Related Manuals for Daikin REYQ8U7Y1B
Summarization of Contents
1 About the documentation
1.1 About this document
Information about the document's purpose, target audience, and related documentation.
1.2 Meaning of warnings and symbols
Explanation of warning symbols used in the manual and on the unit.
2 General safety precautions
2.1 For the installer
Safety instructions specifically for installers during installation and servicing.
2.1.2 Installation site
Guidelines for selecting a suitable installation site and avoiding unsuitable locations.
2.1.3 Refrigerant — in case of R410A or R32
Safety precautions and regulations related to handling refrigerants like R410A.
2.1.4 Electrical
Electrical safety precautions, including wiring, grounding, and power supply.
4 User safety instructions
4.1 General
General safety warnings and precautions for users.
4.2 Instructions for safe operation
Guidelines for operating the system safely.
5 About the system
5.1 System layout
Description of the VRV IV heat recovery system's outdoor unit models and their configurations.
8 Operation
8.1 Operation range
Temperature and humidity ranges for safe and effective operation of the system.
8.2 Operating the system
Procedures for operating the system, including mode selection and start-up.
8.3 Using the dry program
How to use the dry program for humidity control with minimal temperature change.
8.4 Adjusting the air flow direction
Instructions for adjusting the air flow direction of the indoor units.
8.5 Setting the master user interface
Procedure for designating a master user interface in a multi-unit system.
9 Energy saving and optimum operation
9.1 Available main operation methods
Description of basic and automatic operation methods for energy saving.
9.2 Available comfort settings
Explanation of comfort level settings like Powerful, Quick, Mild, and Eco.
10 Maintenance and service
10.1 Maintenance after a long stop period
Procedures for maintenance after the unit has been stopped for an extended period.
10.2 Maintenance before a long stop period
Procedures for maintenance before a long stop period, such as at the end of the season.
10.3 About the refrigerant
Information about the refrigerant type, GWP, and handling precautions.
11 Troubleshooting
11.1 Error codes: Overview
General information on error codes and how to interpret them.
11.2 Symptoms that are NOT system malfunctions
Common symptoms that do not indicate a system malfunction.
14 Technical data
14.1 Information requirements for Eco Design
Instructions on how to consult Eco Design Lot 21 data and energy labels.
15 About the box
15.1 About LOOP BY DAIKIN
Information about Daikin's environmental commitment and refrigerant recycling program.
15.2 Overview: About the box
Information on unpacking and handling the outdoor unit upon delivery.
15.3 To unpack the outdoor unit
Step-by-step instructions for unpacking the outdoor unit from its packaging.
15.4 To remove the accessories from the outdoor unit
Guidance on locating and removing accessories from the outdoor unit.
15.5 Accessory pipes: Diameters
Table detailing the diameters of accessory pipes for different HP models.
15.6 To remove the transportation stay (only for 14+16 HP)
Instructions for removing the transportation stay from specific HP models.
15.7 To remove the transportation stay (only for 18+20 HP)
Instructions for removing the transportation stay from specific HP models.
16 About the units and options
16.1 Overview: About the units and options
Introduction to the chapter covering unit identification and combinations.
16.2 Identification label: Outdoor unit
Explanation of the model identification label found on the outdoor unit.
16.3 About the outdoor unit
Information regarding the VRV IV heat recovery system's outdoor units, including capacity and operating conditions.
16.4 System layout
Overview of the system layout and connections, including notices for installation.
16.5 Combining units and options
Guidelines on combining different indoor and outdoor units and available options.
17 Unit installation
17.1 Preparing the installation site
Procedures and requirements for preparing the installation site for the outdoor unit.
17.2 Opening the unit
Instructions on how to open the outdoor unit and its electrical component box.
17.3 Mounting the outdoor unit
Guidelines for mounting the outdoor unit, including foundation and structure requirements.
18 Piping installation
18.1 Preparing refrigerant piping
Requirements and procedures for preparing refrigerant piping, including cleaning and insulation.
18.2 Connecting the refrigerant piping
Step-by-step instructions for connecting refrigerant piping, including precautions and methods.
18.3 Checking the refrigerant piping
Procedures for performing leak tests and vacuum drying of the refrigerant piping.
18.4 Charging refrigerant
Precautions and procedures for charging refrigerant into the system.
19 Electrical installation
19.1 About connecting the electrical wiring
Precautions and guidelines for connecting electrical wiring, including safety.
19.2 To route and fix the transmission wiring
Instructions for routing and fixing transmission wiring within the unit.
19.3 To connect the transmission wiring
Steps for connecting transmission wiring from indoor units to the outdoor unit PCB.
19.4 To finish the transmission wiring
Final steps for securing and wrapping transmission wires with refrigerant pipes.
19.5 To route and fix the power supply
Instructions for routing and fixing the power supply wiring.
19.6 To connect the power supply
Procedures for connecting the power supply wiring, including earth connection.
19.7 To check the insulation resistance of the compressor
Steps for measuring the insulation resistance of the compressor.
20 Configuration
20.1 Overview: Configuration
Introduction to configuring the system after installation, covering field settings and energy saving.
20.2 Making field settings
Procedures for making manual input and field settings via the unit's PCB and 7-segment displays.
20.2.7 Mode 1: Monitoring settings
Description of monitoring settings available in Mode 1, such as unit status and noise operation.
20.2.8 Mode 2: Field settings
Detailed explanation of field settings configurable in Mode 2, including Cool/Heat selection and temperature targets.
20.3 Energy saving and optimum operation
Information on advanced energy saving features and optimizing system performance.
20.4 Using the leak detection function
Instructions on using automatic and manual leak detection functions.
21 Commissioning
21.1 Overview: Commissioning
Overview of the commissioning process, including test runs and error correction.
21.2 Precautions when commissioning
Safety precautions to be observed during the commissioning process.
21.3 Checklist before commissioning
A checklist of items to verify before performing the commissioning test run.
21.4 About the test run
Explanation of the system test operation procedure and what it checks.
21.5 To perform a test run
Step-by-step guide to performing the automatic system test run.
21.6 Correcting after abnormal completion of the test run
Actions to take if the test run completes abnormally, including error correction.
23 Maintenance and service
23.1 Maintenance safety precautions
Safety precautions to be followed before performing any maintenance or service work.
23.2 About service mode operation
Information on using service mode for refrigerant recovery and vacuuming operations.
24 Troubleshooting
24.1 Solving problems based on error codes
Guidance on correcting problems by interpreting main and sub malfunction codes.
24.2 Error codes: Overview
A table listing various error codes, their causes, and solutions.
26 Technical data
26.1 Service space: Outdoor unit
Minimum space requirements around the outdoor unit for servicing and air circulation.
26.2 Piping diagram: Outdoor unit
Diagrams illustrating the refrigerant piping layout for different HP models.
26.3 Wiring diagram: Outdoor unit
Diagrams showing the electrical wiring connections for the outdoor unit.
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