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Summary of Contents for Daikin RWEYQ8T8Y1B
- Page 1 INSTALLATION AND OPERATION MANUAL System Air Conditioner RWEYQ8T8Y1B RWEYQ10T8Y1B...
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- Page 3 2P399209-1...
- Page 4 2P399209-1...
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Page 5: Table Of Contents
Opening the unit ................6 5.2. Main components in the unit ............6 Thank you for purchasing this Daikin VRV IV system. 6. Selecting an installation location..........7 The original instructions are written in English. All other languages 7. Dimensions and service space ..........8 are translations of the original instructions. -
Page 6: Meaning Of Used Terms
Equipment which needs to be installed according to instructions in installation work. this manual, but which are not supplied by Daikin. Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage, electric shocks or fire. - Page 7 WARNING CAUTION Install the air conditioner on a foundation strong While following the instructions in this installation enough to withstand the weight of the unit. manual, install drain piping to ensure proper drainage A foundation of insufficient strength may result in the and insulate piping to prevent condensation.
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Page 8: Introduction
RWEYQ-T series. These units are designed for indoor installation and used for cooling, heat pump and heat recovery applications. The RWEYQ-T units can be combined with Daikin VRV series indoor units for air conditioning purposes. The present installation manual describes the procedures for unpacking, installing and connecting the RWEYQ-T units. -
Page 9: Combination And Options
3.5. Combination and options In case the insulation material of the multi outdoor unit piping kit has to comply with higher fire resistance specifications. Following kits can The indoor units can be installed in the following range. be used: Always use appropriate indoor units compatible with R410A. ... -
Page 10: Overview Of Unit
Overview of unit 5.2. Main components in the unit For all the models a piping diagram and outlook drawing are available. Depending on the model type some components in the 5.1. Opening the unit main component list may not be existing in the unit. To gain access to the unit, the front plate needs to be opened as Main components: see figure... -
Page 11: Selecting An Installation Location
Selecting an installation location 5.3. Main components in the electrical component box WARNING Be sure to provide for adequate measures in order to prevent that the unit be used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke or fire. -
Page 12: Dimensions And Service Space
Dimensions and service space NOTICE The equipment described in this manual may cause 7.1. Dimensions of the unit electronic noise generated from radio-frequency energy. The equipment complies to specifications that are designed to provide reasonable protection against such interference. However, there is no guarantee that interference will not occur in a particular installation. -
Page 13: Service Space
7.2. Service space When installing, provide the space mentioned below. 1 Patch plates or clothes 2 Belt sling NOTICE Use a belt sling with a width of 20 mm or less that can support the weight of the product. [1] Single outdoor unit installation [2] Multi outdoor unit installation [3] Top view 8.3. -
Page 14: Refrigerant Pipe Size And Allowable Pipe Length
9.3. Selection of piping size Determine the proper size referring to following tables and reference figure (only for indication). 1 Front side 2 Hole for a foundation bolt (Ø17 holes at 4 corners) 3 Avoid foundations that support the unit at 4 corner points. Refrigerant pipe size and allowable pipe length VRV DX indoor unit... -
Page 15: Selection Of Refrigerant Branch Kits
In case of heat pump system (or 2 pipe): 9.4. Selection of refrigerant branch kits For the gas piping size: select the size of suction gas piping. Refrigerant Refnets Example: For piping example, refer to "9.3. Selection of piping size" on Downstream capacity for E=capacity index of unit 1 page Downstream capacity for D=capacity index of unit 1+capacity index... -
Page 16: System Piping (Length) Limitations
9.5. System piping (length) limitations Piping length restrictions Make sure to perform the piping installation within the range of the maximum allowable pipe length, allowable level difference and allowable length after branching as indicated below. Definitions Actual piping length: pipe length between outdoor and indoor units. -
Page 17: System Containing Vrv Dx Indoor Units
9.6. System containing VRV DX indoor units System setup Branch with Refnet joint and Branch with Refnet joint Refnet header Branch with Refnet header Single outdoor unit system REFNET joint (A-G) REFNET joint (A·B) REFNET header REFNET header Unit Unit Unit Indoor units Heat recovery system... -
Page 18: Multi Outdoor Unit System Piping Installation
Maximum allowable length after branch 9.7.2 Possible installation patterns and configurations The piping between the outdoor units must be routed level or The pipe length from the first refrigerant branch kit to the indoor unit slightly upward to avoid the risk of oil retention into the piping. ≤40 m. -
Page 19: Precautions On Refrigerant Piping
10. Precautions on refrigerant piping Flux has an extremely harmful influence on refrigerant piping systems. For instance, if chlorine based flux is used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will Do not allow anything other than the designated refrigerant to ... - Page 20 Precautions when connecting pipes A Heat pump system (2-pipe) B Heat recovery system (3-pipe) See the following table for flare part machining dimensions. 1 Gas side piping (field supply) When connecting the flare nuts, apply refrigerant oil to the inside 2 Accessory pipe and outside of the flares and screw them in by hand three or four 3 Liquid side pipe (field supply)
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Page 21: Guidelines For Handling Stop Valve
1 Install the joints horizontally, so that the caution label (1) 10.3.2 How to use the stop valve attached to the joint comes to the top. Opening the stop valve Do not tilt the joint more than 15° (see view A). Remove the valve cover. -
Page 22: Leak Test And Vacuum Drying
10.4. Leak test and vacuum drying 10.4.3 Installation of refrigerant piping, leak test, vacuuming after electrical installation is done on any indoor or It is very important that all refrigerant piping work is done before the outdoor unit units (outdoor or indoor) are powered on. Apply outdoor unit setting [2-21]=1 (refer to "Refrigerant recovery/ When the units are powered on, the expansion valves will initialize. -
Page 23: Pipe Insulation
Which valves? State of valves INFORMATION State of valves A, B, C and D and Performing the airtightness test and After opening the stop valve, it is possible that the pressure stop valves vacuum drying (Valve A must always in the refrigerant piping does not rise. This might be be closed. -
Page 24: Handling Of The Brazed Plate Heat Exchanger
13. Handling of the brazed plate heat Do not connect the drain outlet to the water outlet. Install the filter in the inlet of the water piping within a distance of exchanger 1.5 m from the outdoor unit. (If sand, waste or rust particles are mixed in the water circulation system, metal materials will become corroded.) CAUTION... -
Page 25: Before Operation Or Starting A Test Run
13.2. Before operation or starting a test run 13.4. Water quality Before starting a test run, please make sure that the piping work INFORMATION has been carried out in a proper manner. Especially, make sure that the filter, air purge valve, automatic water supply valve, and Water quality must be in accordance with EU directive 98/ expansion tank are positioned at their places correctly. -
Page 26: Maintenance Of Plate Heat Exchanger
14. Electrical wiring work 13.5. Maintenance of plate heat exchanger The performance of a plate heat exchanger may decline due to scale accumulation. It may be damaged by freezing due to the decrease in 14.1. Precautions on electrical wiring work the flow rate. -
Page 27: Internal Wiring – Parts Table
H1P~8P ....Pilot lamp (A1P) (service monitor - orange) WARNING [H2P] - prepare, test ... flickering - malfunction detection ... light up The reversed phase protection detector of this product only functions when the product starts up. HAP ....... Pilot lamp (A1P) (service monitor - green) Consequently reversed phase detection is not K1M ....... -
Page 28: System Overview Of Field Wiring
BLK ......Black 14.4. Opening and closing the electrical component box BLU ......Blue BRN......Brown CAUTION GRN .......Green Do not apply excessive force when opening the electrical GRY .......Grey component box cover. Excessive force can deform the ORG .......Orange cover. PNK......Pink RED......Red WHT .......White YLW......Yellow INFORMATION... -
Page 29: Routing And Connection Of Power Supply Wiring And Transmission Wiring
14.6. Routing and connection of power supply wiring Never connect the power supply to transmission wiring terminal block. Otherwise the entire system may break down. and transmission wiring Never connect 400 V to the terminal block of the transmission ... - Page 30 In case of single outdoor unit system In case of multi outdoor unit system A B C F1 F2 F1 F2 Q1 Q2 Q1 Q2 Q1 Q2 F2 Q1 Q2 A B C A B C F1 F2 F1 F2 Q1 Q2 C/H SELECTOR TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2...
- Page 31 NOTICE Precautions when laying power wiring: Do not connect wiring of different thicknesses to the power terminal block (slack in the power wiring may cause abnormal heat). When connecting wiring which is the same thickness, do as shown in the figure below. ...
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Page 32: Making Field Settings
14.6.4 Setting the interlock circuit and pump operation output 14.6.6 Setting the cool/heat operation type Use insulated wires of the size as mentioned below having rated Performing cool/heat setting with the remote controller connected to voltage of 250 V or higher: the indoor unit. -
Page 33: Operating The Push Buttons And Dip Switches On The Logic Board
TEST: C/H SELECT MODE L.N.O.P DEMAND HWL: MASTER SLAVE CAUTION Make sure to re-attach the inspection cover into the electronic component box cover and to close the front MODE RETURN TEST RESET plate's inspection cover after the job is finished. BS1 MODE For changing the set mode BS2 SET For field setting Location of the LED indicators, push buttons and DIP switches:... - Page 34 Access the setting in monitoring mode: Mode 2 Once monitoring mode is selected (push BS1 one time, H1P is Mode 2 is used to set field settings of the outdoor unit and system. blinking), you can select the desired setting. It is done by Changing and access the setting in mode 2: ...
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Page 35: Charging Refrigerant
15.2.2 Operating the DIP switches Please fill in with indelible ink: the factory refrigerant charge of the product, By operating the DIP switches it is possible to the additional refrigerant amount charged in the field and, What to do with DIP switch DS1 +... -
Page 36: Method For Adding Refrigerant
Inch piping size Metric piping NOTICE (Ø) (mm) Weight factor size (Ø) (mm) Weight factor In case of maintenance and the system (outdoor unit+field 22.2 0.37 0.35 piping+indoor units) does not contain any refrigerant any more (e.g., after refrigerant reclaim operation), the unit has When selecting indoor units, the connection ratio (CR) has to be kept to be charged with its original amount of refrigerant (refer within limitations: 50%≤CR≤130%. -
Page 37: Start-Up And Configuration
Power supply voltage Which valves? State of valves Check the power supply voltage on the local supply panel. The Liquid stop valve Open voltage must correspond to the voltage on the identification label Suction gas stop valve Open of the unit. HP/LP stop valve Open Earth wiring... -
Page 38: Mode 2
Mode 1 setting (H1P is OFF) INFORMATION [1-0]= Cool/Heat selection setting (only for heat pump system) The values of the settings which are given below are the decimal values. Cool/Heat selection setting is used in case the optional Cool/Heat selector (KRC19-26A and BRP2A81) is The unit will indicate the binary translation using LEDs. - Page 39 [2-9]= Tc target temperature during heating operation [2-26]= Interlock (open) feedback on user interface Default value=3 This setting is used to define whether you want to receive feedback of the interlock or not. Indication is by displaying a malfunction code on the user interface. On Value top of that, the delay time by when a malfunction code is [2-9]...
- Page 40 [2-32]= Forced, all time, power consumption limitation operation [2-52]= Heating comfort setting (no external control adaptor is required to perform Default value=1 power consumption limitation) If the system always needs to be running under power Value consumption limitation conditions, this setting activates [2-52] Heating comfort and defines the level power consumption limitation that...
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Page 41: Energy Saving And Optimum Operation
17.4. Energy saving and optimum operation To activate this setting under heating operation: change field setting [2-9] to the appropriate value, matching the This VRV IV water cooled system is equipped with advanced energy requirements of the pre-designed system containing a high saving functionality. - Page 42 Mild Overshoot (during heating operation) or undershoot (during cooling operation) is allowed compared to the requested refrigerant temperature, in order to achieve the required room temperature very fast. The overshoot is not allowed from the start up moment. The start up occurs under the condition which is defined by the operation mode above.
- Page 43 Example: Automatic mode during cooling Example: Automatic mode during heating 100% 100% 16°C 49°C 9°C 46°C 43°C 6°C 3°C 38°C 35°C A Actual load curve 2°C B Initial capacity automatic operation mode (fixed T A Default automatic mode peak capacity C Initial T value in automatic operation mode B Load curve...
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Page 44: Test Operation
18. Test operation No matter which control is selected, variations on the behaviour of the system are still possible due to protection controls to keep the unit operating under reliable conditions. The intentional target, After installation and once the field settings are defined, the installer however, is fixed and will be used to obtain the best balance between is obliged to verify correct operation. -
Page 45: Malfunction Code List
18.1.2 Test operation 18.1.3 Correcting after abnormal completion of the test operation The procedure below describes the test operation of the complete system. This operation checks and judges following items: The test operation is only completed if there is no malfunction code displayed on the user interface. -
Page 46: Check Of Normal Operation
Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system. Please consult your Daikin supplier. 1 Direction of the refrigerant flow... -
Page 47: Maintenance And Service
20. Maintenance and service 20.3.2 Refrigerant recovery operation method This should be done by a refrigerant reclaimer. Follow the same procedure as for vacuuming method. 20.1. Maintenance introduction In order to ensure optimal operation of the unit, a number of checks 21. -
Page 48: Operation Manual
(c) MCA must be used to select the correct field wiring size. The MCA can be regarded as the maximum running current. Thank you for purchasing this Daikin VRV IV system. (d) MFA is used to select the circuit breaker and the ground fault circuit interrupter (earth leakage circuit breaker). -
Page 49: Definitions
Indicates an imminently hazardous situation which, if not Equipment which needs to be installed according to instructions in avoided, will result in death or serious injury. this manual, but which are not supplied by Daikin. WARNING Introduction Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. - Page 50 Be sure to use only accessories and spare parts made by Daikin which are specifically designed for Do not touch the heat exchanger fins. These fins are use with the equipment and have them installed by a sharp and could result in cutting injuries.
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Page 51: System Layout
2.2. System layout NOTICE Your VRV IV water-cooled series outdoor unit layout can be one of Never put any objects into the air inlet or outlet. following: Objects touching the fan at high operating speed can be dangerous. Never press the button of the user interface with a ... -
Page 52: User Interface
User interface Press the ON/OFF button on the user interface. The operation lamp lights up and the system starts operating. This operation manual will give a non-exhaustive overview of the INFORMATION main functions of the system. Automatic operation (heat recovery system ONLY). In this Detailed information on required actions to achieve certain functions operation mode, cool/heat changeover is automatically can be found in the dedicated installation and operation manual of... -
Page 53: Program Dry Operation
Stopping the system INFORMATION Press the ON/OFF button of the user interface once again. The The heating capacity drops when the supply water operation lamp goes out and the system stops operating. temperature falls. If this happens, use another heating device together with the unit. -
Page 54: Precautions For Group Control System Or Two User Interface Control System
Energy saving and optimum operation When the system is installed as shown in the figure above, it is necessary to designate one of the user interfaces as the master user interface depending on the setup A, B or C. Observe the following precautions to ensure the system operates Heat pump system: properly. -
Page 55: Maintenance
Hi-sensible Clean air filters and casings of indoor units . Refer to the operation manual supplied with the indoor units for details on The refrigerant temperature is set higher (cooling) compared to how to proceed and make sure to install cleaned air filters back normal operation. -
Page 56: Troubleshooting
Symptom 4: The fan strength does not correspond to the setting Symptom 10: The units can give off odours The fan speed does not change even if the fan speed The unit can absorb the smell of rooms, furniture, cigarettes, ... -
Page 57: After-Sales Service And Warranty
Check that the inlet temperature of the heat source water is WARNING within range. Do not modify, disassemble, remove, reinstall or Check if the water flow of the heat source water is within range. repair the unit yourself as incorrect dismantling or The system operates but cooling or heating is insufficient: installation may cause an electric shock or fire. -
Page 58: Malfunction Codes
Recommended replacement cycle of wear parts Malfunction code Table 2: "Replacement Cycle" list Main code Contents Maintenance cycle Movement detector or floor temperature sensor malfunction Inspection (replacements and/or (indoor) Component cycle repairs) User interface thermistor malfunction (indoor) Air filter 5 years PCB malfunction (outdoor) High efficiency filter 1 year... - Page 59 12. Important information regarding the refrigerant used This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: R410A value: 2087,5 GWP=global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information.
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