Panasonic WH-MDC012H6E5 Service Manual Download Page 10

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6. Refrigeration and Water Cycle Diagram

Mono bloc Unit

Pipe

Temp.

Sensor

Defrost

Temp.

Sensor

Water Inlet

Temp.

Sensor

Water Outlet

Temp.

Sensor

Ref Pipe

Temp.

Sensor

Air

Temp.

Sensor

Compressor

Discharge Temp.

Sensor

Backup Heater

Outdoo r

Side

Expansion

Vessel

Pressure

Relief

Valve

Air Purge

Valve

Water

Flow

Switch

Water

Pump

Water

Inlet

Water

Outlet

Refrigerant Cycle (Heating)
Water Cycle

Heat

Exchanger

Heat

Exchanger

Receiver

4-Way

Strainer

2-Way

Valve

Gas Side

(3-Way Valve)

Liquid Side

(3-Way Valve)

Pressure

Switch

High Pressure

Sensor

Compressor

Water

Pressure

Gauge

Expansion

Valve

Refrigerant Cycle (Cooling)

Muffler

Shut

Valve

Shut

Valve

Filter

Hex Water outlet

Temp.

Sensor

Strainer

Eva Exit

Temp.

Sensor

Summary of Contents for WH-MDC012H6E5

Page 1: ...chnical 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 ...

Page 2: ...ll children it may cause suffocation 7 Do not use pipe wrench to install refrigerant pipe It might deform the piping and cause the unit to malfunction 8 Do not purchase unauthorized electrical parts for installation service maintenance and etc They might cause electrical shock or fire 9 This unit is a multi supply appliances All circuits must be disconnected before accessing to the unit terminals ...

Page 3: ...ge hence electrical shock or fire 4 Do not touch the sharp aluminium fin sharp parts may cause injury 5 Do not apply excessive force to water pipes that may damage the pipes If water leakage occurs it will cause flooding and damage to other properties 6 Carry out drainage piping as mentioned in installation instructions If drainage is not perfect water leakage may happen and may cause damage to pr...

Page 4: ...ature Application W55 Warmer Average Colder Application Climate Pdesign kW 10 0 13 0 10 0 Tbivalent TOL C 2 2 3 10 15 22 SCOP ns W W 4 30 169 3 33 130 3 10 121 Annual Consumption kWh 3104 8076 7955 Class A A A Noise Level Condition Ambient Water A35W7 A7W35 A2W35 dB A Cooling 54 Heating 55 Power Level dB Cooling 72 Heating 72 Air Flow m 3 min ft 3 min Cooling 97 8 3450 Heating 90 0 3180 Refrigerat...

Page 5: ...2 Phase Ø Max Current A Max Input Power W 1Ø 26 0 6 00k Power Supply 3 Phase Ø Max Current A Max Input Power W Item Unit Mono Bloc Unit Starting Current A 21 5 Running Current Condition Ambient Water A35W7 A7W35 A2W35 A Cooling 21 5 Heating 16 9 Heating 17 9 Maximum Current For Heatpump System A 26 0 Power Factor Power factor means total figure of compressor and outdoor fan motor Cooling 96 Heatin...

Page 6: ...itch Electronic Sensor Protection Device A Residual Current Circuit Breaker 40 Expansion Vessel Volume I 10 MWP bar 3 Capacity of Integrated Electric Heater kW 3 00 Note Cooling capacities are based on outdoor air temperature of 35 C Dry Bulb with controlled indoor water inlet temperature of 12 C and water outlet temperature of 7 C Heating capacities are based on outdoor air temperature of 7 C Dry...

Page 7: ...ector to protect compressor Serviceability Improvement Breakdown Self Diagnosis function System Status Check Buttons for servicing purpose System Pumpdown Button for servicing purpose Front maintenance design for outdoor unit Operation Condition Indoor Outdoor Water outlet temperature C Ambient temperature C COOLING Maximum 20 43 Minimum 5 16 HEATING Maximum 55 35 Minimum 20 20 NOTICE When the out...

Page 8: ...16 10 14 15 Component name 1 PCB 2 1 Single phase RCCB Main Power 2 2 Single phase RCCB Ba ckup Heater 3 Heat Exchanger 4 Water Pressure gauge 5 Water pump 6 Cabinet top plate 7 Expansion vessel Not Visible 8 Flow sensor 9 Heater assem bly 0 Overload protector 3 pieces a Pressure relief valve b Air purge valve c Water Filter Set d Plug 2 pieces e Bushing 6 pieces f Cabinet front plate g Cover Conn...

Page 9: ...Dimensions Mono Bloc Unit 400 1410 615 427 70 152 1284 319 Unit mm Top View Front View Back View Side View Side View 39 322 39 51 73 63 210 195 ...

Page 10: ...ressure Relief Valve Air Purge Valve Water Flow Switch Water Pump Water Inlet Water Outlet Refrigerant Cycle Heating Water Cycle Heat Exchanger Heat Exchanger Receiver 4 Way Strainer 2 Way Valve Valve Gas Side 3 Way Valve Liquid Side 3 Way Valve Pressure Switch High Pressure Sensor Compressor Water Pressure Gauge Expansion Valve Refrigerant Cycle Cooling Muffler Shut Valve Shut Valve Filter Hex Wa...

Page 11: ...OR HEAT CLOSE CLOSE N N OPEN OPEN COOL N L L2 WHT G03 GRN L1 WHT 2 1 1 2 REACTOR OLP G G FUSE1 T6 3A L250V FUSE 3 T3 15A L250V NOISE FILTER CIRCUIT NOISE FILTER CIRCUIT NOISE FILTER CIRCUIT COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT BL W POWER SUPPLY 1 Single phase AC230V 50Hz L N BL W RCCB 230V 40A I n 30mA R CLOSE CLOSE N N OPEN OPEN 1 3 1 R 1 2 REFRIGERANT SYSTEM TERMINAL BOARD CN HT WHT 1 3 B...

Page 12: ...TRONIC CONTROLLER SUB BLACK BL CN ACN BLACK DCN OUT WHITE FG1 GREEN FG2 GREEN CN BLK N CN WHT CIRCUIT G G CN ACL W BLACK 3 BASE PAN HEATER ELECTRO WHITE 4 CIRCUIT G T3 15A L250V HIGH PRESSURE SWITCH OPTIONAL RECTIFICATION YELLOW RED DCN DCN IN MAGNETIC COIL 2 WAY VALVE RY V1 WHITE CN EV M M M COMPRESSOR TERMINAL REFER TO TERMINAL COVER FOR WIRE INSERT BLUE YELLOW RED 3 MS R Y COMPRESSOR B U W V R ...

Page 13: ...careful that heat radiation from the condenser is not obstructed Do not place any obstacles which may cause a short circuit of the discharged air Avoid installing the Mono bloc unit at a location where suction side may be exposed directly to wind If Mono bloc unit installed near sea region with high content of sulphur or oily location e g machinery oil etc it lifespan maybe shorten When installing...

Page 14: ... can withstand the pressures and temperatures of the system Make sure to use two spanners to tighten the connection Tighten the nuts with torque wrench 117 6 N m If non brass metallic piping is used for installation make sure to insulate the piping to prevent galvanic corrosion Do not use pipes that are crushed or deformed If these inferior pipes are used it may cause unit malfunction Make sure to...

Page 15: ...nnecting means See below table for cable size requirement Model Power Supply Cord Cable Size Isolating Devices Recommended RCD WH MDC012H6E5 and WH MDC016H6E5 1 3 x min 4 0 mm 2 30A 30mA 2P type A 2 3 x min 4 0 mm 2 30A 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 blo...

Page 16: ... heavier or similarly double insulation sheathed cable note Two way Valve shall be CE marking compliance component Maximum load for the valve is 9 8VA 2 Three way valve shall be spring and electronic type Valve cable shall be 3 x min 1 5 mm2 of type designation 60245 IEC 57 or heavier or similarly double insulation sheathed cable note Shall be CE marking compliance component It shall be directed t...

Page 17: ...tank sensor pool water sensor and solar sensor cable shall be 2 x min 0 3 mm2 double insulation layer with insulation strength of minimum 30V of PVC sheathed or rubber sheathed cable Optional cables External control cable Tank sensor cable Room sensor zone 1 Outdoor air sensor cable Tank OLP cable Power Supply 1 cord Apply cut Bushing e x 6 Power Supply 2 cord Remote controller cable Optional cabl...

Page 18: ...gnal cable Room thermostat zone 1 cable Room thermostat zone 2 cable from optional PCB Optional cables Room sensor zone 1 cable Room sensor zone 2 cable Buffer tank sensor cable Pool sensor cable Water sensor zone 1 cable Water sensor zone 2 cable Demand signal cable Solar sensor cable SG signal cable Heat Cool switch cable External Compressor switch cable from optional PCB How to guide optional c...

Page 19: ...insulation PVC sheathed or rubber sheathed cable Total cable length shall be 50 m or less Be careful not to connect cables to other terminals e g power source wiring terminal Malfunction may occur Do not bundle together with the power source wiring or store in the same metal tube Operation error may occur Mounting The Remote Controller 11 1 5 3 For exposed type Preparation Make 2 holes for screws ...

Page 20: ...aces Mount the bottom case to the wall Pass the wire through the hole in the centre of the bottom case Connect the remote control wiring Pass through the hole Bottom case Back side Top case Back side Remote controller terminal board Remove the coating Approx 6 mm Remove the sheath Approx 180 mm Make sure the wiring connection is in the correct direction Clamper field supply WARNING This section is...

Page 21: ...ater Make sure all the piping installations are properly done before carry out below steps 1 Open Cabinet front plate to access to the Pressure Relief Valve and Air Purge Valve 2 Turn the plug on the Air Purge Valve outlet anticlockwise by one complete turn from fully closed position 3 Set the Pressure Relief Valve level DOWN 4 Start filling water with pressure more than 0 1 MPa 1 bar to the Mono ...

Page 22: ...wer is supplied to the Mono bloc unit WARNING Be careful not to touch parts other than RCCB test button when the power is supplied to Mono bloc unit Else electrical shock may happen Push the TEST button on the RCCB The lever would turn down and indicate 0 if it functions normal Contact authorized dealer if the RCCB malfunction Turn off the power supply to the Mono bloc unit If RCCB functions norma...

Page 23: ...4 Take off the clip then gently pull out the mesh Beware of small amount water drain out from it 5 Clean the mesh with warm water to remove all the stain Use soft brush if necessary 6 Reinstall the mesh to the Water Filter Set and set back the clip on it 7 Set the two valves for the Water Filter Set to OPEN 8 Turn ON power supply 9 After cleaning reinstall the Cover by tightening the mounting scre...

Page 24: ...ump AC230V Used when Mono bloc pump capacity is insufficient Booster heater AC230V Used when using booster heater in DHW tank Boiler contact Dry contact System setup necessary Thermistor inputs Zone 1 room sensor PAW A2W TSRT It does not work when using the optional PCB Outdoor air sensor AW A2W TSOD Total cable length shall be 30m or less Tank sensor Please use Panasonic specified part Connection...

Page 25: ... the outdoor air temperature sensor will be unable to measure the actual outdoor ambient temperature correctly In this case optional outdoor temperature sensor can be fixed at a suitable location to more accurately measure ambient temperature 4 Room sensor PAW A2W TSRT Install the room temperature sensor to the room which requires room temperature control 5 Solar sensor PAW A2W TSSO Use for measur...

Page 26: ... pump Power supply AC230V 50Hz 500W Recommended part Yonos 25 6 made by Wilo For optional mixing valve Power supply AC230V 50Hz input open output close Operating time 30s 120s Recommended part 167032 made by Caleffi ...

Page 27: ... 1 pump P1 use to circulate zone 1 water circuit Zone 1 mixing valve M1 adjust to control the Zone 1 target water temperature Zone 2 pump P2 use to circulate zone 2 water circuit Zone 2 mixing valve M2 adjust to control the Zone 2 target water temperature When Pool Function select as Zone 2 circuit P2 use to circulate water to heat exchanger which use to transfer heat to pool water Pool pump P3 ci...

Page 28: ...rature 7 C DBT 6 C WBT Indoor water inlet temperature 30 C Indoor water outlet temperature 35 C Outdoor Temperature C Capacity kW Outdoor Temperature C Input Power kW 1 000 2 000 3 000 4 000 5 000 6 000 1 10 000 11 500 13 000 14 500 16 000 17 500 15 11 7 3 1 5 9 13 17 21 25 15 11 7 3 1 5 9 13 17 21 25 ...

Page 29: ...e 35 C DBT C WBT Indoor water inlet temperature 12 C Indoor water outlet temperature 7 C Outdoor Temperature C Capacity kW Outdoor Temperature C Input Power kW 1 000 2 000 3 000 4 000 5 000 6 000 16 19 22 25 28 31 34 37 40 43 6 000 8 000 10 000 12 000 14 000 16 000 16 19 22 25 28 31 34 37 40 43 ...

Page 30: ...W Input Power W 15 10600 4090 10300 4380 10000 4670 9700 4960 7900 4840 7 11900 4030 11400 4430 10800 4830 10300 5220 9000 4880 2 13500 3740 13000 3960 12400 4180 11900 4400 9800 4440 7 16000 3210 16000 3740 16000 4271 16000 4800 14500 5330 12 16000 2310 16000 2690 16000 3070 16000 3450 15900 3890 Cooling Capacity Table WH MDC12H6E5 Water Out C 7 14 18 OD Ambient C Capacity W Input Power W Capacit...

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