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Panasonic WH-SDC12H6E5 Service Manual
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Panasonic WH-SDC12H6E5 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-SDC12H6E5
WH-SDC16H6E5
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
Outdoor Unit
WH-UD12HE5
WH-UD16HE5
Destination
Europe
Turkey
in the Schematic
© Panasonic Corporation 2017.

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Summary of Contents for Panasonic WH-SDC12H6E5

  • 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 2017.

  • 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 30A 2-poles circuit breaker with a minimum contact gap of 3.0 mm.

  • Page 5: Specifications

    Specifications WH-SDC12H6E5 WH-UD12HE5 Item Unit Outdoor Unit Performance Test Condition EN 14511 Condition A35W7 (Ambient/Water) 10.00 Cooling Capacity BTU/h 34100 kcal/h 8600 2.81 Cooling EER kcal/hW 2.42 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 Refrigeration Charge Less m (ft) 10 (32.8) Type Hermetic Motor Compressor Motor Type Brushless (4-poles) Rated Output 3.00 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...
  • 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: 51 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: Indoor Unit

    Dimensions Indoor Unit <Top View> <Front View> <Side View> 58.9 141.9 326.9 <Bottom View> 326.5 141.5 58.5 . 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 ≥1556 from...

  • Page 10: Outdoor Unit

    Outdoor Unit <Top View> <Side view> <Front View> <Side View> 318.5 <Back view> Unit: mm...

  • Page 11: Refrigeration And Water Cycle Diagram

    Refrigeration and Water Cycle Diagram Outdoor Indoor Side Side Water Pressure Gauge Expansion Liquid Vessel Water Capillary Side Flow Expansion Tube (3-Way Switch Valve Strainer Strainer Valve) Water Inlet (Connect Water Refrigerant Pump Sanitary Temp Tank) Sensor Water Inlet Defrost Temp.

  • Page 12: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit EXTERNAL COMP. SW HEAT/COOL SWITCH SG SIGNAL SOLAR TEMP. SENSOR DEMAND SIGNAL WATER TEMP. ZONE 1 WATER TEMP. ZONE 2 POOL TEMP. SENSOR BUFFER TANK SENSOR ROOM TEMP. ZONE 1 ROOM TEMP. ZONE 2...
  • Page 13 Outdoor Unit...

  • Page 14: 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 15: 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 16  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 17 57 or heavier cord to the terminal board, and Connecting Requirement to the other end of the cord to isolating device (Disconnecting means). See below table for WH-SDC12H6E5, WH-SDC16H6E5 cable size requirement.  The equipment's power supply 1 complies with...

  • Page 18: Installation Location

    11.1.6 Installation Of Remote Controller 2. Remove the wiring between Remote controller and Indoor Unit terminal. Remove the bottom case As Room Thermostat from the Control board cover by loosening the  Remote Controller mounted to the Indoor Unit screws. (3 pieces) can be moved to the room and serve as Room Thermostat.
  • Page 19 11.1.7 Charging The Water Mount the bottom case to the wall. Mount the top case.  • Make sure all the piping installations are properly • Pass the wire through the hole Align the claws of the top in the centre of the bottom case. case and then align the claws done before carry out below steps.
  • Page 20 Expansion Vessel Check RCCB/ELCB Pressure Checking Ensure the RCCB/ELCB set to “ON” condition before check RCCB/ ELCB. [Lower limit water volume of the system] Turn on the power supply to the Indoor Unit. Please ensure the capacity of the circulating water of This testing could only be done when power is the total system including the capacity of the indoor supplied to the Indoor Unit.
  • Page 21 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 22  For connection to optional PCB Bind all Optional 1. By connecting optional PCB, 2 Zone temperature optional cables PCB 7 with these control can be achieved. Please connect mixing bands valves, water pumps and thermistors in zone 1 and zone 2 to each terminals in optional PCB. Bind optional Temperature of each zone can be controlled cables with...
  • Page 23 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 24 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 25: Installation

     For optional pump. Power supply: AC230V/50Hz, <500W CN-CNT cable Recommended part: Yonos 25/6: made by Wilo  For optional mixing valve. Power supply: AC230V/50Hz (input open/output close) Operating time: 30s~120s With Optional PCB Recommended part: 167032: made by Caleffi 2.
  • Page 26 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 27 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 28: 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 29: 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 30 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 31 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 32: 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 33: 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 34 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-SDC12H6E5 (P - Q) Max Duty C5 12kW Rated Duty 8B Min Duty 50...

  • Page 35: Technical Data

    Technical Data Operation Characteristics WH-SDC12H6E5 WH-UD12HE5 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...
  • Page 36 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 (°C) Outdoor Temperature 5.500 4.500...
  • Page 37 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 (°C) Outdoor Temperature 5.500 4.500...
  • Page 38 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 (°C) Outdoor Temperature 5.500 4.500...
  • Page 39 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 40 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 41 Heating Capacity Table WH-SDC12H6E5 WH-UD12HE5 Water Out (°C) Input Input Input Input Input Input Capacity Capacity Capacity Capacity Capacity Capacity Outdoor Air (°C) Power Power Power Power Power Power 9300 3460 8900 3620 8500 3790 8100 3950 7500 4050 7000...

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