![Panasonic WH-MXF12D3E8 [88/118] 9 compressor overheating f20](/img/pdf.png)
Panasonic WH-MXF12D3E8 [88/118] 9 compressor overheating f20
![Panasonic WH-MXF12D3E8 [88/118] 9 compressor overheating f20](/views2/1832911/page88/bg58.png)
88
16.5.19 Compressor Overheating (F20)
Malfunction Decision Conditions:
During operation of cooling and heating, when temperature above 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.
Содержание
- Table of contents 2
- Carry out test run to confirm that no abnormality occurs after the servicing then explain to user the operation care and maintenance as stated in instructions please remind the customer to keep the operating instructions for future reference 3
- Caution 3
- Read the following safety precautions carefully before perform any servicing for mono bloc air to water heatpump system here after referred to as mono bloc unit electrical work and water installation work must be installed or serviced by a licensed electrician and licensed water system installer respectively be sure to use the correct rating and main circuit for the model installed the caution items stated here must be followed because these important contents are related to safety the meaning of each indication used is as below incorrect installation or servicing due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications 3
- Safety precautions 3
- The items to be followed are classified by the symbols 3
- Warning 3
- Caution 4
- Warning 4
- Specifications 5
- Wh mxf09d3e8 5
- Wh mxf12d9e8 7
- Features 9
- Location of controls and components 10
- Mono bloc unit 10
- Main components 11
- Setting up the special functions 14
- Weekly timer setting 16
- Dimensions 17
- Mono bloc unit 17
- Refrigeration and water cycle diagram 18
- Block diagram 20
- Water system refrigerant system 20
- Wh mxf09d3e8 20
- Water system refrigerant system 21
- Wh mxf12d9e8 21
- Communication circuit 23
- Noise filter circuit 23
- Rectification circuit 23
- Rectification circuit switching power supply circuit 23
- Communication circuit 25
- Noise filter circuit 25
- Rectification circuit 25
- Rectification circuit switching power supply circuit 25
- Base pan heater 27
- Communication circuit 27
- Compressor crankcase heater 27
- Electro magnetic coil 4 way valve 27
- High pressure sensor 27
- L1 l red 27
- L1 p1 black 27
- L1 p2 red 27
- L2 l blue 27
- L2 p1 white 27
- L2 p2 blue 27
- L3 l yellow 27
- L3 p1 orange 27
- L3 p2 yellow 27
- Noise filter circuit 27
- Reactor 27
- Rectification circuit 27
- Switching power supply circuit 27
- Yellow 27
- Base pan heater 29
- Communication circuit 29
- Compressor crankcase heater 29
- Electro magnetic coil 4 way valve 29
- High pressure sensor 29
- L1 l red 29
- L1 p1 black 29
- L1 p2 red 29
- L2 l blue 29
- L2 p1 white 29
- L2 p2 blue 29
- L3 l yellow 29
- L3 p1 orange 29
- L3 p2 yellow 29
- Noise filter circuit 29
- Reactor 29
- Rectification circuit 29
- Switching power supply circuit 29
- Yellow 29
- Main printed circuit board 30
- Printed circuit board 30
- Water system 30
- Solar printed circuit board optional 31
- Noise filter printed circuit board 33
- Mono bloc unit installation 36
- Select the best location 36
- Connect the cord and cable to mono bloc unit 38
- Disposal of mono bloc unit drain water 43
- Basic function 44
- Heating operation 44
- Operation control 44
- Tank mode operation 44
- Thermostat control 44
- Fan motor operation 50
- Water temperature thermo shift setting 50
- Back up heater control 53
- Electric heater control 53
- Indication panel 53
- Quiet operation 54
- Sterilization mode 54
- Tank booster heater control 54
- Three way valve control 54
- 30 seconds forced operation 59
- Compressor overheating prevention control 59
- Ipm power transistor prevention control 59
- Protection control 59
- Protection control for all operations 59
- Time delay safety control 59
- Total running current control 59
- 0 crank case heater control 60
- High pressure sensor control 60
- Low frequency protection control 1 60
- Low frequency protection control 2 60
- Outside temperature current control 60
- Deice operation 61
- Outdoor air temperature control 61
- Protection control for heating operation 61
- 10 20 30 40 50 60 70 62
- 10 20 30 40 50 60 70 80 90 62
- Expansion vessel pre pressure checking 62
- External static pressure kpa 62
- How to adjust water flow rate 62
- Proper pump down procedure 62
- Pump speed 3 pump speed 2 pump speed 1 62
- Servicing mode 62
- Test run 62
- Water flow rate l min 62
- After press test button 63
- Conditionof rccb functionnormal 63
- How to check 63
- Maintenance guide 63
- Pressure relief valve 63
- Refrigeration cycle system 65
- Troubleshooting guide 65
- Relationship between the condition of the mono bloc unit and pressure and electric current 66
- Error codes table 68
- Connection capability rank abnormality h12 70
- Self diagnosis method 70
- Compressor tank temperature sensor abnormality h15 71
- Indoor refrigerant liquid temperature sensor abnormality h23 72
- Compressor low pressure protection h42 73
- Water flow switch abnormality h62 74
- Outdoor high pressure abnormality h64 75
- Indoor backup heater olp abnormality h70 76
- Tank temperature sensor abnormality h72 77
- Indoor control panel communication abnormality h76 78
- 0 indoor outdoor abnormal communication h90 79
- 1 tank booster heater olp abnormality h91 80
- 2 unspecified voltage between indoor and outdoor h95 81
- 3 outdoor high pressure protection h98 82
- 4 indoor freeze up protection h99 83
- 5 outdoor high pressure switch activate f12 84
- 6 compressor rotation failure f14 85
- 7 outdoor fan motor dc motor mechanism locked f15 86
- 8 input over current detection f16 87
- 9 compressor overheating f20 88
- 0 ipm overheating f22 89
- 1 output over current detection f23 90
- 2 refrigeration cycle abnormality f24 91
- 3 four way valve abnormality f25 92
- 4 outdoor high pressure switch abnormal f27 93
- 5 outdoor air temperature sensor abnormality f36 94
- 6 indoor water inlet temperature sensor abnormality f37 95
- 7 outdoor discharge pipe temperature sensor abnormality f40 96
- 8 power factor correction pfc abnormality f41 97
- 9 outdoor pipe temperature sensor abnormality f42 98
- 0 outdoor defrost temperature sensor abnormality f43 99
- 1 indoor water outlet temperature sensor abnormality f45 100
- 2 outdoor current transformer open circuit f46 101
- 3 cooling high pressure overload protection f95 102
- Disassembly and assembly instructions 103
- To remove the cabinet front plate 103
- To remove the cabinet top plate 103
- To remove pressure gauge 104
- To remove rccb 104
- To remove the cabinet rear plate 104
- To remove pressure relief valve 105
- To remove transformer and electronic controller board 105
- To remove flow switch 106
- To remove water pump 106
- To remove bottle complete 107
- Heating characteristics at different outdoor air temperature condition o indoor water inlet temperature 30 c o indoor water outlet temperature 35 c 108
- Operation characteristics 108
- Technical data 108
- Wh mxf09d3e8 108
- Heating characteristics at different outdoor air temperature condition o indoor water inlet temperature 30 c o indoor water outlet temperature 35 c 109
- Wh mxf12d9e8 109
- External static pressure kpa 110
- Heating capacity table 110
- Hydraulic pump performance 110
- Pump speed 3 pump speed 2 pump speed 1 110
- Water flow rate l min 110
- Wh mxf09d3e8 110
- Wh mxf12d9e8 110
- Exploded view and replacement parts list 111
- Refrigerant system 111
- Note all parts are supplied from phaam malaysia vendor code 00029488 o marked parts are recommended to be kept in stock printed in malaysia sb0811 0 118
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