To Next PageTo Next PageWhy is my Daikin RYMQ10T7Y1B 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 RYMQ10T7Y1B Air Conditioner 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 RYMQ10T7Y1B 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 RYMQ10T7Y1B 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 RYMQ10T7Y1B 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 RYMQ10T7Y1B 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 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 RYMQ10T7Y1B 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.
Information about the documentation set, including warnings and symbols.
Safety precautions for users, including operation and handling warnings.
Safety precautions and guidelines for installers, covering installation and general safety.
General guidelines and notices for installers regarding installation and safety.
Requirements and restrictions for selecting an installation site for the outdoor unit.
Precautions and standards related to refrigerant handling and installation.
Safety precautions related to brine usage, handling, and potential hazards.
Safety precautions related to water usage and quality compliance.
Critical safety precautions for electrical work, including shock and fire prevention.
Details the purpose, audience, and contents of the documentation set.
Describes actions after the outdoor unit box is delivered, including unpacking and handling.
Step-by-step instructions for removing the outdoor unit from its packaging.
Information on outdoor unit identification, system layout, and indoor unit combinations.
Explains the model identification code structure and meaning.
Provides details about the VRV IV heat pump system, its line-up, and applications.
Illustrates the system layout with various units and components connected.
Covers combining units, options, and possible indoor unit combinations.
Notes on consulting technical data for system setup and allowed combinations.
Information on allowable indoor unit combinations with VRV IV heat pump systems.
Lists possible standalone and combined outdoor unit configurations.
Details optional kits and accessories available for the outdoor unit.
Introduces the preparation steps required before installation on-site.
Details requirements for the installation site, including space, ventilation, and location restrictions.
Specifies general site requirements, prohibited locations, and interference considerations.
Provides specific installation requirements for outdoor units in cold climates, including snow and humidity.
Discusses safety measures and regulations regarding refrigerant leaks and concentration limits.
Outlines requirements and procedures for preparing refrigerant piping.
Specifies material, cleanliness, and tightness requirements for refrigerant piping.
Guides on selecting the correct piping size based on capacity and length.
Instructions for selecting appropriate refrigerant branch kits and headers.
Details maximum allowable piping lengths, level differences, and branching limitations.
Specifies piping length limits for systems with only VRV DX indoor units.
Details piping length limits for systems combining VRV DX and Hydrobox units.
Specifies piping length limits for systems with VRV DX and RA DX indoor units.
Outlines specific requirements when using FXTQ indoor units, including combinations and piping.
Illustrates possible piping layouts for multiple outdoor units to prevent oil retention.
Covers electrical wiring preparation, compliance, and safety devices.
Details compliance with electrical standards for voltage and current.
Specifies requirements for power supply protection, fuses, and circuit breakers.
Introduces the installation chapter and lists key topics like opening units and connecting piping.
Instructions for opening the outdoor unit and accessing the electrical component box.
Details how to open the front plates of the outdoor unit for access.
Provides steps to open the electrical component box cover for service access.
Instructions for securely mounting the outdoor unit on a base to prevent vibration and noise.
Details requirements for the foundation, base height, and fastening the unit.
Outlines precautions and general steps for connecting refrigerant piping.
Safety precautions, legislation compliance, and stress avoidance for refrigerant piping.
General overview of connecting refrigerant piping after units are mounted.
Instructions for routing refrigerant piping, including front and side connections and knockout holes.
Precautions for making knockout holes, including avoiding damage and rust prevention.
Instructions for correctly installing multi connection piping kits, including orientation and length.
Details knockout hole removal for front and bottom connections in multiple outdoor unit systems.
Instructions for mounting refnet joints and headers for refrigerant branching kits.
Methods for protecting piping from dirt, liquid, or dust during installation.
Precautions and procedures for brazing pipe ends, including nitrogen purging and flux usage.
Guidance on handling stop valves and service ports, including opening and closing procedures.
Procedure for safely removing pinched pipes, warning about potential gas blow-off.
Outlines the process for checking refrigerant piping, including leak testing and vacuum drying.
Outlines the process for checking refrigerant piping, including leak testing and vacuum drying.
General guidance on connecting vacuum pumps and using specific equipment for efficiency.
Details the setup for checking refrigerant piping, including valve states and connections.
Describes procedures for vacuum and pressure leak tests to detect refrigerant leaks.
Step-by-step instructions for performing vacuum drying to remove moisture from the system.
Instructions for insulating refrigerant piping after leak testing and vacuum drying.
Critical safety warnings and precautions for charging refrigerant, including R410A usage.
Critical safety warnings and precautions for charging refrigerant, including R410A usage.
Outlines the two methods for charging additional refrigerant after vacuum drying.
Provides formulas and guidance for calculating the additional refrigerant amount needed.
Provides a flowchart for the refrigerant charging process, including pre-charging and main charging steps.
Provides detailed procedures for automatic and manual refrigerant charging.
Detailed procedure for automatic refrigerant charging, including conditions and display indications.
Detailed procedure for manual refrigerant charging, including field settings and operation.
Lists error codes, causes, and solutions related to refrigerant charging operations.
Checklist to verify correct operation after refrigerant charging is complete.
Instructions for filling out and affixing the fluorinated greenhouse gases label.
Critical safety warnings and requirements for electrical wiring installation by licensed electricians.
Critical safety warnings and requirements for electrical wiring installation by licensed electricians.
Overview of field wiring, covering power supply and indoor-outdoor communication wiring.
Guidelines for separating power and transmission wiring to prevent interference.
Recommendations for punching knockout holes and preventing damage, rust, and animal entry.
Instructions for routing and fixing transmission wiring to the outdoor unit.
Details on connecting indoor unit wiring to the outdoor unit PCB terminals.
Steps for finishing transmission wiring, including wrapping and fixing.
Guidance on routing and fixing power supply wiring, including earth wire considerations.
Instructions for connecting the power supply, emphasizing proper earth connection and terminal torque.
Introduces the configuration chapter, covering field settings, energy saving, and leak detection.
Explains how to make manual field settings using push buttons and DIP switches on the PCB.
Describes the process of inputting field settings via PCB push buttons and reading 7-segment displays.
Identifies the locations of 7-segment displays, push buttons, and DIP switches on the PCB.
Details how to access the push buttons and displays by removing the front inspection cover.
Explains how to access mode 1 (monitoring) and mode 2 (field settings) using the BS1 button.
Guides on using mode 1 for basic settings and monitoring unit status and parameters.
Explains how to use mode 2 for changing field settings of the outdoor unit and system.
Details various monitoring parameters accessible in mode 1, such as unit status and connected devices.
Lists and explains various field settings available in mode 2, categorized by function like Cool/Heat selection and temperature.
Instructions for connecting a PC to the outdoor unit for configuration using the EKPCCAB option.
Explains energy-saving features and how to optimize system performance.
Explains different operation methods (Basic, Automatic, Hi-sensible/economic) for energy saving.
Details comfort settings (Powerful, Quick, Mild, Eco) to optimize user comfort and energy usage.
Illustrates the automatic mode operation during cooling, showing temperature and load curves.
Illustrates the automatic mode operation during heating, showing temperature and load curves.
Explains how to use the leak detection function for system safety.
Explains how to activate and use the automatic leak detection function, including prerequisites.
Step-by-step guide for manually performing a leak detection test and interpreting results.
Introduces the commissioning chapter, emphasizing the installer's obligation to verify correct operation after installation.
Safety precautions to be observed during commissioning, including electrical hazards and operating conditions.
A checklist of items to verify before powering up the unit for commissioning.
Explains the purpose and procedure of the system test run to check operation and detect malfunctions.
Detailed steps for performing the system test run, including initial checks and operation.
Procedures for correcting issues identified during an abnormal test run completion.
Introduces the maintenance chapter and recommended service intervals.
Safety precautions for performing maintenance, focusing on electrical hazards and electrostatic discharge.
Specific steps to prevent electrical hazards when servicing equipment, including power disconnection and voltage checks.
Explains how to use service mode for vacuuming and recovery operations.
Steps for putting the unit into vacuum mode and performing evacuation.
Guidance on recovering refrigerant, emphasizing the use of separate recovery systems.
Procedures for maintenance after a period of inactivity, including cleaning and pre-operation checks.
Procedures for maintenance before a period of inactivity, including fan-only operation and power off.
Information about the refrigerant type (R410A) and handling precautions.
Information on warranty, recommended maintenance, and contacting dealers.
Details about the product's warranty period and checking the warranty card.
Recommendations for maintenance and inspection beyond basic tasks to ensure optimal performance.
Provides recommended cycles for maintenance and replacement of key components.
Lists situations that may require shortened maintenance and replacement cycles.
Introduces the troubleshooting chapter and its focus on solving problems based on error codes.
General guidance on performing corrective actions for displayed malfunction codes.
A table listing main and sub codes, their causes, and recommended solutions for various malfunctions.
Describes common symptoms that are not actual system malfunctions.
Describes a symptom where the system does not start immediately after power-on.
Explains symptoms related to cool/heat changeover control, especially with slave user interfaces.
Addresses the symptom where only fan operation works, but cooling/heating does not.
Explains why fan speed might not match the setting, especially during heating defrost.
Describes symptoms where fan direction is not as expected due to microcomputer control.
Explains white mist from the indoor unit, often due to high humidity or contamination.
Explains white mist from indoor/outdoor units, often after defrost operation.
Addresses user interface errors U4/U5 caused by electrical appliance noise.
Describes various normal operating noises from the indoor unit, like zeen, shah, and pishi-pishi sounds.
Explains normal hissing sounds from refrigerant flow during cooling or defrost.
Describes noise changes in the outdoor unit due to frequency variations.
Explains dust emission when the unit is used after a long period of inactivity.
Explains how units can absorb and emit room odors.
Addresses the symptom of the outdoor unit fan not spinning, which is due to controlled fan speed.
Explains the "88" display immediately after power-on as normal.
Explains the compressor not stopping immediately after heating to prevent refrigerant issues.
Explains the outdoor unit warming due to the crankcase heater for smooth compressor starts.
Explains hot air felt when indoor unit is stopped due to refrigerant flow from other operating units.
Guides on troubleshooting problems by identifying symptoms.
Introduces the technical data chapter and lists the types of information provided.
Provides dimensional drawings and specifications for the outdoor units.
Details the required service space around the outdoor unit for adequate access and airflow.
Illustrates and lists the components of the outdoor units.
Shows the layout of components within the electrical component box.
Provides piping diagrams for various outdoor unit models.
Presents the wiring diagram for the outdoor units.
Lists key technical specifications for outdoor units, including dimensions, weight, and performance.
Details indoor unit capacity based on outdoor unit HP class and connection ratio.
Illustrates the system layout and identifies the different outdoor unit models available.
Specifies the safe and effective operating ranges for temperature and humidity.
Guides on how to operate the VRV IV system, including power on and initial checks.
Covers basic operation procedures and turning on the main power switch.
Explains different operation modes and how to select them via the user interface.
Details the heating operation, including defrost cycles and preventing capacity drops.
Instructions for operating the system using a user interface without a separate changeover switch.
Guides on operating the system using a user interface with a cool/heat changeover remote control.
Explains how to use the dry program for humidity reduction with minimal cooling.
Details the function and limitations of the dry program.
Steps for using the dry program without a separate changeover switch.
Steps for using the dry program with a cool/heat changeover remote control.
Information on adjusting air flow direction and flap positions.
Explains the air flow flap functionality and adjustment for different unit types.
Explains how to designate a master user interface for system control and configuration.
Explains how to designate a master user interface for system control and configuration.
Procedure for designating a master user interface for systems with VRV DX and Hydrobox units.
Procedure for designating a master user interface for systems with VRV DX and RA DX units.
Describes alternative control systems like group control and dual user interface systems.
Explains different operation methods (Basic, Automatic, Hi-sensible/economic) for energy saving.
Details comfort settings (Powerful, Quick, Mild, Eco) to optimize user comfort and energy usage.
Procedures for maintenance after a period of inactivity, including cleaning and pre-operation checks.
Procedures for maintenance before a period of inactivity, including fan-only operation and power off.
Information about the refrigerant type (R410A) and handling precautions.
Information on warranty, recommended maintenance, and contacting dealers.
Details about the product's warranty period and checking the warranty card.
Recommendations for maintenance and inspection beyond basic tasks to ensure optimal performance.
Provides recommended cycles for maintenance and replacement of key components.
Lists situations that may require shortened maintenance and replacement cycles.
Introduces the troubleshooting chapter and its focus on solving problems based on error codes.
General guidance on performing corrective actions for displayed malfunction codes.
A table listing main and sub codes, their causes, and recommended solutions for various malfunctions.
Describes common symptoms that are not actual system malfunctions.
Describes a symptom where the system does not start immediately after power-on.
Explains symptoms related to cool/heat changeover control, especially with slave user interfaces.
Addresses the symptom where only fan operation works, but cooling/heating does not.
Explains why fan speed might not match the setting, especially during heating defrost.
Describes symptoms where fan direction is not as expected due to microcomputer control.
Explains white mist from the indoor unit, often due to high humidity or contamination.
Explains white mist from indoor/outdoor units, often after defrost operation.
Addresses user interface errors U4/U5 caused by electrical appliance noise.
Describes various normal operating noises from the indoor unit, like zeen, shah, and pishi-pishi sounds.
Explains normal hissing sounds from refrigerant flow during cooling or defrost.
Describes noise changes in the outdoor unit due to frequency variations.
Explains dust emission when the unit is used after a long period of inactivity.
Explains how units can absorb and emit room odors.
Addresses the symptom of the outdoor unit fan not spinning, which is due to controlled fan speed.
Explains the "88" display immediately after power-on as normal.
Explains the compressor not stopping immediately after heating to prevent refrigerant issues.
Explains the outdoor unit warming due to the crankcase heater for smooth compressor starts.
Explains hot air felt when indoor unit is stopped due to refrigerant flow from other operating units.
Guides on troubleshooting problems by identifying symptoms.
General| Brand | Daikin |
|---|---|
| Model | RYMQ10T7Y1B |
| Category | Air Conditioner |
| Language | English |
