Panasonic WH-SDC12H9E8 Service Manual
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Panasonic WH-SDC12H9E8 Service Manual

Air-to-water heatpump
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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be
replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission
of manufacturer.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
Indoor Unit
WH-SDC09H3E8
WH-SDC12H9E8
WH-SDC16H9E8
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
Outdoor Unit
WH-UD09HE8
WH-UD12HE8
WH-UD16HE8
Destination
Europe
in the Schematic
© Panasonic Corporation 2016.

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Summary of Contents for Panasonic WH-SDC12H9E8

  • Page 1 Do not modify the original design without permission of manufacturer. PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2016.

  • Page 2: Safety Precautions

    Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before installation.  Electrical work must be installed by a licensed electrician. Be sure to use the correct rating and main circuit for the model to be installed.  The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.
  • Page 3 WARNING Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done, the set will drop and cause injury. This equipment is strongly recommended to be installed with Residual Current Device (RCD) on-site according to the respective national wiring rules or country–specific safety measures in terms of residual current.
  • Page 4 CAUTION Power supply connection to Indoor Unit.  Power supply point should be in easily accessible place for power disconnection in case of emergency.  Must follow local national wiring standard, regulation and this installation instruction.  Strongly recommended to make permanent connection to a circuit breaker. Power supply 1: Use approved 20A 4-poles circuit breaker with a minimum contact gap of 3.0 mm.
  • Page 5 WH-SDC12H9E8 WH-UD12HE8 Item Unit Outdoor Unit Performance Test Condition EN 14511 Condition A35W7 (Ambient/Water) 10.00 Cooling Capacity BTU/h 34100 kcal/h 8600 2.85 Cooling EER kcal/hW 2.45 Condition A7W35 A2W35 (Ambient/Water) 12.00 11.40 Heating Capacity BTU/h 41000 38900 kcal/h 10320 9800 4.74...
  • Page 6 Item Unit Outdoor Unit Type Hermetic Motor Compressor Motor Type Brushless (4-poles) Rated Output 4.50 Type Propeller Fan Material Motor Type DC (8-poles) Input Power — Output Power Cooling: 600 (Top), 640 (Bottom) Fan Speed Heating: 510 (Top), 550 (Bottom) Fin material Aluminium (Pre Coat) Fin Type...
  • Page 7 Item Unit Indoor Unit Performance Test Condition EN 14511 Cooling: 16 ~ 43 Outdoor Ambient °C Heating: -20 ~ 35 Operation Range Cooling: 5 ~ 20 Water Outlet °C Heating: 20 ~ 55 Cooling: 36 Internal Pressure Differential Heating: 52 Condition A35W7 A7W35...
  • Page 8 Features  Inverter Technology - Energy saving  High Efficiency  Environment Protection - Non-ozone depletion substances refrigerant (R410A)  Long Installation Piping - Long piping up to 30 meter with height difference 20 meter - Flexible 4-way piping for outdoor unit ...

  • Page 9: Main Components

    Main Components Cabinet front plate Cabinet side plate (2 pieces) Remote controller 3 Phase RCCB/ELCB (Main Power) Single Phase RCCB/ELCB (Booster Heater) for S*C09*3E8 3 Phase RCCB/ELCB for S*C12*9 E8, S*C16*9E8 Control board cover Control board Flow sensor Air purge valve Backup heater Overload protector (4 pieces) Expansion vessel...

  • Page 10: Outdoor Unit

    Outdoor Unit Air inlet (rear) Air inlet (side) Air outlet...

  • Page 11: Indoor Unit

    Dimensions Indoor Unit <Top View> <Front View> <Side View> 58.9 141.9 326.9 <Bottom View> 424.5 404.1 54.6 69.5 437.3 Relative position between the indoor unit and the installation plate <Front View> More than 375 More than 375 Wall Wall Installation plate Indoor Unit body...
  • Page 12 Outdoor Unit <Top View> <Side view> <Front View> <Side View> 318.5 <Back view> Unit: mm...

  • Page 13: Refrigeration And Water Cycle Diagram

    Refrigeration and Water Cycle Diagram Outdoor Indoor Side Side Water Pressure Gauge Expansion Liquid Vessel Water Side Capillary Flow Expansion (3-Way Tube Switch Valve Strainer Strainer Valve) Water Inlet (Connect Water Refrigerant Pump Sanitary Temp. Tank) Sensor Water Inlet Defrost Temp.
  • Page 14 WH-SDC12H9E8 WH-SDC16H9E8 EXTERNAL COMP. SW HEAT/COOL SWITCH SIGNAL SOLAR TEMP. SENSOR DEMAND SIGNAL WATER TEMP. ZONE 1 WATER TEMP. ZONE 2 POOL TEMP. SENSOR BUFFERTANK SENSOR ROOM TEMP. ZONE 1 ROOM TEMP. ZONE 2...
  • Page 15 Outdoor Unit...

  • Page 16: Installation Instruction

    Installation Instruction The centre of installation plate should be at more than Indoor Unit 375 mm at right and left of the wall. The distance from installation plate edge to ground should more than 1556 mm. Select the Best Location ...

  • Page 17: Water Piping Installation

     2. Gently pull the lower section of the front plate This water circuit must comply with all relevant towards you to remove the front plate from left and European and national regulations, i.e. IEC/EN right hooks. 61770. 3. Hold the left edge and right edge of front plate to ...

  • Page 18: Drain Elbow And Hose Installation

     If necessary, use hose clamp to further tighten the hose at drain hose connector to prevent leakage. Spanner or  Water will drip from this hose, therefore the outlet Wrench Torque wrench of this hose must be installed in an area where the outlet cannot become blocked.
  • Page 19 For model S*C09*3E8 Main Power Supply Terminal on the outdoor unit or Main + Backup Booster Heater Colour of wires (Connecting cables) Heater Power Supply Power Supply Terminal on the indoor unit (Power Supply Cord) Indoor unit/Outdoor unit Terminals on the isolating device connection from power supply (Disconnecting means)

  • Page 20: Installation Location

    11.1.5.4 Connecting Requirement 11.1.6.2 Remote Controller Wiring For S*C09*3E8 Indoor unit  The equipment’s Power Supply 1 complies with IEC/EN 61000-3-2.  The equipment’s Power Supply 1 complies with Remote Controller IEC/EN 61000-3-3 and can be connected to current supply network. ...
  • Page 21 11.1.6.4 Mounting The Remote 11.1.6.5 Replace The Remote Controller Controller Cover For exposed type  Replace the existing Remote controller cover with Preparation: Make 2 holes for screws using a driver. Remote controller cover to close the hole left after remove the Remote controller. 1.
  • Page 22  Contact authorized dealer if the RCCB/ELCB 2. Set the Pressure Relief Valve level “DOWN”. malfunction.  Pressure relief Turn off the power supply to the Indoor Unit. valve  If RCCB/ELCB functions normal, set the lever to “ON” again after testing finish. Lever This product contains fluorinated greenhouse gasses.
  • Page 23 Tank Sensor Resistant Vs Temperature How To Fix Cable 16000 14000 12000 Connecting with external 10000 device (optional) 8000 6000  All connections shall follow to the local national 4000 wiring standard. 2000  It is strongly recommended to use manufacturer- recommended parts and accessories for -30 -20 -10 installation.
  • Page 24  For connection to optional PCB Bind all optional cables Optional 1. By connecting optional PCB, 2 Zone temperature with these bands control can be achieved. Please connect mixing valves, water pumps and thermistors in zone 1 Bind optional and zone 2 to each terminals in optional PCB. cables with these bands Temperature of each zone can be controlled...
  • Page 25 Tank sensor AW-A2W-TSOD (Total cable length Room sensor Outdoor air sensor shall be 30m or less) Outdoor air sensor Tank sensor Please use Panasonic specified part Tank OLP Buffer tank sensor Connection of Optional PCB Pool water sensor (CZ-NS4P) Solar sensor...
  • Page 26 Use for measurement of the solar panel  This section explains about the external devices temperature. (optional) recommended by Panasonic. Please Insert the sensor into the sensor pocket and paste always ensure to use the correct external device it on the solar panel surface.

  • Page 27: Installation

     For optional pump. Power supply: AC230V/50Hz, <500W CN-CNT cable Recommended part: Yonos 25/6: made by Wilo For S*C09*3E8  For optional mixing valve. Power supply: AC230V/50Hz (input open/output close) For S*C12/16*9E8 Operating time: 30s~120s With Optional PCB Recommended part: 167032: made by Caleffi 2.
  • Page 28 5. Use the included cord clamp to fix the CN-CNT cable to the wall. Pull the cable around as shown in the diagram so that external forces cannot act on the connector in the adaptor. Furthermore, on the Indoor Unit end, use the included cable tie to fix the cables together.
  • Page 29 Outdoor Unit Select the Best Location  If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.  Avoid installations in areas where the ambient temperature may drop below -20˚C for UD models and -28˚C for UX models.

  • Page 30: Installation Diagram

    11.5.2 Install The Outdoor Unit 11.5.2.1 Installation Diagram  It is advisable to avoid more than 2 blockage directions. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist.  This illustration is for explanation purposes only. Vinyl tape (Wide) Saddle Indoor/Outdoor connecting cable - For UX09*E5*, UX12*E5*, UD12*E5*, UD16*E5* use 4-CORE WIRE...

  • Page 31: Connecting The Piping

    Service panel Connecting The Piping CAUTION Do not over tighten, over tightening cause gas leakage. Piping size (Torque) Model Liquid Rear direction UX09*E5*, UX12*E5*, UD12*E5*, UD16*E5*, ø15.88 mm (5/8") Ø9.52 mm (3/8") UX09*E8*, UX12*E8*, Rear pipe panel [65 N•m] [42 N•m] UX16*E8*, UD09*E8*, UD12*E8*, UD16*E8* Side panel...
  • Page 32 Evacuation Of The Equipment WHEN INSTALLING AN AIR-TO-WATER HEAT PUMP, BE SURE TO EVACUATE THE AIR INSIDE THE UNIT AND PIPES in the following procedure. Liquid side Indoor unit Outdoor unit Two-way valve Close Gas side Three-way valve Vacuum pump Close adaptor Vacuum...
  • Page 33 8. Next, insert a small amount of same refrigerant into the system through the centre hose, until the pressure reaches about 1MPa (10 BarG). (Low/Gas) pressure gauge (High/Liquid) pressure gauge R-### An example illustrations of setup for refrigerant leak detection. Step 2: Refrigerant leak detection through Electronic halogen leak detector and/or ultrasonic leak detector: 1.

  • Page 34: Connect The Cable To The Outdoor Unit

    Connect The Cable To The Outdoor Unit (FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT) 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed flexible cable (see below table), type designation 60245 IEC 57 or heavier cable.

  • Page 35: Pipe Insulation

    WIRE STRIPPING AND CONNECTING REQUIREMENT Wire stripping Conductor not Conductor over Conductor fully Indoor/outdoor fully insert insert insert connecting terminal board 5 mm or more (gap between wires) ACCEPT PROHIBITED PROHIBITED No loose strand when insert Pipe Insulation 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
  • Page 36 However, the following sequences do not follow maximum pump duty setting by remote control. Pump down mode Air purge mode Normal deice 1) P-Q graph for different pump HEX duty WH-SDC09H3E8 & WH-SDC12H9E8 (P - Q) Max Duty C5 12kW Rated Duty 8B Min Duty 50...
  • Page 37 WH-SDC12H9E8 WH-UD12HE8 Heating Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping length : 7 m 13.000 12.000 11.000 10.000 9.000 8.000...
  • Page 38 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7 m 12.500 11.500 10.500 9.500 8.500 7.500 Outdoor Temperature (°C) 5.500 4.500 3.500...
  • Page 39 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 19°C Indoor water outlet temperature : 14°C Piping length : 7 m 16.000 15.000 14.000 13.000 12.000 11.000 Outdoor Temperature (°C) 5.500 4.500 3.500...
  • Page 40 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 23°C Indoor water outlet temperature : 18°C Piping length : 7 m 12.000 11.000 10.000 9.000 8.000 7.000 Outdoor Temperature (°C) 5.500 4.500 3.500...
  • Page 41 Heating Characteristics at Different Piping Length Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping length : 7 m 12.500 12.000 11.500 11.000 10.500 10.000 Piping Length (m) 4.000 3.500 3.000...
  • Page 42 Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7 m 11.000 10.000 9.000 8.000 7.000 6.000 Piping Length (m) 3.800 3.700 3.600...

  • Page 43: Heating Capacity Table

    2460 9000 2760 9000 3060 9000 1050 9000 1240 8730 1440 8460 1640 8280 1820 8100 2000 WH-SDC12H9E8 WH-UD12HE8 Water Out (°C) Input Input Input Input Input Input Capacity Capacity Capacity Capacity Capacity Capacity Outdoor Air (°C) Power Power Power...

  • Page 44: Cooling Capacity Table

    7000 2230 8300 2320 7000 1520 5520 2540 7690 2770 5600 1800 WH-SDC12H9E8 WH-UD12HE8 Water In (°C) Water Out (°C) Outdoor Air (°C) Capacity (W) Input Power (W) Capacity (W) Input Power (W) Capacity (W) Input Power (W) 7860 1180...

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