To Next PageTo Next PageHow to fix Daikin VRV IV RYYQ10T7Y1B Air Conditioner electronic expansion valve malfunction (subcool)?
To fix the electronic expansion valve malfunction (subcool) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
How to fix Daikin VRV IV RYYQ10T7Y1B electronic expansion valve malfunction (main)?
To fix the electronic expansion valve malfunction (main) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
How to fix Daikin VRV IV RYYQ10T7Y1B electronic expansion valve malfunction (storage vessel)?
To fix the electronic expansion valve malfunction (storage vessel) on your Daikin Air Conditioner, check the connection on the PCB or the actuator.
Why is my Daikin Air Conditioner discharge temperature too high?
If the discharge temperature is too high on your Daikin Air Conditioner, the stop valves might be closed, or there could be a refrigerant shortage. To resolve this, open the stop valves and check the refrigerant amount, recharging the unit if necessary.
What to do if Daikin VRV IV RYYQ10T7Y1B compressor casing temperature is too high?
If the compressor casing temperature is too high on your Daikin Air Conditioner, the stop valves may be closed, or there might be a refrigerant shortage. You should open the stop valves and check the refrigerant amount, recharging the unit if needed.
What to do if my Daikin VRV IV RYYQ10T7Y1B has low pressure malfunction?
If your Daikin Air Conditioner is showing a low pressure malfunction, it could be due to closed stop valves, a refrigerant shortage, or an indoor unit malfunction. Try opening the stop valves, checking the refrigerant amount and recharging the unit if necessary. Also, check the user interface's display or the transmission wiring between the outdoor and indoor units.
What to do if Daikin Air Conditioner high pressure switch was activated?
If the high pressure switch on your Daikin Air Conditioner was activated, check the stop valve situation, or look for abnormalities in the field piping or airflow over the air-cooled coil.
General| Brand | Daikin |
|---|---|
| Model | VRV IV RYYQ10T7Y1B Series |
| Category | Air Conditioner |
| Language | English |
Provides an overview of the document's content and purpose.
Identifies the intended readers of the manual, including installers and end-users.
Indicates sections specifically relevant to installation professionals.
Instructions for safely removing accessories included with the outdoor unit.
Specifies the required diameters for various accessory pipes used in the system.
Focuses on the specifications and types of outdoor units supported by the manual.
Lists the available models of VRV IV outdoor units and their descriptions.
Illustrates the overall system configuration and component relationships.
Procedure for removing the transportation stay to prevent damage or vibration during operation.
Covers the requirements for selecting and preparing the location for the outdoor unit installation.
Details specific criteria for the outdoor unit's installation location, including spacing.
Addresses special considerations for installing the outdoor unit in cold weather conditions.
Guides the process of preparing and installing the refrigerant piping system.
Specifies the materials, cleanliness, and quality standards for refrigerant piping.
Provides guidance and tables for choosing the correct pipe sizes based on system capacity.
Explains how to choose the appropriate refrigerant branch kits for system configuration.
Details piping specifications for connections between branch kits and indoor units.
Outlines piping requirements for connections between branch kits and BP units.
Specifies piping for connections between BP units and RA DX indoor units.
Highlights specific requirements and limitations when using FXTQ indoor units.
Lists the allowed combinations of outdoor and FXTQ indoor units.
Illustrates different system configurations for outdoor and indoor unit connections.
Defines maximum allowable piping lengths and height differences for system performance.
Details piping specifications from the outdoor unit to the first branch kit.
Specifies piping requirements for connections between refrigerant branch kits.
Describes piping specifications for connections between branch kits and indoor units.
Identifies the models for refnet joints used in system piping.
Specifies the models for refnet headers used in system piping.
Explains the need for and calculation of extra refrigerant when using FXTQ units.
Shows different ways to lay out piping for systems with multiple outdoor units.
Details restrictions and guidelines for connecting piping between multiple outdoor units.
Covers the process of preparing and connecting electrical wiring for the system.
Specifies the required safety devices and their specifications for electrical installation.
Provides wiring and fuse selection guidance for common system configurations.
Instructions on how to safely open the outdoor unit for access to internal components.
Step-by-step guide on accessing the outdoor unit's interior.
Detailed steps for opening the outdoor unit's electrical component box.
Guidance on securely mounting the outdoor unit to prevent vibration and noise.
Instructions for creating a stable and level foundation for the outdoor unit.
Covers the procedures for connecting the refrigerant piping to the system.
Explains how to correctly route the refrigerant piping for front or side connections.
Specific instructions for connecting field-installed piping to the outdoor unit.
Details on how to properly install multi connection piping kits to avoid malfunctions.
Instructions for preparing knockout holes when installing multiple outdoor units.
Methods to seal openings to prevent dirt ingress and maintain unit efficiency.
Guidance on the proper use and operation of stop valves and service ports.
Provides specifications for torque values when tightening various valve components.
Step-by-step procedure for safely removing pinched refrigerant pipes.
Outlines the process for verifying the integrity of the refrigerant piping.
Introduces the importance and methods for checking refrigerant piping.
Describes the initial installation procedure for leak testing before powering the unit.
Explains how to perform leak testing after the system has been powered on.
Provides general advice and best practices for checking refrigerant piping systems.
Details the setup required for performing refrigerant piping checks and vacuum drying.
Specific steps for conducting a leak test on the refrigerant piping system.
Procedure for checking leaks using a vacuum test method.
Method for performing a pressure leak test using nitrogen gas.
Instructions for removing moisture and air from the refrigerant piping.
Covers the critical process of charging the system with refrigerant.
Important safety warnings and precautions to follow during refrigerant charging.
General information and considerations for charging the refrigerant.
Explains how to calculate the precise amount of refrigerant needed for the system.
Visual guide illustrating the refrigerant charging process flow.
Steps for pre-charging the system with refrigerant before full operation.
Outlines the subsequent steps in the refrigerant charging procedure.
Continues the description of the refrigerant charging process.
Specific step in the refrigerant charging procedure.
Further step in the refrigerant charging procedure.
Details the process for automatic refrigerant charging.
Explains how to perform manual refrigerant charging.
Comprehensive guide on how to charge the system with refrigerant.
Steps for pre-charging the system with refrigerant.
Detailed instructions for the automatic refrigerant charging procedure.
Detailed instructions for the manual refrigerant charging procedure.
Lists and explains error codes that may occur during refrigerant charging.
Important checks to perform after completing refrigerant charging.
Instructions for applying the fluorinated greenhouse gases label to the unit.
Guide to connecting the electrical wiring for the system.
Provides an overview of field wiring, including power and communication lines.
Procedures and precautions for creating knockout holes for wiring.
Instructions on routing and securing transmission wiring within the unit.
Details on connecting the transmission wiring to the outdoor unit's PCB.
Steps for securing and finishing the transmission wiring installation.
Guidance on routing and securing the power supply wiring.
Instructions for connecting the main power supply to the unit.
Identifies and explains the functions of push buttons and DIP switches on the PCB.
Guides the installer through making essential field settings for the system.
Introduces the concept and importance of field settings for system configuration.
Describes Mode 1 for monitoring system status and parameters.
Explains Mode 2 for changing and configuring system field settings.
Information on using a PC configurator for system setup and configuration.
Overview of the two modes used for system configuration and monitoring.
Instructions on how to access the PCB for making field settings.
Explains the default state of the system upon initial power-up.
Guide on operating Mode 1 for basic settings and monitoring.
Instructions for using Mode 2 to input and change field settings.
Detailed list of parameters and information available in Mode 1.
Displays the master/slave status of the outdoor unit.
Shows the status of low noise operation for the unit.
Indicates the status of power consumption limitation operation.
Displays target temperature settings for cooling and heating.
Shows the total number of connected indoor units.
Indicates the total number of connected outdoor units in a multi-system.
Shows the latest malfunction codes recorded by the system.
Displays estimated leaked refrigerant amounts from recent leak detection operations.
Indicates the remaining days until the next automatic leak detection.
Shows the results of recent automatic leak detection operations.
Lists specific field settings adjustable in Mode 2.
Setting for Cool/Heat selection based on indoor unit type or master interface.
Setting for target temperature during cooling operation.
Setting for target temperature during heating operation.
Input field for the additional refrigerant amount charged.
Setting for manual additional refrigerant charge operation.
Setting related to height difference between indoor and outdoor units.
Setting for height difference between indoor and outdoor units.
Master user interface allocation for VRV DX and RA DX indoor units.
Instructions for connecting a PC to the outdoor unit for configuration.
Critical safety precautions and warnings to observe during commissioning.
A checklist of essential items to verify before starting the commissioning process.
Explains the purpose and procedures for performing a system test run.
Detailed steps for executing the system test run procedure.
Guidance on how to interpret and resolve issues indicated by error codes.
A comprehensive list and explanation of system error codes and their causes.
Lists malfunctions related to the automatic refrigerant charging process.
Lists malfunctions associated with the leak detection functionality.
Specifies the required clearances around the outdoor unit for servicing and ventilation.
Illustrates the refrigerant piping connections for various outdoor unit models.
Shows the different models of VRV IV outdoor units and their descriptions.
Specifies the recommended operating temperature and humidity ranges for safe system use.
Covers the basic procedures for operating the VRV IV system.
General information on system operation procedures.
Explains the different operating modes available for the system.
Details specific aspects of the system's heating operation, including defrost.
Describes the process of defrost operation to maintain heating efficiency.
Explains the "hot start" feature to prevent cold air discharge.
Instructions for operating the system using standard controls without a remote switch.
Instructions for operating the system with a cool/heat changeover remote control switch.
Explains the "dry program" function for humidity control.
Provides details on the dry program's functionality and limitations.
Steps to activate the dry program without a remote control switch.
Steps to activate the dry program using a remote control switch.
Guide on how to adjust the air flow direction for optimal comfort.
Information about the air flow flap and its automatic control.
Procedures for designating and configuring the master user interface.
Details on setting the master user interface for system management.
Information regarding the refrigerant used, safety, and environmental impact.
Information on warranty coverage and recommended service intervals.
Details on the warranty period and required documentation.
Recommendations for routine maintenance and inspection to ensure optimal performance.
A comprehensive list of error codes, their causes, and solutions.
Identifies common symptoms that do not indicate actual system malfunctions.
Troubleshooting steps for when the system fails to start.
Addresses issues with changing between cooling and heating modes.
Troubleshooting steps for fan operation without cooling or heating.
Explains why fan speed might not match the setting.
Addresses issues with incorrect fan direction control.
Explains the occurrence of white mist from indoor units.
Explains white mist from both indoor and outdoor units.
Explains U4/U5 errors and intermittent stops due to electrical interference.
Describes common noises from indoor units, like the "zeen" sound.
Explains common noises from both indoor and outdoor units.
Describes noises specific to the outdoor unit operation.
Explains dust emission when the unit is first used after a long period.
Describes how units can absorb and emit room odors.
Explains that the outdoor fan speed is controlled and may appear stopped.
Indicates the display showing "88" means the unit is in normal condition after power-on.
Explains that the compressor stays on to prevent refrigerant from remaining.
Explains the crankcase heater keeps the compressor warm for smooth startup.
Explains refrigerant flow in multi-unit systems when one unit is running.
