Daikin RWEYQ8T9Y1B Installation And Operation Manual
Vrv iv water-cooled system air conditioner
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Also See for RWEYQ8T9Y1B:
- Installer and user manual (56 pages) ,
- Installer and user reference manual (144 pages) ,
- Installation and operation manual (40 pages)
Table of Contents
Troubleshooting
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Summary of Contents for Daikin RWEYQ8T9Y1B
- Page 1 Installation and operation manual VRV IV water-cooled system air conditioner RWEYQ8T9Y1B RWEYQ10T9Y1B Installation and operation manual RWEYQ12T9Y1B English VRV IV water-cooled system air conditioner RWEYQ14T9Y1B...
- Page 2 2P399209-2B...
- Page 3 2P399209-2B...
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Page 4: Table Of Contents
Table of contents 5.8.2 To route and fix the transmission wiring ...... 20 Table of contents 5.8.3 To connect the transmission wiring......21 5.8.4 To finish the transmission wiring........21 5.8.5 To route and fix the power supply........ 21 5.8.6 To connect the power supply ........ -
Page 5: About The Documentation
Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin extranet (authentication required). For the installer Multilingual fluorinated greenhouse gases label... -
Page 6: To Remove The Transportation Stay
3 About the units and options Accessory pipes Øa Øb Øc Ød About the units and options (mm) Gas pipe 25.4 25.4 25.4 19.1 About the outdoor unit 22.2 ▪ Front connection Øa 28.6 This installation manual concerns the VRV IV water-cooled system Øb air conditioner. -
Page 7: System Layout
4 Preparation Water system System layout Heat recovery system Unit Connection to refrigerant system Water piping Dry cooler Brine loop Closed cooling tower Boiler Preparation Preparing installation site 4.1.1 Installation site requirements of the outdoor unit Mind the spacing guidelines. See the "Technical data" chapter. CAUTION Appliance not accessible to the general public, install it in a secured area, protected from easy access. -
Page 8: To Select The Piping Size
4 Preparation In case of heat recovery mode ▪ All piping lengths and distances have been taken into consideration (see About the piping length in the installer reference guide). ▪ The pipe thickness of the refrigerant piping shall comply with the applicable legislation. -
Page 9: To Select Refrigerant Branch Kits
4 Preparation In case of heat pump mode Size up HP class Liquid piping outer diameter size (mm) Indoor unit capacity Piping outer diameter size (mm) index 18~22 15.9 → 19.1 Gas pipe Liquid pipe <150 15.9 26~34 19.1 → 22.2 150≤x<200 19.1 36~42... -
Page 10: Multiple Outdoor Units: Possible Layouts
4 Preparation ▪ Concerning refnet headers, choose from the following table in Then accordance with the total capacity of all the indoor units connected ≤2 m below the refnet header. Indoor unit capacity 2 pipes 3 pipes index ≤2 m <200 KHRQ22M29H KHRQ23M29H ≤2 m... -
Page 11: Handling The Brazed Plate Heat Exchanger
4 Preparation ▪ Filter. Install the filter in the water piping inlet within a distance of ▪ Scale can stick to the plate heat exchanger depending on water 1.5 m from the outdoor unit. If sand, waste or rust particles are quality. -
Page 12: Preparing Electrical Wiring
4 Preparation To activate the variable flow system, change field setting [2-24] to Correct valve selection is done when following conditions are met: the applicable value. See "6.1 Making field settings" on page 23. (B≥C) AND (E≤A≤D) NOTICE For further selection requirements, refer to "4.4 ... -
Page 13: Installation
5 Installation NOTICE Installation When the installation height of the unit needs to be increased, do not use stands to only support the corners. Opening the units ▪ The preferred installation is on a solid longitudinal foundation (steel beam frame or concrete). The foundation must be larger 5.1.1 To open the outdoor unit than the grey marked area. -
Page 14: To Connect The Refrigerant Piping To The Outdoor Unit
5 Installation 5.3.2 To connect the refrigerant piping to the outdoor unit NOTICE ▪ Be sure to use the supplied accessory pipes when carrying out piping work in the field. ▪ Be sure that the field installed piping does not touch other pipes, the bottom panel or side panel. -
Page 15: To Remove The Pinched Pipes
5 Installation Field piping connection Stop valve cover 2 Connect the vacuuming/recovery unit through a manifold to the service port of all stop valves. p < p > To handle the stop valve cover ▪ The stop valve cover is sealed where indicated by the arrow. Do R410A NOT damage it. -
Page 16: Checking The Refrigerant Piping
5 Installation For more information on the state of the valves, refer to Checking the refrigerant piping "5.4.3 Checking refrigerant piping: Setup" on page 16. 5.4.1 About checking the refrigerant piping 5.4.2 Checking refrigerant piping: General guidelines Refrigerant piping works are Finish piping work. finished? Connect the vacuum pump through a manifold to the service port of all stop valves to increase efficiency (refer to... -
Page 17: To Perform A Leak Test
5 Installation ▪ Be sure to insulate the liquid and gas piping (for all units). NOTICE ▪ Use heat resistant polyethylene foam which can withstand a The connections to the indoor units and all indoor units temperature of 70°C for liquid piping and polyethylene foam which should also be leak and vacuum tested. -
Page 18: About Charging Refrigerant
5 Installation Parameter C. When using more than one multi BS unit, add the sum NOTICE of the individual BS unit charge factors. Before starting charging procedures, check 7‑segment display indication of the outdoor unit A1P PCB Model is as normal (see "6.1.4 ... -
Page 19: Checks After Charging Refrigerant
5 Installation Gas line stop valve NOTICE High pressure/low pressure gas line stop valve Valve A ▪ The refrigerant charging port is connected to the piping Valve B inside the unit. The unit's internal piping is already Valve C factory charged with refrigerant, so be careful when Valve D connecting the charge hose. -
Page 20: Connecting The Water Piping
5 Installation NOTICE Connecting the electrical wiring In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes 5.8.1 Field wiring: Overview -equivalent) is used to determine the maintenance intervals. Follow the applicable legislation. In case of heat recovery mode Formula to calculate the greenhouse gas emissions: GWP value of the refrigerant ×... -
Page 21: To Connect The Transmission Wiring
5 Installation In case of heat pump mode F1 F2 F1 F2 Q1 Q2 Q1 Q2 Q1 Q2 F2 Q1 Q2 TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F2 Q1 Q2... -
Page 22: To Connect The Power Supply
5 Installation 5.8.7 To connect the optional wiring For the optional wiring use insulated wires of a rated voltage of 250 V or higher and a minimal cross section of 1.25 mm² for single core wires and 0.75 mm² for multicore wires. Variable water flow The variable water flow output signal is a low voltage control signal which generates an output of 2~10 V DC depending on the required... -
Page 23: Configuration
6 Configuration Next to making field settings it is also possible to confirm the current operation parameters of the unit. Push buttons 1 2 3 4 5 6 7 8 9 10 Performing special actions (automatic refrigerant charge, test run, etc.) and making field settings (demand operation, low noise, etc.) happens by way of operating the push buttons. -
Page 24: To Access The Field Setting Components
6 Configuration Blinking 6.1.3 To access the field setting components It is not required to open the complete electronic component box to When above situation cannot be confirmed after 12 min, the access the push buttons on the PCB and read out the 7‑segment malfunction code can be checked on the indoor unit user interface display(s). -
Page 25: Mode 1: Monitoring Settings
6 Configuration 6.1.8 Mode 2: Field settings What Changing the value of the ▪ Once mode 2 is selected (push BS1 [2‑8] selected setting in mode 2 for more than 5 seconds) you can target temperature during cooling operation. select the wanted setting. It is done by pushing BS2. -
Page 26: To Connect The Pc Configurator To The Outdoor Unit
7 Commissioning [2‑50] Outdoor unit main PCB Brine type setting. By changing this setting, you can extend the operation range at the Commissioning brine side of the unit. ▪ Normal operation range at brine side (default): for use with water After installation and once the field settings are defined, the installer as heat source medium. -
Page 27: About Test Run
7 Commissioning In case Hydrobox units are present in the system, the pipe length Internal wiring check and the refrigerant situation check will not be performed. Visually check the electrical component box and the ▪ Make sure to carry out the system test operation after the first inside of the unit on loose connections or damaged installation. -
Page 28: Correcting After Abnormal Completion Of The Test Run
Technical data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin extranet (authentication required). Service space: Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for ventilation is available (refer to the figure below). -
Page 29: Piping Diagram: Outdoor Unit
9 Technical data Piping diagram: Outdoor unit SENPH SENPL 4D108945A Charge port Oil separator Stop valve (with service port ∅7.9 mm flare Accumulator connection) Cooling water inlet Compressor Cooling water outlet Charge port / Service port Double tube heat exchanger Filter Liquid receiver Check valve Pressure relief valve... -
Page 30: For The User
10 About the system For the user Heat pump system About the system The indoor unit part of VRV IV heat recovery system can be used for heating/cooling applications. The type of indoor unit which can be used depends on the outdoor units series. NOTICE For future modifications or expansions of your system: A full overview of allowable combinations (for future... -
Page 31: Operation
12 Operation Hot start Operation In order to prevent cold air from blowing out of an indoor unit at the start of heating operation, the indoor fan is automatically stopped. 12.1 Operation range The display of the user interface shows . -
Page 32: Using The Dry Program
13 Maintenance and service To adjust NOTICE For programming temperature, fan speed and air flow direction refer Do not turn off power immediately after the unit stops, but to the operation manual of the user interface. wait for at least 5 minutes. 12.3 Using the dry program 12.4... -
Page 33: About The Refrigerant
14 Troubleshooting When asking your dealer for an intervention, always state: CAUTION ▪ The complete model name of the unit. Do not insert fingers, rods or other objects into the air inlet or outlet. Do not remove the fan guard. When the fan is ▪... -
Page 34: Error Codes: Overview
14 Troubleshooting ▪ When the cool/heat changeover remote control switch is installed Malfunction Measure and the display shows (change-over under centralized The system operates ▪ Check if air inlet or outlet of outdoor or control), this is because cool/heat changeover is controlled by the but cooling or heating indoor unit is not blocked by obstacles. - Page 35 14.2.18 Symptom: Hot air can be felt when the Field supply indoor unit is stopped Equipment not made by Daikin that can be combined with product according instructions Several different indoor units are being run on the same system.
- Page 36 4P452190-1 A 0000000Y 4P452190-1A 2017.04...
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