Panasonic WH-MXF09D3E8 Service Manual Download Page 108

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108

16.5.33 Outdoor Current Transformer Open Circuit (F46)

Malfunction Decision Conditions:

A current transformer (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.
3 Compressor defective (low compression).

Abnormality Judgment:

Continue 3 times in 20 seconds.

Summary of Contents for WH-MXF09D3E8

Page 1: ... 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 product or products dealt with in this service information by anyone else could result in serious injury or death PRECAUT...

Page 2: ...trol 59 12 13 Sterillization Mode 60 12 14 Quiet Operation 60 12 15 Anti Freeze Control 60 12 16 Solar Operation Optional 61 12 17 External Room Thermostat Control Optional 64 13 Protection Control 65 13 1 Protection Control For All Operations 65 13 2 Protection Control for Heating Operation 67 14 Servicing Mode 68 14 1 Test Run 68 14 2 Proper Pump Down Procedure 68 14 3 How To Adjust Water Flow R...

Page 3: ...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 4: ...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 5: ...8 poles Input Power W Output Power W 60 Fan Speed rpm 490 Top Fan 530 Bottom Fan Heat Exchanger Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row x Stage x FPI 2 x 51 x 18 Size W x H x L mm 881 5 x 1295 4 x 44 Item Unit Mono bloc Unit Dimension Height mm inch 1410 55 1 2 Width mm inch 1283 50 1 2 Depth mm inch 320 12 19 32 Net Weight kg lbs 159 351 Noise Level dB A 49 Power Level dB 66 P...

Page 6: ...ch 15 00 19 32 Pump Motor Type Capacitor Run Induction Motor 5 µF No of Speed 3 Input Power W 180 Hot Water Coil Type Brazed Plate No of Plates 60 Size W x H x L mm 93 x 100 x 325 Water Flow Rate l min m 3 h 25 8 1 6 Pressure Relief Valve Water Circuit kPa Open 300 Close 265 and below Flow Switch Magnetic Lead Switch Protection Device A Residual Current Circuit Breaker 40 Expansion Vessel Volume I...

Page 7: ...utput Power W 60 Fan Speed rpm 510 Top Fan 550 Bottom Fan Heat Exchanger Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row x Stage x FPI 2 x 51 x 18 Size W x H x L mm 881 5 x 1295 4 x 44 Item Unit Mono bloc Unit Dimension Height mm inch 1410 55 1 2 Width mm inch 1283 50 1 2 Depth mm inch 320 12 19 32 Net Weight kg lbs 159 351 Noise Level dB A 50 Power Level dB 67 Power Source Phase Volta...

Page 8: ... 19 32 Pump Motor Type Capacitor Run Induction Motor 5 µF No of Speed 3 Input Power W 180 Hot Water Coil Type Brazed Plate No of Plates 60 Size W x H x L mm 100 x 93 x 325 Water Flow Rate l min m 3 h 34 4 2 1 Pressure Relief Valve Water Circuit kPa Open 300 Close 265 and below Flow Switch Magnetic Lead Switch Protection Device A Residual Current Circuit Breaker 40 Expansion Vessel Volume I 10 MWP ...

Page 9: ...everse cycle o Inner protector to protect compressor Serviceability Improvement o Breakdown Self Diagnosis function o System Status Check Buttons for servicing purpose o System Service Mode Button for servicing purpose o Front maintenance design for Mono bloc unit Operation Condition Water outlet temperature C Ambient temperature C Maximum 55 35 HEATING Minimum 25 20 NOTICE When the outdoor temper...

Page 10: ...10 4 Location of Controls and Components 4 1 Mono bloc Unit ...

Page 11: ...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 12: ... Control 4 1 2 1 Remote Control Some functions described in this manual may not be applicable to your unit Consult your nearest authorized dealer for further information For normal operation the and buttons are not in use ...

Page 13: ...13 ...

Page 14: ...on you can manually adjust the settings The initial setting remains active until the user changes it The remote control can be used for multiple installations Some functions may not be applicable to your unit Ensure the operation LED is in OFF condition before setting ...

Page 15: ...15 4 1 4 Basic Operation 4 1 5 Advance Operation ...

Page 16: ...16 4 1 6 Weekly Timer Setting ...

Page 17: ...17 5 Dimensions 5 1 Mono bloc Unit ...

Page 18: ...18 6 Refrigeration And Water Cycle Diagram ...

Page 19: ...19 ...

Page 20: ...2 RY HT L3 3 WAYS VALVE SOLAR 3 WAYS VALVE M S 3 M 1 M 1 NOISE FILTER NOISE FI LTER RECTIFIC ATION CIRCUI T RECTIFIC ATION CIRCUI T RECTIFIC ATION CIRCUI T NOISE FILTER NOISE FILTER NOISE FILTER L2 L3 N RCCB RELAY RELAY PTC REACTOR REACTOR CAPACITOR POWER SUPP LY 2 Single phase AC230V 50Hz L N RY V201 RY PWR2 RY HT1 HE ATER HE ATER 4 W AY VALVE RY HT2 RY HO T FUSE201 FUSE202 FUSE203 M 1 1 2 3 4 5 ...

Page 21: ...YS VALVE M S 3 M 1 M 1 NOISE FILTER NOISE FI LTER RECTIFIC ATION CIRCUI T RECTIFIC ATION CIRCUI T RECTIFIC ATION CIRCUI T NOISE FILTER NOISE FILTER L2 L3 N RCCB POWER SUPP LY 3 3 phase AC400V 50Hz RELAY RELAY PTC REACTOR REACTOR CAPACITOR L1 L2 L3 N RY V201 RY PWR2 RY HT1 HE ATER HE ATER 4 W AY VA LVE RY HT2 RY HO T FUSE201 M 1 1 2 3 4 5 NOISE FILTER RCCB POWER SUPP LY 2 Single phase AC230V 50Hz L...

Page 22: ...22 8 Wiring Connection Diagram 8 1 WH MXF09D3E8 WH MXF09D3E8 1 ...

Page 23: ... BLK02 BLACK AC WHT02 WHITE CN TANK WHITE CN DIS WHITE CN TH1 WHITE CN TH2 BLUE CN TH3 BLACK CN EV1 WHITE CN EV2 YELLOW CN PSW1 BLUE COM3 RED CN HOT BLUE CN HPS RED L3 IN BLACK L3 OUT ORANGE L2 IN YELLOW L2 OUT GRAY N IN WHITE CN RY1 WHITE L3 P1 ORANGE REACTOR CAPACITOR CAPACITOR CAPACITOR REACTOR REACTOR REACTOR REACTOR REACTOR PTC L2 P1 WHITE L1 P1 BLACK L1 P2 RED L1 L RED L2 L BLUE L2 P2 BLUE L...

Page 24: ...24 8 2 WH MXF12D9E8 WH MXF12D9E8 1 ...

Page 25: ... BLK02 BLACK AC WHT02 WHITE CN TANK WHITE CN DIS WHITE CN TH1 WHITE CN TH2 BLUE CN TH3 BLACK CN EV1 WHITE CN EV2 YELLOW CN PSW1 BLUE COM3 RED CN HOT BLUE CN HPS RED L3 IN BLACK L3 OUT ORANGE L2 IN YELLOW L2 OUT GRAY N IN WHITE CN RY1 WHITE L3 P1 ORANGE REACTOR CAPACITOR CAPACITOR CAPACITOR REACTOR REACTOR REACTOR REACTOR REACTOR PTC L2 P1 WHITE L1 P1 BLACK L1 P2 RED L1 L RED L2 L BLUE L2 P2 BLUE L...

Page 26: ...26 9 Electronic Circuit Diagram 9 1 WH MXF09D3E8 WH MXF09D3E8 1 ...

Page 27: ... C167 1000p 50V C213 1u 16V R356 1k 1 2 3 4 C169 DISCHARGE TEMP SENSOR THERMISTOR CN DIS WHITE 1 2 t O C47 1u 6 3V R102 4 99k 1 5V COMPRESSOR TANK TEMP SENSOR THERMISTOR CN TANK WHITE 3 1 t O C175 1u 6 3V R363 4 99k 1 5V CN TH1 WHITE OUTDOOR AIR OUTLET TEMP SENSOR THERMISTOR OUTDOOR PIPE COND TEMP SENSOR THERMISTOR 1 4 t O t O C46 1u 6 3V C45 1u 6 3V R100 15 0k 1 R101 7 50k 1 5V DEFROST TEMP SENSO...

Page 28: ...28 9 2 WH MXF12D9E8 WH MXF12D9E8 1 ...

Page 29: ... C167 1000p 50V C213 1u 16V R356 1k 1 2 3 4 C169 DISCHARGE TEMP SENSOR THERMISTOR CN DIS WHITE 1 2 t O C47 1u 6 3V R102 4 99k 1 5V COMPRESSOR TANK TEMP SENSOR THERMISTOR CN TANK WHITE 3 1 t O C175 1u 6 3V R363 4 99k 1 5V CN TH1 WHITE OUTDOOR AIR OUTLET TEMP SENSOR THERMISTOR OUTDOOR PIPE COND TEMP SENSOR THERMISTOR 1 4 t O t O C46 1u 6 3V C45 1u 6 3V R100 15 0k 1 R101 7 50k 1 5V DEFROST TEMP SENSO...

Page 30: ...30 10 Printed Circuit Board 10 1 Water System 10 1 1 Main Printed Circuit Board ...

Page 31: ...31 10 1 2 Solar Printed Circuit Board Optional ...

Page 32: ...32 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board CN PSW1 CN FM2 CN FM1 CN TH3 CN HPS CN HT2 CN HT1 CN HOT CN EV2 CN EV1 CN TH1 CN TANK CN DIS ...

Page 33: ...33 10 2 2 Noise Filter Printed Circuit Board ...

Page 34: ...34 11 Installation Instruction Mono bloc Unit Dimension Diagram ...

Page 35: ...35 Main Components ...

Page 36: ...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 37: ...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 38: ...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 39: ...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 40: ... 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 41: ... 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 42: ... illustration at below 6 Insert firmly the connector of remote control cable 2 to connector CON1 in the upper case circuit board Refer to the illustration at below 7 Secure the remote control upper case to the lower case with the tabs provided 11 4 3 3 Connecting The Remote Control Cable To Mono bloc Unit WARNING Be sure to turn off the main power before installing and connecting the remote contro...

Page 43: ...n 50mm o Cover the 8 holes ø20mm with Rubber cap refer to illustration below o Use a tray field supply when necessary to dispose the Mono bloc unit drain water If the unit is used in an area where temperature falls below 0 C for 2 or 3 consecutive days it is recommended not to use the Drain elbow and Rubber cap for the drain water freezes and the fan will not rotate ...

Page 44: ...tlet 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 triggered 3 C 12 1 3 Tank Mode Operation Control contents 3 ways valve direction 3 ways valve switch and fix to tank side Heat pump Thermostat characteristic Water set temperature Tan...

Page 45: ...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 closes Others Indoor backup heater cannot be ON during tank mode only ...

Page 46: ...46 ...

Page 47: ...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 48: ... 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 contin...

Page 49: ...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 50: ...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 51: ...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...

Page 52: ...52 ...

Page 53: ...53 ...

Page 54: ...t pump provide heating capacity to room side by hot water through heating panel floor or fan coil 1 3 ways valve control o 3 ways valve switch and fix to heating side 2 Heat pump operate follow normal heating operation 3 Backup heater operate follow normal operation 4 Solar 3 way valve operates follow solar operation specification 5 2 way valve opens 12 1 6 Water Temperature Thermo Shift Setting S...

Page 55: ...er flow level is detected low continuously for 10 secs the water pump and compressor will be OFF permanently and OFF ON remote control LED will blink H62 error occurs When error happen the power has to be reset to clear the error If there is no error indication the water pump shall be continuously running The water pump will remain ON when compressor OFF due to thermostat OFF setting is reached 12...

Page 56: ...to room side 5 Press the ON OFF button to stop the unit 12 4 Flow Switch 12 4 1 Flow Switch Control 1 The water flow switch serve as an overload protector that shuts down the unit when the water level is detected to be low 2 Detection is Lo 0V when there is no water flow and detection is Hi 5V when there is water flow 12 5 Force Heater Mode Operation The backup heater also serves as backup in case...

Page 57: ...ode If the water inlet temperature exceeds 80 C for continuously 10 seconds the water pump will be OFF immediately 3 After water pump OFF for more than 10 minutes it will be ON back and the indoor unit safety control checking is restarted 12 7 Auto Restart Control When the power supply is cut off during the operation of Mono Bloc unit the compressor will re operate after power supply resumes 12 8 ...

Page 58: ...itch is Off OR d Heat pump 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 c 20 minutes since previous Backup heater Off o Heater Stop condition a Force mode off OR b When water outlet temperature water set temperature 2 C for continuous 15 secs Do not operate heater at the following s...

Page 59: ... heater will continue ON for 10 minutes after deice operation ends Base pan heater OFF condition o When outdoor ambient temperature 3 C OR o When operation is not heating OR o Base pan heater ON timer count completed 12 12 Three Way Valve Control Purpose 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side Control contents 1 3 ways valve swit...

Page 60: ...ration by reduces mono bloc unit noise Starting condition 1 When quiet button is presses 2 When quiet request ON time by weekly timer Refer to remote control When any of above mentioned condition is achieved this control is activated New target FM speed Present target FM speed 80 rpm Minimum target FM speed 200 rpm Cancellation condition 1 Cancel by press quiet button 2 Stop by OFF ON button 3 Whe...

Page 61: ... the Solar pump 3 Way Valve is requested ON Refer to figure below 12 16 2 Solar Operation Control When solar priority is SET 1 Operation condition a 3 way valve operates if all of the following conditions are fulfilled Power On regardless operation ON or OFF There is operation request from solar pump station Tank hot water temp is below solar on upper limit temp 72 C 2 Stop condition a 3 way valve...

Page 62: ...rating when No power supply to unit OR There is NO operation request from solar pump station OR Tank hot water temp is above solar off upper limit temp 80 C Heat pump thermo ON and operate to tank side during operation ON and tank mode selected ...

Page 63: ...63 ...

Page 64: ...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 65: ...ll 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 33 4 5A for MXF09 MXF12 compressor will stop Compressor will restart after three minutes 2 If the set value...

Page 66: ...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 67: ... 13 2 Protection Control for Heating 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 protecti...

Page 68: ...ter 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 ...

Page 69: ... 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 70: ...l water filter in regularly basic 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 Use spanner to detach the tube connector nut Take out the filter carefully so that not deforms it shape Use tap water only to wash the residue on the filter If necessary gently use soft brush only to clean...

Page 71: ...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 72: ...on Water leakage or insufficient water flow rate in the system Ò Ò Ò Excessive amount of refrigerant Ò Ò Ò Inefficient compression Ò Ô Ô Insufficient refrigerant gas leakage Ô Ô Ô Mono bloc unit refrigerant system heat exchange deficiency Ô Ô Ô Clogged expansion valve or Strainer Ô Ò Ò Carry out the measurements of pressure electric current and temperature fifteen minutes after an operation is sta...

Page 73: ...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 74: ...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 75: ...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 76: ...up operation of 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 77: ...tions During startup and operation of 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 78: ...itions During startup and operation of 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 79: ...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 80: ...d 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 81: ...ecision Conditions During operation of heating when the outdoor low 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 82: ...ecision Conditions During operation of 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 83: ...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 84: ...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 85: ...mmunication Abnormality H76 Malfunction Decision Conditions During standby and operation of heating indoor remote control error occur Malfunction Caused 1 Faulty connector connection 2 Faulty remote control 3 Faulty indoor unit PCB main ...

Page 86: ...al 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 minute a...

Page 87: ...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 88: ...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 89: ...ssure 4 0 MPa 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 90: ...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 91: ...ion 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 minutes ...

Page 92: ...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 93: ... 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 30...

Page 94: ...n Conditions During operation of heating when outdoor current above 27 9A 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 95: ... 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 96: ...sion Conditions During operation of 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 97: ...ation of 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 98: ...uring 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 compressor Abnormality Judgment Continue 2 times in 20 minute...

Page 99: ...During heating operation when the indoor pipe temperature of thermostat ON indoor unit 0 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 100: ...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 101: ...itions During startup and operation of 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 102: ...ditions During startup and operation of 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 103: ...itions During startup and operation of 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 104: ...s During operation of 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 105: ...itions During startup and operation of 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 106: ...itions During startup and operation of 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 107: ...itions During startup and operation of 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 108: ...rmer 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 3 Compressor defective low compression Abnormality Judgment Continue 3 times in 20 seconds ...

Page 109: ... 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 110: ...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 111: ...111 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...

Page 112: ...WHT CN PUMP1 GRN CN RCV WHT CN V3 GRN CN FLOW YLW CN REMOTE WHT CN THERMO WHT DATA RED G02 GRN AC3 L1 BLK G01 GRN G04 GRN AC2 L3 BLK HT1 L2 ORG HT1 L3 RED CN OLP1 WHT and CN HT WHT from the 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 113: ...113 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 114: ...114 17 10 To Remove Bottle Complete When reinstall the water pipe use grease or water at the joining ...

Page 115: ...rature 30 C o Indoor water outlet temperature 35 C Input Power kW Outdoor Air Temperature o C 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 8 500 9 000 9 500 10 000 1 700 1 900 2 100 2 300 2 500 2 700 2 900 3 100 3 300 3 500 3 700 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Capacity kW Outdoor Air Temperature o C 10 500 11 000 11 500 12 000 12 500 13 000 13 500 14 000 ...

Page 116: ...ndoor water outlet temperature 35 C Input Power kW Capacity kW Outdoor Air Temperature o C Outdoor Air Temperature o C 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 13 000 13 500 14 000 1 750 2 250 2 750 3 250 3 750 4 250 4 750 5 250 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 ...

Page 117: ...9000 2880 9000 3100 25 13600 1540 13600 1750 13200 1970 12800 2180 12000 2450 11200 2710 18 2 2 WH MXF12D9E8 WH MXF12D9E8 1 Water Out 30 35 40 45 50 55 Outdoor Air Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power 15 12000 4790 12000 5000 12000 5450 12000 5900 11500 6280 11100 6660 7 12000 3890 12000 4450 12000 5020 12000 ...

Page 118: ...118 19 Exploded View and Replacement Parts List 19 1 Refrigerant System ...

Page 119: ...119 ...

Page 120: ...120 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 121: ...SENSOR COMP 1 CWA50C2577 O 28 CABINET REAR PLATE COMPLETE 1 CWE02K1019A 29 CONTROL BOARD CASING 1 CWH10K1049 31 TERMINAL BOARD ASS Y 1 CWA28K1214 O 38 ELECTRONIC CONTROLLER NOISE FILTER 1 CWA745822 O 44 ELECTRONIC CONTROLLER MAIN 1 CWA73C5787R CWA73C5788R O 46 REACTOR 3 G0C293J00001 O 48 TERMINAL COVER 1 CWH171039A 49 NUT TERMINAL COVER 1 CWH7080300J 50 FAN MOTOR BRACKET 1 CWD54K1024 50a SCREW FAN...

Page 122: ...ND PROOF MATERIAL 1 CWG302599 82 ELECTRO MAGNETIC SWITCH 1 K6C2AGA00002 O 83 ELECTRO MAGNETIC SWITCH 1 K6C4E8A00001 O 84 REACTOR 3 G0C153J00009 O 85 PTC THERMISTORS 1 D4DDG1010001 O 86 CAPACITOR REACTOR 3 DS441205NPQA Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock ...

Page 123: ...123 19 2 Water System ...

Page 124: ...124 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 125: ... O 29 CIRCUIT BREAKER 2 CWA181008 O 29a CIRCUIT BREAKER 1 CWA181005 O 30 TRANSFORMER COMPLETE 1 CWA40C1096 O 31 SENSOR COMPLETE 1 CWA50C2749 O 32 REMOTE CONTROL COMPLETE 1 CWA75C4024 O 33 PRESSURE GAUGE 1 CWB070001 O 34 PRESSURE RELIEF VALVE 1 CWB621092 35 PRESSURE RELIEF VALVE 1 CWB621094 36 TERMINAL BOARD ASS Y 1 CWA28K1232 38 OPERATING INSTRUCTION 1 CWF568655 39 OPERATING INSTRUCTION 1 CWF56866...

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Panasonic WH-MXF09D3E8, Service Manual

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