Panasonic WH-MDC09C3E8 Service Manual Download Page 91

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16.5.8 Tank Temperature Sensor Abnormality (H72)

Malfunction Decision Conditions:

When tank connection is set to ON, the temperatures detected by the tank temperature sensor are used to
determine sensor error.

Malfunction Caused:

1 Faulty

connector

connection.

2 Faulty

sensor.

3 Faulty indoor unit PCB (main).

Abnormality Judgment:

Continue for 5 seconds.

Summary of Contents for WH-MDC09C3E8

Page 1: ...leakage during the installation or repairing of refrigerant circuit WARNING 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 o...

Page 2: ...Base Pan Heater Control Optional 65 12 12Three Way Valve Control 66 12 13Sterilization Mode 66 12 14Quiet Operation 66 12 15Anti Freeze Control 66 12 16Solar Operation Optional 67 12 17External Room Thermostat Control Optional 70 12 18Two ways valve control 71 13 Protection Control 72 13 1 Protection Control for All Operations 72 13 2 Protection Control for Heating Operation 74 13 3 Protection Con...

Page 3: ...3 WH MDC14C9E8 1 WH MDC16C9E8 1 Refrigerant System 132 19 2 WH MDC09C3E8 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC09C3E8 1 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 Water System 137 ...

Page 4: ...current will cause electrical shock or fire 6 Do not tie up the power supply cord into a bundle by band Abnormal temperature rise on power supply cord may happen 7 Do not insert your fingers or other objects into the unit high speed rotating fan may cause injury 8 Do not sit or step on the unit you may fall down accidentally 9 Keep plastic bag packaging material away from small children it may cli...

Page 5: ...n re installation and during repairing a refrigeration parts Take care of the liquid refrigerant it may cause frostbite 3 Make sure the power supply cord does not contact with hot part i e water piping High temperature may cause insulator of power supply cord damage hence electrical shock or fire 4 Do not touch the sharp aluminum fins or edges of metal parts If you are required to handle sharp par...

Page 6: ...r Gas mm inch 15 88 5 8 Type Hermetic Motor Rotary Motor Type Brushless 4 poles Compressor Rated Output kW 4 30 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 540 Top Fan 580 Bottom Fan Heating 490 Top Fan 530 Bottom Fan Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 51 18 Heat Exchanger Size W H L mm 8...

Page 7: ... mm inch 15 88 5 8 Inlet mm inch 30 1 3 16 Water Pipe Diameter Outlet mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Motor Type Capacitor Run Induction Motor 5 μF No of Speed 3 Pump Input Power W 180 Type Brazed Plate No of Plates 60 Size H x W x L mm 93 100 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 20 1 1 2 Heating 25 8 1 6 Pressure Relief Valve Water Circuit k...

Page 8: ...less 4 poles Compressor Rated Output kW 4 30 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 600 Top Fan 640 Bottom Fan Heating 510 Top Fan 550 Bottom Fan Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 51 18 Heat Exchanger Size W H L mm 881 5 1295 4 44 Item Unit Mono Bloc Unit Height mm inch 1410 55 5 Wi...

Page 9: ...let mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Motor Type Capacitor Run Induction Motor 5 μF No of Speed 3 Pump Input Power W 180 Type Brazed Plate No of Plates 60 Size H x W x L mm 100 93 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 28 7 1 7 Heating 34 4 2 1 Pressure Relief Valve Water Circuit kPa Open 300 Close 265 and below Flow Switch Magnetic Lead Switch P...

Page 10: ...hless 4 poles Compressor Rated Output kW 4 30 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 630 Top Fan 670 Bottom Fan Heating 540 Top Fan 580 Bottom Fan Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 51 18 Heat Exchanger Size W H L mm 881 5 1295 4 44 Item Unit Mono Bloc Unit Height mm inch 1410 55 5 W...

Page 11: ...let mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Motor Type Capacitor Run Induction Motor 5 μF No of Speed 3 Pump Input Power W 180 Type Brazed Plate No of Plates 60 Size H x W x L mm 100 93 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 33 0 2 0 Heating 40 1 2 4 Pressure Relief Valve Water Circuit kPa Open 300 Close 265 and below Flow Switch Magnetic Lead Switch P...

Page 12: ...s Compressor Rated Output kW 4 30 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 630 Top Fan 670 Bottom Fan Heating 580 Top Fan 620 Bottom Fan Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 51 18 Heat Exchanger Size W H L mm 881 5 1295 4 44 Item Unit Mono Bloc Unit Height mm inch 1410 55 5 Width mm inch...

Page 13: ...Diameter Outlet mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Motor Type Capacitor Run Induction Motor 5 μF No of Speed 3 Pump Input Power W 180 Type Brazed Plate No of Plates 60 Size H x W x L mm 100 93 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 35 0 2 1 Heating 45 9 2 8 Pressure Relief Valve Water Circuit kPa Open 300 Close 265 and below Flow Switch Magnetic L...

Page 14: ...otector to protect compressor Serviceability Improvement Breakdown Self Diagnosis function System Status Check Buttons for servicing purpose System Service Mode Button for servicing purpose Front maintenance design for Mono bloc unit Operation Condition Water outlet temperature C Outdoor Ambient temperature C Maximum 20 43 COOLING Minimum 5 16 Maximum 55 35 HEATING Minimum 25 20 NOTICE When the ou...

Page 15: ...15 4 Location of Controls and Components 4 1 Mono Bloc Unit ...

Page 16: ...he flow switch checks the flow in the water circuit and protects the heat exchanger against high pressure built up and the pump against damage Pressure Relief Valve The pressure relief valve prevents excessive water pressure in the water circuit 300kPa Electric Heater Additional heating capacity to the system when water and ambient temp is low Expansion Vessel Storage for excessive water ...

Page 17: ...17 4 1 2 Location of Control 4 1 2 1 Remote Control The user interface allows the installer and user to setup use and maintain the unit ...

Page 18: ...18 ...

Page 19: ...19 ...

Page 20: ...20 4 1 2 2 Weekly Timer Setting ...

Page 21: ...21 4 1 2 3 Setting Up the Special Functions ...

Page 22: ...22 5 Dimensions 5 1 Mono Bloc Unit ...

Page 23: ...23 6 Refrigeration And Water Cycle Diagram ...

Page 24: ...24 ...

Page 25: ...25 7 Block Diagram 7 1 WH MDC09C3E8 WH MDC09C3E8 1 ...

Page 26: ...26 7 2 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 ...

Page 27: ...27 8 Wiring Connection Diagram 8 1 WH MDC09C3E8 WH MDC09C3E8 1 ...

Page 28: ...28 ...

Page 29: ...29 8 2 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 ...

Page 30: ...30 ...

Page 31: ...31 9 Electronic Circuit Diagram 9 1 WH MDC09C3E8 WH MDC09C3E8 1 ...

Page 32: ...32 ...

Page 33: ...33 9 2 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 ...

Page 34: ...34 ...

Page 35: ...35 10 Printed Circuit Board 10 1 Water System 10 1 1 Main Printed Circuit Board ...

Page 36: ...36 10 1 2 Solar Printed Circuit Board Optional ...

Page 37: ...37 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...

Page 38: ...38 10 2 2 Noise Filter Printed Circuit Board ...

Page 39: ...39 11 Installation Instruction Mono Bloc Unit Dimension Diagram ...

Page 40: ...40 Main Components ...

Page 41: ...f 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 the product in a place where it will be affected by typhoon or strong wind such as wind blowing between buildings including ...

Page 42: ...ately might cause the unit malfunction Choose proper sealer which 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 i...

Page 43: ...5 mm2 and power supply 2 cord 3 x min 1 5 mm2 and power supply 3 cord 5 x min 1 5 mm2 type designation 60245 IEC 57 or heavier cord to the RCCB and to the other end of the cord to isolating device Disconnecting means 2 To avoid the cable and cord being damaged by sharp edges the cable and cord must be passed through a bushing located at the right hand side of the mono bloc unit before being connec...

Page 44: ...2 double insulation layer of PVC sheathed or polychloroprene sheathed cable note if such connection deemed NO necessary for tank OLP please connect jumper between terminal no 13 and 14 8 Tank Sensor shall be resistance type please refer to Graph 4 1 for the characteristic and details of sensor Its cable shall be 2 x min 0 3 mm2 double insulation layer with insulation strength of min 30V of PVC she...

Page 45: ... to a suitable supply network with the following maximum permissible system impedance Zmax 0 449 Ω at the interface of the point Please liaise with supply authority to ensure that the power supply 3 is connected only to a supply of that impedance or less 11 4 3 Wired Remote Control Installation Attached Accessories No Name Qty Diagram Remark 1 Remote control 1 2 Remote control cable 1 Length 15 m ...

Page 46: ... board when removing the remote control lower case 3 Secure the lower case to an outlet box or wall Refer to A or B instructions below depending on your choice of cable installation 4 Be sure to use only the screws provided 5 Do not over tighten the screws as it may result in damage to the lower case A If Remote Control Cable Is Embedded 1 Embed an outlet box JIS C 8336 into the wall Outlet box ma...

Page 47: ...e Remote Control Cable To Mono Bloc Unit WARNING Be sure to turn off the main power before installing and connecting the remote control Otherwise it will cause the electrical shock 1 Remove the cabinet front plate 2 Connect the remote control cable with the provided connector as shown in below illustration Refer wiring diagram for detail 3 Guide the remote control cable through the clamper and Bus...

Page 48: ... judging the condition according to internal water setting temperature and water outlet temperature 12 1 1 Heating Operation 12 1 1 1 Thermostat Control Compressor is OFF when Water Outlet Temperature Internal Water Setting Temperature 2 C for continuously 3 minutes Compressor is ON after waiting for 3 minutes if the Water Outlet Temperature Water Inlet Temperature temperature at thermostat OFF is...

Page 49: ...itch and fix to room side 2 Heatpump operate follow normal cooling operation 3 Backup heater DOES NOT operate during cool mode 4 Solar 3 way valve operates follow solar operation specification 5 2 ways valve control o 2 ways valve is closed Cool Mode Operation Time Chart ...

Page 50: ...ture 1 C 2 Tank temperature THERMO OFF TEMP for continuous 10 seconds after heat pump OFF water pump OFF THERMO ON TEMP 1 THERMO ON TEMP Water set temperature 1 C When detect tank temperature THERMO ON TEMP water pump ON for 3 minutes then heat pump ON ii Case 2 Heat pump THERMO OFF TEMP 1 Heat pump THERMO OFF TEMP 53 C 4 C 2 Water outlet temperature Heat pump THERMO OFF TEMP for continuous 3 minu...

Page 51: ...Booster heater turn ON condition 1 During startup time initialization Booster heater turn ON after DELAY TIMER 2 When tank temperature lower than HEATER ON TEMP 3 20 minutes from previous heater off Booster heater turn OFF condition 1 When tank temperature higher than tank set temperature for continuous 15 secs Solar 3 way valve Solar pump operates follow solar operation specification 2 way valve ...

Page 52: ...52 ...

Page 53: ...Room Thermo OFF AND Solar 3 ways valve OFF 2 Heat pump operation control o During External Room Thermo ON time When room thermo ON heat pump must operate to room side Heat pump operate follow normal operation at room side o During External Room Thermo OFF time Switch 3 ways valve to tank side IF Under Solar Priority Set condition o Tank temperature Tank THERMO ON TEMP AND Solar Valve OFF Under Sol...

Page 54: ...Heat pump THERMO OFF TEMP 1 Heat pump THERMO OFF TEMP 53 C 4 C 2 Water outlet temperature Heat pump THERMO OFF TEMP for continuous 3 minutes heat pump OFF o Next THERMO ON TEMP 1 THERMO ON TEMP Water inlet when heat pump THERMO OFF 3 C 2 If water outlet temperature THERMO ON TEMP AND External Room Thermo OFF heat pump ON Case 3 o Heat pump THERMO OFF TEMP 1 Water inlet temperature 55 C for continu...

Page 55: ...operation specification Under solar priority is set condition when solar 3WV turn ON booster heater will turn OFF and 3 ways valve switch to room side Under solar priority is not set condition solar 3WV will OFF when heat pump operate to tank side o 2 way valve opens ...

Page 56: ...temperature or 50 C whichever lower Heat pump Water Outlet set temperature is set to Maximum 55 C during tank interval Initial Tank THERMO ON TEMP heat pump tank target temperature 1 C Case 1 THERMO OFF TEMP 1 THERMO OFF TEMP Heat pump tank target temperature 1 C 2 Tank temperature THERMO OFF TEMP for continuous 10 seconds after heat pump off due to water thermo switch 3 ways valve to room side En...

Page 57: ...eat up interval Booster heater ON OFF according to booster heater operation control o During tank heat up interval Once switch from heating heat up interval to tank heat up interval turn off the booster heater and start counting the BOOSTER HEATER DELAY TIMER Booster heater turn ON after BOOSTER HEATER DELAY TIMER fulfill and tank temperature lower than tank set temperature BOOSTER HEATER DELAY TI...

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Page 59: ...59 ...

Page 60: ...n warmer water and vice versa The user has the possibility to shift up or down the target water temperature by remote control setting Change in setting water outlet temperature is updated every 30 minutes 12 1 7 1 Heating Mode Operation Time Chart Exp 1 3 ways valve control o 3 ways valve switch and fix to room side 2 Heatpump operate follow normal heating operation 3 Backup heater operate follow ...

Page 61: ...OFF If SET Switch pressed for less than 5 secs immediately enter water temperature shift setting mode Once enter this setting mode SETTING display is ON This setting mode is used to easily shift the target water outlet temperature 12 1 9 Fan Motor Operation Fan motor is adjusted according to operation condition It starts when compressor starts operation and it stops 30 seconds after compressor sto...

Page 62: ... setting is reached 12 2 1 Water Pump Only Operation Water pump only circulation can be set from the control panel SERVICE S W when the operation is in Standby Mode Press the SERVICE S W for continuous 5 sec to enter Service Mode In Service Mode select Sr 02 and press SET S W to start water pump only operation Water pump will stop operation when H62 is triggered Press the OFF ON button to stop the...

Page 63: ...on to stop the force heater mode operation 12 6 Mono Bloc Unit Safety 12 6 1 Mono Bloc Unit Safety Control 1 When water pump is ON the system will start checking flow switch status ON OFF 2 If the flow switch ON for 10 seconds the system will check on the water inlet temperature for 10 seconds If the water inlet temperature not exceeds 80 C the water pump shall be continuously running with normal ...

Page 64: ...ng deice operation o Heater Stop Condition a When outdoor set temperature outdoor set temperature 2 C for continuous 15 secs OR b When water out temp water set temperature 2 C for continuous 15 secs OR c Heater switch is Off OR d Heatpump thermo off or OFF condition 2 Force Heater Mode o Heater On Condition a After water pump operate 9 mins b When water outlet temperature water set temperature 8 C...

Page 65: ... C for continuous 15 sec o When BOOSTER HEATER DELAY TIMER start count after switch from heating heat up interval to tank heat up interval DELAY TIMER can be set by control panel 12 11 Base Pan Heater Control Optional To enable the base pan heater function pin 3 of SW2 of water system PCB has to be switched from OFF to ON position Base pan heater ON condition o When outdoor ambient temperature 3 C...

Page 66: ...may not achieve if tank booster heater function is deactivated o Boiling timer which set by remote controller will start count after tank achieve boiling set temperature o Sterilization operation will end after complete boiling timer or Max 4 hrs from function start o Target tank temperature will set back to normal tank set temperature Tank heater control is not affected by solar pump when solar p...

Page 67: ...ter is abnormal H70 then backup heater anti freeze control will not activate 12 16 Solar Operation Optional 12 16 1 Solar Operation 1 Control according to preset whether solar priority is set or not 2 When tank connection is NOT set at SETTING mode solar operation is disabled 3 When Pump A from solar pump station is detected On through connection Y3 and Y4 then the Solar pump 3 Way Valve is reques...

Page 68: ...iv Heatpump thermo OFF in tank mode OR Heatpump operate to room side during operation ON and tank mode selected 2 Stop condition o Solar pump stops operating when i No power supply to unit OR ii There is NO operation request from solar pump station OR iii Tank hot water temp is above solar off upper limit temp EEPROM 2 77 C iv Heatpump thermo ON and operate to tank side during operation ON and tan...

Page 69: ...69 Heat Tank Mode Heating Priority Set Tank Mode Solar Priority Set Solar Priority Not Set ...

Page 70: ...t OFF Short Circuit ON Set Temp Actual Temp Short Circuit ON Open Circuit OFF Wire Connection and thermo characteristic of Siemen RAA20 Setting L Y1 H Heat Thermo L Y2 C Cool Thermo Set Temp Actual Temp Open Circuit OFF Short Circuit ON Set Temp Actual Temp Short Circuit ON Open Circuit OFF Control Content External room thermostat control activate only when remote thermostat connection select YES ...

Page 71: ...ing panel Control contents 1 When indoor running in heat mode OPEN the 2 ways valve 2 When indoor running in cool mode CLOSE the 2 ways valve 3 Stop condition a During stop mode fix 2 ways valve in close condition During pump down mode fix 2 ways valve in close condition During force mode open 2 ways valve Recommended Parts SFA 21 18 Siemens ...

Page 72: ...ontrol 1 When the IPM temperature rises to 95 C compressor will stop immediately 2 Compressor will restart delay 3 minutes when the IPM temperature decreases to 90 C If this condition repeats continuously 3 times within 30 minutes system will stop operation and OFF ON remote control LED will blink F22 error occurs B DC Peak Current Control 1 When the current to IPM exceeds set value of 40 1 5 0 A ...

Page 73: ...etection conditions o When abnormal high voltage detection 5V or when open circuit detection 0V for 5 seconds continuously After detection o When abnormality is detected continue 5 seconds unit stop operation o OFF ON remote control LED will blink H64 error occurs 13 1 8 Outside Temperature Current Control 13 1 9 Extreme Low Temperature Control Purpose To improve the compressor reliability during ...

Page 74: ...Operation 13 2 1 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rises above 14 C in order to avoid compressor overloading 13 2 2 Deice Operation When outdoor pipe temperature and outdoor air temperature is low deice operation start where outdoor fan motor stop 13 2 3 Heat exchanger hot water coil protection control Backup heater ON condition...

Page 75: ...ressor starts Compressor frequency will adjust base on outdoor air Temperature 13 3 2 Freeze Prevention Control 1 1 When Mono bloc unit Water System heat exchanger temperature is lower than 0 C continuously for 10 seconds compressor will stop operating 2 Compressor will resume its operation three minutes after the Mono bloc unit Water System heat exchanger is higher than 1 C 3 Mono bloc unit heat ...

Page 76: ...er 10 15 minutes after 1 or 2 minutes in case very low ambient temperatures 10 C fully close 2 way valve 3 After 3 minutes fully close 3 way valve 4 Press the OFF ON switch on remote control to stop pump down operation 5 Remove the refrigerant piping 14 3 How to Adjust Water Flow Rate Before adjust the water flow rate make sure that the total water volume in the installation is 50 litres minimum T...

Page 77: ... contact your local authorized dealer Reinstall the cover with tighten the mounting screws properly if the pressure relief valve is functioning normal 3 Air purge valve Air purge valve must be installed at all high points in a closed water circuit system An automatic air purge valve is provided inside the indoor unit To automatically purge the air from the system turn the plug on the air outlet an...

Page 78: ...nal water filter field supply Clean the external water filter in regularly basic o External water filter is located inside the tube connector which is before water inlet connector of Mono bloc unit indicated with WATER IN Refer to figure below o Use spanner to detach the tube connector nut o Take out the filter carefully so that not deforms it shape o Use tap water only to wash the residue on the ...

Page 79: ...no electrical problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Page 80: ... Pressure High Pressure Electric current during operation Water leakage or insufficient water flow rate in the system Excessive amount of refrigerant Inefficient compression Insufficient refrigerant gas leakage Mono Bloc unit Refrigerant System heat exchange deficiency Clogged expansion valve or Strainer Carry out the measurements of pressure electric current and temperature fifteen minutes after ...

Page 81: ...IC memory To check the error code 1 When an abnormality occurs system will stop operation and OFF ON remote control LED will blink 2 Error code of the abnormality will display on the remote control Timer display LCD 3 To determine the abnormality description the Error Code Table needs to be referred To display past last error code 1 Turn ON power supply 2 Press and hold the CHECK button for more t...

Page 82: ...e overload protection Outdoor high pressure sensor Water pump or water leakage Clogged expansion valve or strainer Excess refrigerant Outdoor PCB H99 Indoor heat exchanger freeze prevention Indoor heat exchanger Refrigerant shortage F12 Pressure switch activate 4 times occurrence within 20 minutes Pressure switch F14 Outdoor compressor abnormal revolution 4 times occurrence within 20 minutes Outdo...

Page 83: ...e for 5 sec Water outlet temperature sensor defective or disconnected F46 Outdoor Current Transformer open circuit Insufficient refrigerant Outdoor PCB Compressor low F48 Outdoor EVA outlet temperature sensor abnormality Continue for 5 sec Outdoor EVA outlet temperature sensor defective or disconnected F49 Outdoor bypass outlet temperature sensor abnormality Continue for 5 sec Outdoor bypass outle...

Page 84: ...ration of cooling and heating the capability rank of indoor checked by the outdoor is used to determine connection capability rank abnormality Malfunction Caused 1 Wrong model interconnected 2 Wrong indoor unit or outdoor unit PCB main used 3 Faulty indoor unit or outdoor unit PCB main Abnormality Judgment Continue for 90 seconds ...

Page 85: ...During startup and operation of cooling and heating the temperatures detected by the compressor tank temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 86: ... During startup and operation of cooling and heating the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 87: ...ove 26 C is detected by the outdoor pipe temperature sensor Malfunction Caused 1 Dust accumulation on the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 2 way valve partially closed 4 Faulty outdoor unit fan motor 5 Refrigerant shortage refrigerant leakage 6 Clogged expansion valve or strainer 7 Faulty outdoor pipe temperature sensor 8 Faulty outdoor unit main PCB main ...

Page 88: ...etected by the indoor water flow switch is used to determine water flow error Malfunction Caused 1 Faulty water pump 2 Water leak in system 3 Faulty connector connection 4 Faulty water flow switch 5 Faulty indoor unit PCB main Abnormality Judgment Continue for 10 seconds but no judgment for 9 minutes after compressor startup restart ...

Page 89: ...n Conditions During operation of cooling and heating when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue 4 times in 20 minutes ...

Page 90: ...ndoor backup heater when no power supplies to indoor backup heater or OLP open circuit Malfunction Caused 1 Faulty power supply connector connection 2 Faulty connector connection 3 Faulty indoor backup heater overload protector OLP 4 Faulty indoor unit PCB main Abnormality Judgment Continue for 60 seconds ...

Page 91: ...onditions When tank connection is set to ON the temperatures detected by the tank temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 92: ...ation Abnormality H76 Malfunction Decision Conditions During standby and operation of cooling and heating indoor remote control error occur Malfunction Caused 1 Faulty connector connection 2 Faulty remote control 3 Faulty indoor unit PCB main ...

Page 93: ...s normal Malfunction Caused 1 Faulty outdoor unit PCB main 2 Faulty indoor unit PCB main 3 Indoor outdoor signal transmission error due to wrong wiring 4 Indoor outdoor signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units 5 Indoor outdoor signal transmission error due to disturbed power supply waveform Abnormality Judgment Continue for 1 mi...

Page 94: ...on Conditions During operation of tank booster heater and tank booster heater OLP open circuit Malfunction Caused 1 Faulty connector connection 2 Faulty tank booster heater overload protector OLP 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 60 seconds ...

Page 95: ...tween Indoor and Outdoor H95 Malfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused 1 Insufficient power supply 2 Faulty outdoor unit PCB noise filter main ...

Page 96: ...ssure 4 0MPa and above is detected by outdoor high pressure sensor Malfunction Caused 1 Faulty water pump 2 Insufficient water flow rate in system 3 Water leak in system 4 2 3 way closed 5 Clogged expansion valve or strainer 6 Excessive refrigerant 7 Faulty outdoor high pressure sensor 8 Faulty outdoor unit PCB main ...

Page 97: ...door refrigerant liquid temperature 0 C Malfunction Caused 1 Faulty water pump 2 Insufficient water flow rate in system 3 Water leak in system 4 2 way valve partially closed 5 Clogged expansion valve or strainer 6 Refrigerant shortage refrigerant leakage 7 Faulty indoor refrigerant liquid temperature sensor 8 Faulty indoor unit PCB main ...

Page 98: ...lfunction Caused 1 Dust accumulation on the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 Faulty water pump 4 Insufficient water flow rate in system 5 Water leak in system 6 2 3 way valve closed 7 Clogged expansion valve or strainer 8 Excessive refrigerant 9 Faulty outdoor high pressure sensor and switch 10 Faulty outdoor unit PCB Abnormality Judgment Continue 4 times in 20 min...

Page 99: ...compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused 1 Compressor terminal disconnect 2 Faulty outdoor unit PCB main 3 Faulty compressor Abnormality Judgment Continue 4 times in 20 minutes ...

Page 100: ...l fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused 1 Operation stop due to short circuit inside the fan motor winding 2 Operation stop due to breaking of wire inside the fan motor 3 Operation stop due to breaking of fan motor lead wires 4 Operation stop due to fan motor Hall IC malfunction 5 Operation error due to faulty outdoor unit PCB Abnormality Judgment Continue 2 times in 3...

Page 101: ...itions During operation of cooling and heating when outdoor current above 10 6A is detected by the current transformer CT in the outdoor unit PCB Malfunction Caused 1 Excessive refrigerant 2 Faulty outdoor unit PCB main Abnormality Judgment Continue 3 times in 20 minutes ...

Page 102: ...ve 112 C is detected by the compressor tank temperature sensor Malfunction Caused 1 Faulty compressor tank temperature sensor 2 2 3 way valve closed 3 Refrigerant shortage refrigerant leakage 4 Clogged expansion valve or strainer 5 Faulty outdoor unit PCB main 6 Faulty compressor Abnormality Judgment Continue 4 times in 30 minutes ...

Page 103: ...onditions During operation of cooling and heating when temperature 95 C is detected by the outdoor IPM temperature sensor Malfunction Caused 1 Faulty outdoor unit fan motor 2 Faulty outdoor unit PCB main Abnormality Judgment Continue 3 times in 30 minutes ...

Page 104: ...of cooling and heating when outdoor DC current is above 40 1 5 0A for UD07 09CE OR 44 7 5 0A for UD12 16CE is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB main Malfunction Caused 1 Faulty outdoor unit PCB main 2 Faulty compressor Abnormality Judgment Continue for 7 times ...

Page 105: ...let temperature indoor refrigerant liquid temperature 5 C 4 During operation of heating indoor refrigerant liquid temperature water inlet temperature 5 C Malfunction Caused 1 Faulty water inlet or indoor refrigerant liquid temperature sensors 2 2 3 way valve closed 3 Refrigerant shortage refrigerant leakage 4 Clogged expansion valve or strainer 5 Faulty outdoor unit PCB main 6 Poor compression of ...

Page 106: ... temperature of thermostat ON indoor unit 0 C 2 During cooling operation when the indoor pipe temperature of thermostat ON indoor unit 45 C Malfunction Caused 1 Faulty sensor 2 Faulty connector connection 3 Faulty outdoor unit PCB noise filter main 4 Faulty four way valve Abnormality Judgment Continue 4 times in 30 minutes ...

Page 107: ...l F27 Malfunction Decision Conditions During compressor stop and outdoor high pressure switch is remain opened Malfunction Caused 1 Faulty connector connection 2 Faulty switch 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 1 minute ...

Page 108: ... During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 109: ...s During startup and operation of cooling and heating the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 110: ... During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 111: ...ng operation of cooling and heating when the PFC protection circuitry in the outdoor unit PCB main senses abnormal high DC voltage level Malfunction Caused 1 Power supply surge 2 Compressor windings not uniform 3 Faulty outdoor unit PCB main Abnormality Judgment Continue 4 times in 10 minutes ...

Page 112: ... During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 113: ... During startup and operation of cooling and heating the temperatures detected by the outdoor defrost temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 114: ... During startup and operation of cooling and heating the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor errors Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Page 115: ...r CT open circuit is detected by checking the compressor running frequency rated frequency and CT detected input current 0 65A for continuously 20 seconds Malfunction Caused 1 CT defective 2 Faulty outdoor unit PCB main 3 Compressor defective low compression Abnormality Judgment Continue 3 times in 20 seconds ...

Page 116: ... above is detected by outdoor high pressure sensor Malfunction Caused 1 Dust accumulation in the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 2 way valve closed 4 Faulty outdoor unit fan motor 5 Clogged expansion valve or strainer 6 Excessive refrigerant 7 Faulty outdoor high pressure sensor 8 Faulty outdoor unit PCB main ...

Page 117: ...itor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks WARNING Be sure to switch off all the power supply before performing each of the below action 17 1 To Remove The Cabinet Front Plate 17 2 To Remove The Cabinet Top Plate ...

Page 118: ...118 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...

Page 119: ...119 17 6 To Remove Transformer and Electronic Controller Board 17 7 To Remove Pressure Relief Valve and Air Purge Valve When reinstall the water pipe use grease or water at the joining ...

Page 120: ...120 17 8 To Remove Flow Switch When reinstall the water pipe use grease or water at the joining 17 9 To Remove Water Pump When reinstall the water pipe use grease or water at the joining ...

Page 121: ...121 17 10To Remove Bottle Complete When reinstall the water pipe use grease or water at the joining ...

Page 122: ...n Characteristics 18 1 1 WH MDC09C3E8 WH MDC09C3E8 1 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 ...

Page 123: ...123 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 ...

Page 124: ... WH MDC12C9E8 WH MDC12C9E8 1 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 ...

Page 125: ...125 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 ...

Page 126: ... WH MDC14C9E8 WH MDC14C9E8 1 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 ...

Page 127: ...127 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 ...

Page 128: ... WH MDC16C9E8 WH MDC16C9E8 1 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 ...

Page 129: ...129 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 ...

Page 130: ...ting Capacity kW IP Power Input kW LWC Leaving Water Condenser Temperature C Tamb Ambient Temperature C 18 2 3 WH MDC14C9E8 WH MDC14C9E8 1 LWC 30 35 40 45 50 55 Tamb HC IP HC IP HC IP HC IP HC IP HC IP 15 9 90 3 91 9 50 4 05 9 00 4 19 8 60 4 33 7 90 4 45 7 30 4 56 7 11 10 3 73 10 70 4 00 10 20 4 20 9 80 4 40 9 10 4 57 8 50 4 74 2 12 90 3 51 12 40 3 73 11 90 3 95 11 40 4 17 10 40 4 29 9 50 4 40 7 1...

Page 131: ... 3 15 15 50 3 15 35 10 00 3 60 11 60 3 70 12 50 3 75 OD Ambient 43 7 60 3 95 8 75 3 11 9 42 3 08 18 3 3 WH MDC14C9E8 WH MDC14C9E8 1 Water In 12 19 23 Water Out 7 14 18 C Q IP Q IP Q IP 18 8 85 1 50 10 3 1 65 11 70 1 65 25 10 00 2 68 16 2 3 78 17 10 3 80 35 11 50 4 40 12 78 4 40 13 50 4 40 OD Ambient 43 9 05 5 01 8 50 3 09 9 38 3 09 18 3 4 WH MDC16C9E8 WH MDC16C9E8 1 Water In 12 19 23 Water Out 7 1...

Page 132: ...132 19 Exploded View and Replacement Parts List 19 1 WH MDC09C3E8 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC09C3E8 1 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 Refrigerant System ...

Page 133: ...133 ...

Page 134: ...134 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 135: ...P DISCHARGE 1 CWA50C2576 27 SENSOR COMPLETE 1 CWA50C2629 27a SENSOR COMP DEF 1 CWA50C2577 28 CABINET REAR PLATE COMPLETE 1 CWE02K1019A 29 CONTROL BOARD CASING 1 CWH10K1049 31 TERMINAL BOARD ASS Y 1 CWA28K1214 38 ELECTRONIC CONTROLLER NOISE FILTER 1 CWA745822 O 44 ELECTRONIC CONTROLLER MAIN 1 CWA73C6782R CWA73C6783R CWA73C6784R CWA73C6785R O 46 REACTOR 3 G0C293J00001 48 TERMINAL COVER 1 CWH171039A ...

Page 136: ...C9E8 WH MDC16C9E8 1 REMARKS 74 REACTOR 3 G0C153J00009 75 ACCESSORY CO DRAIN ELBOW 1 CWG87C2030 76 PTC THERMISTOR 1 D4DDG1010001 78 SOUND PROOF MATERIAL 1 CWG302599 79 CRANKCASE HEATER BASE PAN 1 CWA341071 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 137: ...137 19 2 WH MDC09C3E8 WH MDC12C9E8 WH MDC14C9E8 WH MDC16C9E8 WH MDC09C3E8 1 WH MDC12C9E8 1 WH MDC14C9E8 1 WH MDC16C9E8 1 Water System ...

Page 138: ...138 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 139: ...27 ELECTRO MAGNETIC SWITCH 1 K6C1AYY00004 O 28 TERMINAL BOARD ASS Y 1 CWA28K1222 29 CIRCUIT BREAKER 1 CWA181005 O 30 TRANSFORMER COMPLETE 1 CWA40C1096 O 31 SENSOR COMPLETE 1 CWA50C2749 O 32 REMOTE CONTROL COMPLETE 1 CWA75C4020 O 33 PRESSURE GAUGE 1 CWB070001 O 34 PRESSURE RELIEF VALVE 1 CWB621092 O 35 PRESSURE RELIEF VALVE 1 CWB621094 36 TERMINAL BOARD ASS Y 1 CWA28K1232 39 OPERATING INSTRUCTION 1...

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