoor unit from its packaging.
Describes unit identification, system layout, and indoor unit compatibility.
Explains the model identification code and its meaning for outdoor units.
Provides general information about the VRV IV heat pump system and its model lineup.
Illustrates the typical system layout with component connections.
Details combinations of outdoor units with indoor units and available options.
Outlines key preparation steps before installation.
Details site requirements: space, ventilation, and environmental considerations.
Guidelines for refrigerant piping preparation, selection, and requirements.
Covers electrical compliance and safety device requirements for wiring.
Outlines the installation process and contains information on opening units, mounting, piping, and wiring.
Details how to open the outdoor unit and its electrical component box for access.
Provides instructions for securely mounting the outdoor unit on a strong base.
Guides on connecting refrigerant piping, including precautions and routing.
Explains how to route the refrigerant piping, considering front and side connections.
Provides precautions for connecting refrigerant piping to the outdoor unit, including knockout holes.
Instructions for connecting the multi connection piping kit, with horizontal installation emphasis.
Details how to remove knockout holes for front and bottom connections in multi-unit systems.
Guidance on connecting the refrigerant branching kit, including refnet joint and header mounting.
Describes methods to protect piping from dirt, liquid, or dust during installation.
Precautions and methods for brazing pipe ends, including nitrogen purging and flux usage.
Instructions on handling stop valves and service ports, including tightening torques.
Procedure for safely removing pinched piping, with warnings about residual gas and injury.
Covers refrigerant piping checks, including leak tests and vacuum drying procedures.
Guidance on insulating refrigerant piping after leak test and vacuum drying.
Details the process of charging refrigerant, including precautions and methods.
Covers precautions and procedures for connecting electrical wiring.
Lists error codes encountered during refrigerant charging and their solutions.
Checklist to verify refrigerant charging is complete and correct.
Instructions for filling and affixing the fluorinated greenhouse gases label.
Covers precautions and procedures for connecting electrical wiring.
Highlights critical safety precautions for electrical wiring, including electrocution risks.
Provides an overview of field wiring, covering power supply and communication wiring.
Details guidelines for separating power and transmission wiring to prevent interference.
Instructions on safely punching knockout holes and preventing burrs and animal entry.
Explains how to route and fix transmission wiring through the front side.
Details how to connect transmission wiring to the outdoor unit PCB terminals.
Describes how to wrap and fix transmission wires with refrigerant pipes using finishing tape.
Instructions for routing and fixing power supply wiring, ensuring clearance from earth wires.
Guidance on connecting the power supply, emphasizing earth connection and terminal torque.
Outlines the configuration process, covering field settings, energy saving, and leak detection.
Details how to make field settings using push buttons and DIP switches on the PCB.
Instructions on accessing mode 1 (monitoring) or mode 2 (field settings) via push buttons.
Explains how to use mode 1 for setting basic parameters and monitoring unit status.
Details how to use mode 2 for changing field settings of the outdoor unit and system.
Lists available monitoring settings in mode 1, such as unit status and number of connected units.
Lists available field settings in mode 2, including Cool/Heat selection and temperature targets.
Explains how to connect a PC configurator for system configuration and field settings.
Details advanced energy saving features and how to balance energy use with comfort.
Outlines the commissioning process, typically involving checks, test runs, and error correction.
Highlights safety precautions during commissioning, including risks of electrocution and burning.
Provides a checklist of items to verify before powering up the unit for commissioning.
Explains the purpose and procedure of the system test operation for verification.
Details the system test run, including conditions and steps for execution.
Provides a step-by-step guide on how to perform the system test run.
Guidance on how to correct issues identified during an abnormal test run completion.
Outlines the scope of maintenance and service activities for the system.
Highlights critical safety precautions for maintenance, including electrical hazards and static discharge.
Explains how to use service mode for vacuuming and recovery operations.
Introduces troubleshooting, focusing on solving problems based on error codes.
Explains how to correct malfunctions by referencing error codes and performing actions.
Lists main and sub codes for various malfunctions, their causes, and solutions.
Outlines the types of technical data available, including dimensions, components, and diagrams.
Provides dimensional drawings for the 8-12 HP and 14-20 HP outdoor units.
Details required service space dimensions around the outdoor unit for installation and maintenance.
Illustrates and lists the components of the RYYQ8~12 outdoor unit.
Illustrates and lists the components of the RYYQ14~20 outdoor unit.
Illustrates and lists the components of the RYMQ8~12 outdoor unit.
Illustrates and lists the components of the RYMQ14~20 outdoor unit.
Illustrates and lists the components of the RXYQ8~12 outdoor unit.
Illustrates and lists the components of the RXYQ14~20 outdoor unit.
Shows the layout and components within the outdoor unit's electrical component box.
Presents piping diagrams for RYYQ8~12 and RYYQ14~20 outdoor units.
Presents piping diagrams for RYMQ8~12 and RYMQ14~20 outdoor units.
Presents piping diagrams for RXYQ8~12 and RXYQ14~20 outdoor units.
Provides the wiring diagram for the outdoor unit, including component abbreviations.
Illustrates the wiring diagram for 14+16 HP outdoor units, showing connections and components.
Lists component descriptions and their corresponding abbreviations used in wiring diagrams.
Shows the wiring diagram for 14+16 HP outdoor units and the layout of electrical components.
Provides a comprehensive list of component abbreviations used in the wiring diagrams.
Illustrates the wiring diagram for 18+20 HP outdoor units, showing connections and components.
Lists component abbreviations for 18,20 class outdoor units and their corresponding descriptions.
Provides a component list and legend for wiring diagrams, including wire colors and terminal types.
Details technical specifications for outdoor units, including casing, weight, capacity, and safety devices.
Provides electrical specifications like power supply, current, voltage, and wiring connections.
Lists indoor unit capacity tables based on outdoor unit HP class and connection ratio.
Illustrates the system layout and lists the available outdoor unit models.
Specifies the safe and effective operating ranges for temperature and humidity.
Explains how to operate the system, including power-on procedures and mode selection.
Describes how to use the dry program for humidity reduction with minimal cooling.
Explains how to adjust the air flow direction, including flap movement and fixing.
Details how to set the master user interface for system control and operation mode selection.
Describes alternative control systems like group control and two user interface systems.
Explains different operation methods like Basic, Automatic, and Hi-sensible/economic modes.
Details comfort settings like Powerful, Quick, Mild, and Eco, which affect performance and energy use.
Instructions for performing maintenance after the unit has been stored for a long period.
Guidance on preparing the unit for a long storage period.
Information about the refrigerant type, global warming potential, and handling precautions.
Details warranty periods, recommended maintenance, and dealer contact information.
Lists recommended maintenance and inspection cycles for various unit components.
Identifies situations requiring shortened maintenance and replacement cycles.
Lists main and sub codes for various malfunctions, their causes, and solutions.
Describes common symptoms that are not actual malfunctions and their explanations.
