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Daikin RYYQ8T7Y1B Installation And Operation Manual

Vrv iv system air conditioner
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INSTALLATION AND
OPERATION MANUAL
VRV IV System Air Conditioner
System Air Conditioner
RYYQ8T7Y1B
RYYQ10T7Y1B
RYYQ12T7Y1B
RYYQ14T7Y1B
RYYQ16T7Y1B
RYYQ18T7Y1B
RYYQ20T7Y1B
RYMQ8T7Y1B
RYMQ10T7Y1B
RYMQ12T7Y1B
RYMQ14T7Y1B
RYMQ16T7Y1B
RYMQ18T7Y1B
RYMQ20T7Y1B
RXYQ8T7Y1B
RXYQ10T7Y1B
RXYQ12T7Y1B
RXYQ14T7Y1B
RXYQ16T7Y1B
RXYQ18T7Y1B
RXYQ20T7Y1B

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Summary of Contents for Daikin RYYQ8T7Y1B

  • Page 1 INSTALLATION AND OPERATION MANUAL VRV IV System Air Conditioner System Air Conditioner RYYQ8T7Y1B RYYQ10T7Y1B RYYQ12T7Y1B RYYQ14T7Y1B RYYQ16T7Y1B RYYQ18T7Y1B RYYQ20T7Y1B RYMQ8T7Y1B RYMQ10T7Y1B RYMQ12T7Y1B RYMQ14T7Y1B RYMQ16T7Y1B RYMQ18T7Y1B RYMQ20T7Y1B RXYQ8T7Y1B RXYQ10T7Y1B RXYQ12T7Y1B RXYQ14T7Y1B RXYQ16T7Y1B RXYQ18T7Y1B RXYQ20T7Y1B...
  • Page 2 (S1NPL) (S1NPH) (S1NPL) (S1NPH) (S1PH) (S1PH) (S2PH) R21T R22T R21T 10-12HP 10-12HP...
  • Page 3 (Y1E) (S1NPH) (S1NPL) (S1NPL) (S1NPH) (S1PH) (S1PH) (S2PH) R21T R21T R22T 10-12HP 10-12HP...
  • Page 4 2P329110-1...
  • Page 5 2P329110-1...

  • Page 6: Table Of Contents

    5.1. Opening the unit................6 5.2. Main components in the unit ............6 Thank you for purchasing this Daikin VRV IV system. 5.3. Main components in the electrical component box ......7 6. Selecting an installation location ..........7 The original instructions are written in English. All other languages 6.1.

  • Page 7: General Safety Precautions

    Field supply: Introduction Equipment which needs to be installed according to instructions in this manual, but which are not supplied by Daikin. 3.1. General information This installation manual concerns the VRV IV, full inverter driven, heat pump system.

  • Page 8: Combination And Options

    These units have (in single use) heating capacities ranging from 25 to 3.2.2. Outdoor unit combinations 63 kW and cooling capacities rating from 22.4 to 56 kW. In multi Single unit (stand alone outdoor unit) can be chosen from two ...

  • Page 9: Model Identification

    The Refrigerant R410A software for the user interface program can be downloaded from Capacity index the Daikin extranet. VRV IV series INFORMATION Power supply: 3N~, 380-415 V, 50 Hz Refer to the technical engineering data for the latest option European Market names.
  • Page 10 8 HP 10 HP 12 HP 20 HP Accessory pipes Accessory pipes (mm) (mm) Gas pipe Gas pipe Front connection Front connection ID Øa ID Øa 19.1 25.4 22.2 25.4 28.6 25.4 28.6 ID Øb ID Øb Bottom connection Bottom connection ID Øa ID Øa 19.1...

  • Page 11: 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, front plates need to be opened as follows: Main components (see figure...

  • Page 12: Selecting An Installation Location

    5.3. Main components in the electrical component box CAUTION Appliance not accessible to the general public, install it in a R(X/Y)(Y/M)Q8~12 secured area, protected from easy access. This unit, both indoor and outdoor, is suitable for installation commercial light industrial environment.

  • Page 13: Selecting A Location In Cold Climates

    6.3. Selecting a location in cold climates NOTICE The equipment described in this manual may cause NOTICE electronic noise generated from radio-frequency energy. When operating the unit in a low outdoor ambient The equipment complies to specifications that are temperature, be sure to follow the instructions described designed to provide reasonable protection against such below.

  • Page 14: Dimensions And Service Space

    Dimensions and service space 7.2. Service space The space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available (refer to the figure below 7.1. Dimensions of outdoor unit and choose one of the possibilities). R(X/Y)(Y/M)Q8~12 4-15x22.5 (mm)

  • Page 15: The Unit

    The installation space required on these drawings are for full 8.3. Unpacking  load heating operation without considering possible ice accumulation. CAUTION If the location of the installation is in a cold climate, then all dimensions above should be >500 mm to avoid accumulation of To avoid injury, do not touch the air inlet or aluminium fins ice in between the outdoor units.

  • Page 16: Pipe Length

    Refrigerant pipe size and allowable pipe length 1300 1162 9.1. General information NOTICE The refrigerant R410A requires strict cautions for keeping the system clean, dry and tight. Clean and dry: foreign materials (including mineral  oils or moisture) should be prevented from getting (mm) mixed into the system.
  • Page 17 9.3.1. Piping between outdoor unit and (first) refrigerant 9.3.5. Piping between refrigerant branch kit and indoor unit: E branch kit: A, B, C Pipe size for direct connection to indoor unit must be the same as the Choose from the following table in accordance with the outdoor unit connection size of the indoor unit (in case indoor unit is VRV DX total capacity type, connected downstream.

  • Page 18: Selection Of Refrigerant Branch Kits

    9.4. Selection of refrigerant branch kits Deciding the equalizing pipe diameter: In case of 3 multi units: the connection diameter of outdoor to  Refrigerant refnets T-joint has to be kept. For piping example, refer to "9.3. Selection of piping size" on In case of 2 multi units: the connection pipe has to have the ...
  • Page 19 9.5.2. System only containing VRV DX indoor units System setup Branch with refnet joint and refnet Branch with refnet joint header Branch with refnet header Single outdoor Example 1.2 Example 1.3 Example 1.1 Multi outdoor Indoor unit Refnet joint Refnet header Outdoor multi Example 2.1 connection piping...
  • Page 20 When the piping size is increased (step b), the piping length has 9.5.4. System containing VRV DX indoor units and RA DX to be counted as double (except for the main pipe and the pipes indoor units that are not increased in pipe size). System setup The total piping length has to be within limitations (see table above).

  • Page 21: Multi System Piping Installation

    To avoid the risk of oil retention to the outmost outdoor unit,  always connect the stop valve and the piping between outdoor units as shown in the 4 correct possibilities of the figure below. 1 To indoor units 2 Outdoor unit multi connecting piping kit (first branch) 3 Outdoor unit multi connecting piping kit (second branch) Prohibited patterns: change to pattern 1 or 2.

  • Page 22: Precautions On Refrigerant Piping

    10. Precautions on refrigerant piping Do not use anti-oxidants when brazing the pipe joints. Residue can clog pipes and break equipment: Do not allow anything other than the designated refrigerant to Do not use flux when brazing copper-to-copper refrigerant  ...
  • Page 23 Use the following procedure to remove the pinched piping: For equalizing gas and gas stop valves, cut off the lower part of the smaller pinched piping with an appropriate tool (e.g., pipe Remove the valve cover and make sure that the stop valves are cutter, a pair of nippers, …).

  • Page 24: Guidelines For Handling Stop Valve

    10.2.4. Branching the refrigerant piping 10.3. Guidelines for handling stop valve For installation of the refrigerant branching kit, refer to the  10.3.1. Cautions on handling the stop valve installation manual delivered with the kit. Make sure to keep both stop valves open during operation. ...

  • Page 25: Leak Test And Vacuum Drying

    10.3.3. Cautions on handling the stop valve cover 10.4.1. General guidelines The stop valve cover is sealed where indicated by the arrow. Use a 2-stage vacuum pump with a non-return valve which can   Take care not to damage it. evacuate to a gauge pressure of –100.7 kPa (5 Torr absolute, –755 mm Hg).

  • Page 26: Pipe Insulation

    10.4.4. Setup NOTICE Make sure to use a recommended bubble test solution from your wholesaler. Do not use soap water, which may cause cracking of flare nuts (soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold), and/or lead to corrosion of flared joints (soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare.

  • Page 27: Electrical Wiring Work

    WARNING  When installing the earth leakage protector be sure that it is compatible with the inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector. As this unit is equipped with an inverter, installing a ...
  • Page 28 R21T, R22T ....Thermistor (discharge) (M1C, M2C, discharge) Minimum S R3T......Thermistor (accumulator) (Ω) value (kVA) R4T......Thermistor (heat exc. liq. pipe) RYYQ/RXYQ-30 — 1488 R5T......Thermistor (subcool liq. pipe) RYYQ/RXYQ-32 — 1848 R6T......Thermistor (heat exc. gas pipe) RYYQ/RXYQ-34 — 1797 R7T......Thermistor (heat exc.de-icer) RYYQ/RXYQ-36 —...

  • Page 29: System Overview Of Field Wiring

    12.3. System overview of field wiring 12.5. Requirements Field wiring consists of power supply (always including earth) and The power supply must be protected with the required safety devices, indoor-outdoor communication (= transmission) wiring. i.e. a main switch, a slow blow fuse on each phase and an earth leakage protector in accordance with the applicable legislation.
  • Page 30  Up to 16 branches are possible for unit-to-unit cabling. No NOTICE branching is allowed after branching (see figure below). The above table indicates power specifications for standard combinations. If using anything other than the above combinations in a multiple outdoor unit system, calculate using the following procedure.
  • Page 31 Transmission wiring routing to the unit and inside the unit. R(X/Y)(Y/M)Q14~20 Transmission wiring can be routed through the front side only: Fix transmission wire with tie wrap to low voltage wiring. See  figures below, item 6. Fix transmission wire with tie wrap to heat exchanger fixing plate ...
  • Page 32 Front side. In order to route the power supply from the front side,  R(X/Y)(Y/M)Q14~20 the available knockout holes (C) can be used:  Fix the power supply cable to the foreseen wire clips with a tie wrap. See figures below, item 2. ...
  • Page 33 12.7. Connection 12.7.2. Connection of wiring to terminals Transmission wiring in outdoor unit This chapter gives an explanation how to route and connect the wiring within the unit. 12.7.1. Connection of transmission wiring to the system In case of single outdoor unit installation F2 Q1 Q2 TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2...

  • Page 34: Making Field Settings

    Connecting the power supply to multiple outdoor units 7 Earth wire (GRN/YLW) 8 Clamp the power supply to the plastic bracket using a field To connect the power supply for multiple outdoor units to each other, supplied clamp to prevent external force being applied to the terminal.
  • Page 35 Location of the segment displays, buttons and DIP switches: When above situation cannot be confirmed after 12 min, the malfunction code can be checked on the indoor unit user interface and the outdoor unit segment display. Solve the malfunction code accordingly.

  • Page 36: Charging Refrigerant

    Mode 2 13.3. Connecting the PC configurator to the outdoor unit Mode 2 is used to set field settings of the outdoor unit and system. Changing and access the setting in mode 2:  Connection of the optional PC configurator cable to the outdoor unit Once mode 2 is selected (push BS1 for more than 5 seconds), has to be done on A1P.

  • Page 37: Calculating The Additional Refrigerant Charge

    14.2. Important information regarding the refrigerant 14.3.1. How to calculate the additional refrigerant to be charged used Additional refrigerant to be charged=R (kg). R should be rounded off in units of 0.1 kg. This product contains fluorinated greenhouse gases covered by the Kyoto Protocol.

  • Page 38: Method For Adding Refrigerant

    14.4. Method for adding refrigerant 14.4.1. Flow chart Step 1 • Calculate additional refrigerant charge amount: R (kg) (see "14.3. Calculating the additional refrigerant charge" on page Step 4a • Close valve C Step 2+3 R<Q Refrigerant overcharge happened • Charging is finished •...
  • Page 39 << Continuation of previous page << Continuation of previous page Heating charging Cooling charging ("t22" startup control) ("t02" startup control) ("t23" waiting for stable heating) ("t03" waiting for stable cooling) "t23" is flashing "t03" is flashing • Push BS2 within 5 minutes •...
  • Page 40 A flow chart is available which gives an overview of the possibilities CAUTION and actions to be taken (see "14.4.1. Flow chart" on page 33). When charging a system, charging over the  To speed up the process of pre-charging refrigerant for large permissible quantity can cause liquid hammer.
  • Page 41 Heating (middle segment indicates "2") INFORMATION Charging will continue, the segment indication intermittently shows the current low pressure value and the status indication For a multi outdoor unit system, it is not required to "t23". connect all charge ports to a refrigerant tank. When the remaining additional refrigerant amount is charged, The refrigerant will be charged with ±22 kg in 1 hour time close valve A immediately and push BS3 to stop charging...

  • Page 42: Start-Up And Configuration

    Perform the test procedure as described in "15.5. Test operation" on 14.4.3. Checks after adding refrigerant page Are the stop valves for liquid and gas open?  Adding refrigerant by using the manual charging function Is the amount of refrigerant, that has been added, recorded on ...

  • Page 43: Monitoring Function And Field Settings

    Refrigerant leak [1-1]= shows the status of low noise operation Check the inside of the unit on refrigerant leakage. If there is a 1=unit is currently operating under low noise  refrigerant leak, try to repair the leak. If the repair is restrictions unsuccessful, call your local dealer.
  • Page 44 15.2.2. Mode 2 [1-19]= shows the 3rd last malfunction code. Mode 2 is used to change the field settings of the system. Consulting When the latest malfunction codes were reset by the current field setting value and changing the current field setting accident on an indoor unit user interface, they can be value is possible.
  • Page 45 Change [2-9]=0, 1, 3 or 6 in function of required [2-20]= Manual additional refrigerant charge operation method during heating. In order to add the additional refrigerant charge amount For more information and advice about the impact of in a manual way (without automatic refrigerant charging these settings, see "15.4.
  • Page 46 [2-81]= Cooling comfort setting. Value Stop time automatic low noise Default value=1 [2-27] operation (approximately) 6h00 Value 7h00 [2-81] Cooling comfort setting 8h00 (default) Mild (default) This setting is used in conjunction with setting [2-22]. Quick [2-30]= Power consumption limitation level (step 1) via the Powerful external control adaptor (DTA104A61/62).

  • Page 47: Leak Detection Function

    [2-86]= Automatic leak detection activation INFORMATION When you want to use the automatic leak detection  The weighed and already recorded amount of function you have to activate this setting. By activating additional refrigerant charge (not the total amount of setting [2-86], the automatic leak detection will be refrigerant present in the system) must be entered.
  • Page 48  To activate this operation method under cooling operation:  Quick change field setting [2-8]=0 (default). Overshoot (during heating operation) or undershoot (during E.g., when your system is operating in heating, you do not need cooling operation) is allowed compared to the requested as much heating under high outdoor ambient temperatures (e.g., refrigerant temperature, in order to achieve the required room 20°C) as under low outdoor ambient temperatures (e.g., –5°C).

  • Page 49: Test Operation

    15.5. Test operation 15.5.2. Test operation The procedure below describes the test operation of the complete After installation and once the field settings are defined, the installer system. This operation checks and judges following items: is obliged to verify correct operation. Therefore a test run must be performed according to the procedures described below.

  • Page 50: Malfunction Code List

    15.5.3. Correcting after abnormal completion of the test NOTICE operation Be sure to turn on the power 6 hours before operation in The test operation is only completed if there is no malfunction code order to have power running to the crankcase heater and displayed on the user interface or outdoor unit segment display.
  • Page 51 Malfunction code Main Sub code code Master/slave 1/slave 2 Contents Solution 16/22/28 Discharge temperature sensor malfunction (R21T): open Check connection on PCB or actuator circuit - A1P (X29A) 17/23/29 Discharge temperature sensor malfunction (R21T): short Check connection on PCB or actuator circuit - A1P (X29A) 18/24/30 Discharge temperature sensor malfunction (R22T): open...

  • Page 52: Operation Of The Unit

    Malfunction code Main Sub code code Master/slave 1/slave 2 Contents Solution Auto address malfunction (inconsistency) Check if transmission wired unit amount matches with powered unit amount (by monitor mode) or wait till initialisation is finished. Stop valve closed or wrong (during system test run) Open stop valves INFORMATION References can be found on the wiring diagram.

  • Page 53: Maintenance And Service

    17. Maintenance and service NOTICE Play it safe. For protection of the PCB, touch the switch 17.1. Maintenance introduction box casing by hand in order to eliminate static electricity from your body before performing service. In order to ensure optimal operation of the unit, a number of checks and inspections should be carried out on the unit at regular intervals, 17.3.

  • Page 54: Disposal Requirements

    18.2. Maximum concentration level The maximum charge of refrigerant and the calculation of the maximum concentration of refrigerant is directly related to the humanly occupied space in to which it could leak. The unit of measurement of the concentration is kg/m (the weight in kg of the refrigerant gas in 1 m volume of the occupied space).

  • Page 55: Unit Specifications

    20. Unit specifications (e) Sound values are measured in a semi-anechoic room. Sound power level is an absolute value that a sound generates. (g) Sound pressure level is a relative value depending on the distance and acoustic environment. For more details, refer to sound level drawings in the technical data book.

  • Page 56: Electrical Specifications

    20.2. Electrical specifications RXYQ8T RXYQ10T RXYQ12T RXYQ14T RYYQ8T RYYQ10T RYYQ12T RYYQ14T RYMQ8T RYMQ10T RYMQ12T RYMQ14T Power supply • name • phase • frequency (Hz) • Voltage 380-415 Current • nominal running 10.2 12.7 15.4 current (RLA) • starting current ≤MCA (MSC) •...

  • Page 57: Definitions

    61 Electric current. 11.4. Malfunction codes ................ 62 Thank you for purchasing this Daikin VRV IV system. Danger of burning and scalding. The original instructions are written in English. All other languages are translations of the original instructions.

  • Page 58: Introduction

    Equipment which needs to be installed according to instructions in such animals can cause malfunctions, smoke or fire this manual, but which are not supplied by Daikin. when making contact with electrical parts. Ask your dealer for improvement, repair, and ...
  • Page 59 WARNING NOTICE  Do not install the air conditioner at any place where  Never put any objects into the air inlet or outlet. flammable gas may leak out. If the gas leaks out and Objects touching the fan at high operating speed can stays around the air conditioner, a fire may break out.

  • Page 60: System Layout

    Operation range 2.2. System layout Your VRV IV heat pump series outdoor unit can be one of following Use the system in the following temperature and humidity ranges for models: safe and effective operation.  RYYQ: Single continuous heating model. RYMQ: Multi continuous heating model.

  • Page 61: Program Dry Operation

    Operating the changeover remote control switch INFORMATION Select operation mode with the cool/heat changeover switch as The heating capacity drops when the outside follows:  temperature falls. If this happens, use another heating Cooling operation Heating operation Fan only operation device together with the unit.

  • Page 62: Adjusting The Air Flow Direction

    Stopping the system 6.4. Setting the master user interface Press the ON/OFF button of the user interface once again. The operation lamp goes off and the system stops operating. NOTICE Do not turn off power immediately after the unit stops, but wait for at least 5 minutes.

  • Page 63: Precautions For Group Control System Or Two User Interface Control System

    Procedure: stop all indoor units (VRV DX indoor+RA DX indoor Your system is equipped with advanced energy saving functionality. units). Depending on the priority emphasises can be put on energy saving or comfort level. Several parameters can be selected, resulting in the When the system is not operating (all indoor units thermo OFF), you optimal balance between energy consumption and comfort for your can define the master RA DX indoor unit by addressing that unit with...

  • Page 64: Maintenance

    Maintenance Symptom 3: Fan operation is possible, but cooling and heating do not work Immediately after the power is turned on. The micro computer is  CAUTION getting ready to operate and is performing a communication check with all indoor units. Please wait 12 minutes (max.) till this Pay attention to the fan.

  • Page 65: Troubleshooting

    10. Troubleshooting Symptom 8.2: Indoor unit, outdoor unit A continuous low hissing sound is heard when the system is in  cooling or defrost operation. This is the sound of refrigerant gas If one of the following malfunctions occur, take the measures shown flowing through both indoor and outdoor units.

  • Page 66: After-Sales Service And Warranty

    11. After-sales service and warranty NOTICE Table 1 indicates main components. Refer to your 11.1. Warranty period maintenance and inspection contract for more details. Table 1 indicates recommended intervals This product includes a warranty card that was filled in by the ...

  • Page 67: Malfunction Codes

    11.4. Malfunction codes Malfunction code In case a malfunction code appears on the indoor unit user interface Main code Contents display, contact your installer and inform the malfunction code, the Transmission outdoor unit - inverter: INV transmission unit type, and serial number (you can find this information on the trouble nameplate of the unit).
  • Page 71 (S1NPH) (S1NPL) (S1NPL) (S1NPH) (S1PH) (S2PH) (S1PH) R22T R21T R21T 10-12HP 10-12HP...
  • Page 72 *4P329765-1 0000000U* 4P329765-1 2012.09...

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