Panasonic WH-MDC012H6E5 Service Manual
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Panasonic WH-MDC012H6E5 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.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WARNING
PRECAUTION OF LOW TEMPERATURE
Mono Bloc Unit
W
WH-MDC16H6E5
Destination
Europe
Turkey
© Panasonic Corporation 2017.

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Summary of Contents for Panasonic WH-MDC012H6E5

  • Page 1 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 of (Mono bloc) Air-to-Water Heatpump system (hereafter referred to as “Mono bloc unit”).  Electrical works and water installation works must be done by licensed electrician and licensed water system installer respectively.
  • Page 3 WARNING When installing electrical equipment at wooden building of metal lath or wire lath, in accordance with electrical facility standard, no electrical contact between equipment and building is allowed. Insulator must be installed in between. This installation may be subjected to building regulation approval applicable to respective country that may require to notify the local authority before installation.
  • Page 4 WH-MDC16H6E5 Item Unit Refrigerant System Performance Test Condition EN 14511 Condition A35W7 (Ambient/Water) 12.20 Cooling Capacity BTU/h 41600 kcal/h 10490 2.56 Cooling EER kcal/hW 2.20 Condition A7W35 A2W35 (Ambient/Water) 16.00 13.00 Heating Capacity BTU/h 54600 44300 kcal/h 13760 11180 4.28 3.28 Heating COP kcal/hW...
  • Page 5 Item Unit Refrigerant System Fin material Aluminium (Pre Coat) Fin Type Corrugated Fin Heat Exchanger Row × Stage × FPI 2 × 51 × 18 Size (W × H × L) 903.7 × 1295.4 × 38.1 ø Single Power Source (Phase, Voltage, Cycle) Condition A35W7 A7W35...
  • Page 6 Item Unit Water System 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: 52.0 Internal Pressure Differential Heating: 88.0 Water Drain Hose Inner Diameter mm (inch) 15.0 (19/32)
  • Page 7 Features  Inverter Technology - Energy saving  High Efficiency  Compact Design  Environment Protection - Non-ozone depletion substances refrigerant (R410A)  Easy to use control panel  Weekly Timer setting  Quality Improvement - Random auto restart after power failure for safety restart operation - Gas leakage protection - Prevent compressor reverse cycle - Inner protector to protect compressor...

  • Page 8: Main Components

    Main Components CAUTION 240-250V DETAIL A Component name 1 PCB 9 Heater assem bly Connector name 0 Overload protector (3 pieces) Water inlet Single phase RCCB (Main Power) a Pressure relief valve Water outlet Single phase RCCB (Ba ckup Heater) 3 Heat Exchanger b Air purge valve c Water Filter Set...
  • Page 9 Dimensions Mono Bloc Unit <Top View> <Front View> <Side View> <Side View> 1284 <Back View> Unit: mm...

  • Page 10: Refrigeration And Water Cycle Diagram

    6. Refrigeration and Water Cycle Diagram Outdoo r Side Mono bloc Unit Water Pressure Gauge Liquid Side Expansion (3-Way Valve) Strainer Valve Strainer Shut Shut Valve Valve Water Inlet Filter Water Pump Receiver Defrost Water Inlet Temp. Ref Pipe Temp. Sensor Temp.

  • Page 11: Electronic Circuit Diagram

    Electronic Circuit Diagram Water System 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 12: Refrigerant System

    Refrigerant System ELECTRONIC CONTROLLER (CAPACITOR) FG1 (GREEN ) FG2 (GREEN) CN-BLK RELAY CN-ACL (BLACK) DC P-IN REACTOR (BLACK) (WHITE) CAPACITOR NOISE FILTER CIRCUIT FG201 AC-BLK DCN-IN CIRCUIT (GREEN) (BLACK) (BLACK) CN-ACN (WHITE) AC-C (BLUE) DCN-OUT CN-WHT (BLACK) (WHITE) ELECTRONIC CONTROLLER (SUB) YELLOW AC-BLK01 AC-L...

  • Page 13: Installation Instruction

    Installation Instruction  A place where the Mono bloc unit’s piping and Mono Bloc Unit wiring lengths come within reasonable ranges.  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.

  • Page 14: Piping Installation

    Disposal of Mono Bloc Unit Drain Water  When a Drain elbow is used, please ensure to follow below: The unit should be placed on a stand which is taller than 50mm. Cover the 8 holes (ø20mm) with Rubber cap (refer to illustration below) Use a tray (field supply) when necessary to dispose the Mono bloc unit drain water.
  • Page 15 Recommended RCD 3 x min 4.0 mm 30mA, 2P, type A WH-MDC012H6E5 and WH-MDC016H6E5 3 x min 4.0 mm 30mA, 2P, type AC 2. To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through the designated holes before being connected to the terminal block.
  • Page 16 Connecting Requirement For WH-MDC12H6E5 and WH-MDC16H6E5  This equipment’s power supply 1 complies with IEC/EN 61000-3-12 provided that the short circuit power S greater than or equal to 1100kW at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short circuit power S greater than...
  • Page 17 11 Tank OLP cable must be (2 x min 0.5 mm ), double insulation layer of PVC-sheathed or rubber-sheathed cable. • Power Supply 1 cord Apply cut • Power Supply 2 cord • Remote controller cable Optional cables: • External control cable •...
  • Page 18 Water sensor zone 1 and zone 2 cable shall be (2 x min 0.3 mm ), double insulation layer of PVC-sheathed or rubber-sheathed cable. 10 Demand signal cable shall be (2 x min 0.3 mm ), double insulation layer of PVC-sheathed or rubber- sheathed cable.

  • Page 19: Installation Of Remote Controller

    11.1.5 Installation of Remote Controller 11.1.5.1 Installation Location  Install at the height of 1 to 1.5 m from the floor (Location where average room temperature can be detected).  Install vertically against the wall.  Avoid the following locations for installation. By the window, etc.
  • Page 20 For embedded type Preparation: Make 2 holes for screws using a driver. Mount the bottom case to the wall. Mount the top case. • 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 of the bottom case.
  • Page 21 Installation of Network Adaptor and Base Pan Heater 11.1.6.1 Network Adaptor and Installation (Optional) 1. Open the Cabinet front plate, then connect the 3. On the wall near the Mono bloc unit, attach the Network Adaptor Cable to the CN-CNT adaptor by screwing screws through the holes connector on the printed circuit board.

  • Page 22: Expansion Vessel Pre Pressure Checking

    Reconfirmation Check RCCB Ensure the RCCB set to “ON” condition before check WARNING RCCB. Be sure to switch off all power supply before performing each of Turn on the power supply to the Mono bloc unit. the below checkings. Before obtaining access to terminals, all This testing could only be done when power is supply circuits must be disconnected.

  • Page 23: Maintenance

    Maintenance WARNING  In order to ensure optimal performance of the unit, Do not add or replace other than R410A type. It may cause product damage, burst, injury and etc. Use compatible seasonal inspections on the unit, functional check R410A tools for refrigerant piping work and refrigerant of RCCB, field wiring and piping have to be charging during installation or servicing.
  • Page 24 Solar pump Outdoor air AW-A2W-TSOD (Total cable length shall be 30m or Pool pump sensor less) Pump Tank sensor Please use Panasonic specified part Boiler contact External control Connection of Optional PCB Tank sensor (CZ-NS4P) Room sensor Outdoor air sensor...

  • Page 25: Specification

    Insert the sensor into the sensor pocket and  This section explains about the external devices paste it on the solar panel surface. (optional) recommended by Panasonic. Please always ensure to use the correct external device Dimensions (mm) during system installation.
  • Page 26   For optional pump. For optional mixing valve. Power supply: AC230V/50Hz, <500W Power supply: AC230V/50Hz (input open/output Recommended part: Yonos 25/6: made by Wilo close) Operating time: 30s~120s Recommended part: 167032: made by Caleffi...
  • Page 27 1) P-Q graph for different pump HEX duty 16kw rated duty 97 Max duty C5 12kw rated duty 81 Min duty 50 Water Flow Rate, Q (L/min) 12.2.2 Zone Water Pump Control Purpose:  Water pump install at each zone to circulate the water inside each zone during buffer tank connection selected “YES”...
  • Page 28 WH-MDC16H6E5 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 17.500 16.000 14.500 13.000 11.500 10.000 Outdoor Temperature (°C) 6.000 5.000 4.000 3.000 2.000...
  • Page 29 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 16.000 14.000 12.000 10.000 8.000 6.000 Outdoor Temperature (°C) 6.000 5.000 4.000 3.000 2.000 1.000...
  • Page 30 Heating Capacity Table WH-MDC12H6E5 Water Out (°C) Input Input Input Input Capacity Input Capacity Capacity Capacity Capacity Outdoor Air (°C) Power Power Power Power Power (W) 9300 3460 8900 3620 8500 3790 8100 3950 7000 4100 10400 3370 10000 3660 9600 3950 9200...

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