![Panasonic CU-HE12NKE [83/110] 4 f91 refrigeration cycle abnormality](/img/pdf.png)
Panasonic CU-HE12NKE [83/110] 4 f91 refrigeration cycle abnormality
![Panasonic CU-HE9NKE [83/110] 4 f91 refrigeration cycle abnormality](/views2/1834018/page83/bg53.png)
83
15.4.24 F91 (Refrigeration Cycle Abnormality)
Malfunction Decision Conditions
• During cooling, compressor frequency = Fcmax.
• During heating, compressor frequency > Fhrated.
• During cooling and heating operation, running current: 0.65A < I < 1.65A.
• During cooling, indoor intake - indoor pipe < 4°C.
• During heating, indoor pipe - indoor intake < 5°C.
Multi Models Only
o Gas shortage detection 1: A gas shortage is detected by checking the CT-detected input current value and
the compressor running frequency. During startup and operating of cooling and heating, input current <
8.78/256 (A/Hz) × compressor running frequency + 0.25.
o Gas shortage detection 2: A gas shortage is detected by checking the difference between indoor pipe
temperature and indoor intake air temperature during cooling and heating.
Malfunction Caused
• Refrigerant shortage (refrigerant leakage)
• Poor compression performance of compressor
• 2/3 way valve closed
• Detection error due to faulty indoor intake air or indoor pipe temperature sensors.
Troubleshooting
Содержание
- Cs he9nke cs he12nke cs ae9nke 1
- Cu he9nke cu he12nke cu ae9nke 1
- Indoor unit outdoor unit 1
- Table of contents table of contents 1
- 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 electrical work must be installed or serviced by a licensed electrician be sure to use the correct rating of the power plug 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
- Specification 5
- Features 11
- Indoor unit 12
- Location of controls and components 12
- Outdoor unit 12
- Remote control 12
- Dimensions 13
- Indoor unit 13
- Outdoor unit 14
- Refrigeration cycle diagram 15
- Block diagram 16
- Indoor unit 17
- Wiring connection diagram 17
- Outdoor unit 18
- Electronic circuit diagram 19
- Indoor unit 19
- Outdoor unit 20
- Indicator printed circuit board 21
- Indoor unit 21
- Main printed circuit board 21
- Printed circuit board 21
- High voltage power supply printed circuit board 22
- Receiver printed circuit board 22
- Main printed circuit board 23
- Outdoor unit 23
- Indoor outdoor unit installation diagram 24
- Indoor unit 24
- Installation instruction 24
- Outdoor unit 24
- Select the best location 24
- How to fix installation plate 25
- Indoor unit 25
- To drill a hole in the wall and install a sleeve of piping 25
- Connect the cable to the indoor unit 27
- Wire stripping connecting requirement 28
- Connect the piping 30
- Connecting the piping to indoor 30
- Connecting the piping to outdoor 30
- Install the outdoor unit 30
- Outdoor unit 30
- Evacuation of the equipment 31
- Connect the cable to the outdoor unit 32
- Cutting and flaring the piping 32
- Outdoor unit drain water 32
- Piping insulation 32
- Basic function 33
- Cooling operation 33
- Heating operation 33
- Internal setting temperature 33
- Operation and control 33
- Soft dry operation 33
- Thermostat control 33
- Automatic operation 34
- Fan operation 34
- Indoor fan motor operation 34
- Airflow direction 35
- Outdoor fan motor operation 35
- Automatic horizontal airflow direction can be set using remote control the vane swings left and right within the angles as stated below for heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as figure 1 below it does not swing during fan motor stop 36
- Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above for heating mode operation the angle of the vane depands on the indoor heat exchanger temperature as figure 1 below it does not swing during fan motor stop when the air conditioner is stopped using remote control the vane will shift to close position 2 manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as figure 2 below when the air conditioner is stopped using remote control the vane will shift to close position 36
- Horizontal airflow 36
- Vertical airflow 36
- Quiet operation cooling mode cooling area of dry mode 37
- Quiet operation heating 37
- Auto restart control 38
- Off timer control 38
- On timer control 38
- Powerful mode operation 38
- Timer control 38
- Indication panel 39
- Nanoe g operation 40
- Press continuously for 15s 41
- Remote control normal mode 41
- Transmit check code and after 2 seconds return to normal mode 41
- Transmit eco demo code and after 2 seconds return to normal mode 41
- Transmit sunlight sensor check code and after 2 seconds return to normal mode 41
- Econavi operation 43
- Judge ambient condition 43
- Judge sunlight intensity 43
- Sunlight intensity reset 43
- Sunlight sensor 43
- Temperature shift 43
- Default battery insert set to level 3 other than default display last set data 44
- Judge sunlight intensity 44
- Press and release within 10s 44
- Press timer 44
- Remote control normal mode 44
- Security level 1 less sensitive to sunlight intensity 44
- Security level 3 default sensitivity level 44
- Security level 5 more sensitive to sunlight intensity 44
- Set to level 1 44
- Set to level 2 44
- Set to level 4 44
- Set to level 5 44
- Transmit solar radiation level after 2 secs go back to normal mode 44
- Econavi is activated while it is cloudy night econavi is activated while it is sunny 45
- Judge ambient condition 45
- Press continuously for 15s 45
- Remote control normal mode 45
- Sunlight sensor check mode 45
- Temperature shift 45
- Transmit check code and after 2 seconds return to normal mode 45
- Transmit eco demo code and after 2 seconds return to normal mode 45
- Transmit sunlight sensor check code and after 2 seconds return to normal mode 45
- Sunlight sensor abnormality 46
- 8 10 c heat operation 47
- Ipm power transistor prevention control 48
- Protection control 48
- Protection control for all operations 48
- Restart control time delay safety control 48
- Total running current control 48
- Compressor overheating prevention control 49
- Low frequency protection control 1 49
- Low frequency protection control 2 49
- Low pressure prevention control gas leakage detection 49
- Cooling overload control 50
- Dew prevention control 1 50
- Freeze prevention control 1 50
- Freeze prevention control 2 50
- Outdoor air temperature control 50
- Protection control for cooling soft dry operation 50
- Dew prevention control 2 51
- Intake air temperature control 51
- Odor cut control 51
- Outdoor air temperature control 51
- Protection control for heating operation 51
- Cold draught prevention control 52
- Compressor oil return control 52
- Deice operation 52
- Overload protection control 52
- Auto off on button 53
- Servicing mode 53
- Remote control button 54
- Reset ac 54
- Reset rc 54
- Set button 54
- Refrigeration cycle system 55
- Troubleshooting guide 55
- Relationship between the condition of the air conditioner and pressure and electric current 56
- Breakdown self diagnosis function 57
- Self diagnosis function three digits alphanumeric code 57
- Temporary operation depending on breakdown status 57
- To clear memorized error protective operation status after repair 57
- To display memorized error protective operation status 57
- To make a diagnosis 57
- Error code table 58
- H11 indoor outdoor abnormal communication 60
- Self diagnosis method 60
- H12 indoor outdoor capacity rank mismatched 61
- H14 indoor intake air temperature sensor abnormality 62
- H15 compressor temperature sensor abnormality 63
- H16 outdoor current transformer open circuit 64
- H19 indoor fan motor dc motor mechanism locked 65
- H23 indoor pipe temperature sensor 1 abnormality 66
- H24 indoor pipe temperature sensor 2 abnormality 67
- H25 e ion air purifying system abnormal 68
- 0 h27 outdoor air temperature sensor abnormality 69
- 1 h28 outdoor pipe temperature sensor abnormality 70
- 2 h30 compressor discharge temperature sensor abnormality 71
- 3 h32 outdoor heat exchanger temperature sensor 2 abnormality 72
- 4 h33 unspecified voltage between indoor and outdoor 73
- 5 h34 outdoor heat sink temperature sensor abnormality 74
- 6 h36 outdoor gas pipe sensor abnormality 75
- 7 h37 outdoor liquid pipe temperature sensor abnormality 76
- 8 h97 outdoor fan motor dc motor mechanism locked 77
- 9 h98 indoor high pressure protection 78
- 0 h99 indoor freeze prevention protection cooling or soft dry 79
- 1 f11 4 way valve abnormality 80
- 2 f17 indoor standby units freezing abnormality 81
- 3 f90 power factor correction protection 82
- 4 f91 refrigeration cycle abnormality 83
- 5 f93 compressor rotation failure 84
- 6 f95 cooling high pressure abnormality 85
- 7 f96 ipm overheating 86
- 8 f97 compressor overheating 87
- 9 f98 input over current detection 88
- 0 f99 output over current detection 89
- Disassembly and assembly instructions 90
- Indoor electronic controllers cross flow fan and indoor fan motor removal procedures 90
- Indoor unit 90
- To remove electronic controller 90
- To remove front grille 90
- To remove discharge grille 91
- To remove control board 92
- To remove cross flow fan and indoor fan motor 92
- Outdoor electronic controller removal procedure 95
- Cu he9nke cu ae9nke 96
- Operation characteristics 96
- Technical data 96
- Cu he12nke 100
- Cu he12nke 104
- Cu he9nke cu ae9nke 104
- Sensible capacity chart 104
- Tc total cooling capacity kw shc sensible heat capacity kw ip input power kw indoor 27 c 19 c outdoor 35 c 24 c 104
- Exploded view and replacement parts list 105
- Indoor unit 105
- 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 105
- 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 108
- Outdoor unit 108
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