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Panasonic CS-CE9LKE / CU-CE9LKE [61/85] 6 f91 refrigeration cycle abnormality
![Panasonic CS-CE9LKE / CU-CE9LKE [61/85] 6 f91 refrigeration cycle abnormality](/views2/1833328/page61/bg3d.png)
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15.4.16. 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
- 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) x compressor
running frequency + 0.25.
- 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
• Faulty indoor intake air or pipe temperature sensor
• 2/3 way valve closed
• Refrigerant shortage (refrigerant leakage)
• Clogged expansion valve or strainer
• Faulty outdoor unit
• Poor compression of compressor
Troubleshooting
Содержание
- Air conditioner 1
- Indoor unit outdoor unit cs ce9lke cu ce9lke cs ce12lke cu ce12lke 1
- 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
- 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
- Specifications 5
- Features 11
- Location of controls and components 12
- Printed circuit board 21
- 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
- Indoor unit installation 25
- To drill a hole in the wall and install a sleeve of piping 25
- Connect the cable to the indoor unit 27
- After selecting the best location start installation according to indoor outdoor unit installation diagram 1 fix the unit on concrete or rigid frame firmly and horizontally by bolt nut ø10 mm 2 when installing at roof please consider strong wind and earthquake please fasten the installation stand firmly with bolt or nails 29
- Connect a charging hose with a push pin to the low side of a charging set and the service port of the 3 way valve be sure to connect the end of the charging hose with the push pin to the service port 2 connect the center hose of the charging set to a vacuum pump 3 turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmhg 0 mpa to 76 cmhg 0 mpa then evacuate the air approximately ten minutes 29
- Connect the piping 29
- Connecting the piping to indoor please make flare after inserting flare nut locate at joint portion of tube assembly onto the copper pipe in case of using long piping connect the piping align the center of piping and sufficiently tighten the flare nut with fingers further tighten the flare nut with torque wrench in specified torque as stated in the table 29
- Connecting the piping to outdoor decide piping length and then cut by using pipe cutter remove burrs from cut edge make flare after inserting the flare nut located at valve onto the copper pipe align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table 29
- Evacuation of the equipment 29
- Install the outdoor unit 29
- Outdoor unit 29
- When installing an air conditioner be sure to evacuate the air inside the indoor unit and pipes in the following procedure 29
- Connect the cable to the outdoor unit 30
- Pipe insulation 30
- Basic function 31
- Cooling operation 31
- Heating operation 31
- Internal setting temperature 31
- Operation and control 31
- Soft dry operation 31
- Thermostat control 31
- Automatic operation 32
- Fan operation 32
- Indoor fan motor operation 32
- Airflow direction 33
- 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 33
- B feedback control immediately after the fan motor started feedback control is performed once every second during fan motor on if fan motor feedback 2550 rpm or 50 rpm continue for 10 seconds then fan motor error counter increase fan motor is then stop and restart if the fan motor counter becomes 7 times then h19 fan motor error is detected operation stops and cannot on back 33
- Heating according to indoor pipe temperature automatic heating fan speed is determined as follows 33
- Outdoor fan motor is operated with 15 fan speed number of rotations it starts when compressor starts operation and it stops 30 seconds after compressor stops operation 33
- Outdoor fan motor operation 33
- There are two types of airflow vertical airflow directed by horizontal vane and horizontal airflow directed by vertical vanes 2 control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 33
- Vertical airflow 33
- Auto restart control 34
- Horizontal airflow 34
- Indication panel 34
- Off timer control 34
- On timer control 34
- Timer control 34
- 30 seconds forced operation 35
- Ipm power transistor prevention control 35
- Protection control 35
- Protection control for all operations 35
- Restart control time delay safety control 35
- Total running current control 35
- Compressor overheating prevention control 36
- Low frequency protection control 1 36
- Low frequency protection control 2 36
- Low pressure prevention control gas leakage detection 36
- Cooling overload control 37
- Dew prevention control 1 37
- Dew prevention control 2 37
- Freeze prevention control 1 37
- Freeze prevention control 2 37
- Outdoor air temperature control 37
- Protection control for cooling soft dry operation 37
- Cold draught prevention control 38
- Deice operation 38
- Intake air temperature control 38
- Low temperature compressor oil return control 38
- Odor cut control 38
- Outdoor air temperature control 38
- Overload protection control 38
- Protection control for heating operation 38
- Auto off on button 39
- Servicing mode 39
- Remote control button 40
- Reset ac 40
- Reset rc 40
- Set button 40
- Refrigeration cycle system 41
- Troubleshooting guide 41
- Carry out the measurements of pressure electric current and temperature fifteen minutes after an operation is started 42
- Relationship between the condition of the air conditioner and pressure and electric current 42
- Breakdown self diagnosis function 43
- Self diagnosis function three digits alphanumeric code 43
- Error codes table 44
- H11 indoor outdoor abnormal communication 46
- Self diagnosis method 46
- H14 indoor intake air temperature sensor abnormality 47
- H15 compressor temperature sensor abnormality 48
- H16 outdoor current transformer open circuit 49
- H19 indoor fan motor dc motor mechanism locked 50
- H23 indoor pipe temperature sensor abnormality 51
- H27 outdoor air temperature sensor abnormality 52
- H28 outdoor pipe temperature sensor abnormality 53
- H30 compressor discharge temperature sensor abnormality 54
- 0 h33 unspecified voltage between indoor and outdoor 55
- 1 h97 outdoor fan motor dc motor mechanism locked 56
- 2 h98 indoor high pressure protection 57
- 3 h99 indoor freeze prevention protection cooling or soft dry 58
- 4 f11 4 way valve abnormality 59
- 5 f90 power factor correction protection 60
- 6 f91 refrigeration cycle abnormality 61
- 7 f93 compressor rotation failure 62
- 8 f95 cooling high pressure abnormality 63
- 9 f96 ipm overheating 64
- 0 f97 compressor overheating 65
- 1 f98 input over current detection 66
- 2 f99 output over current detection 67
- Checking the power transistor never touch any live parts for at least 10 minutes after turning off the circuit breaker if unavoidable necessary to touch a live part make sure the power transistor s supply voltage is below 50v using the tester for the uvw make measurement at the faston terminal on the board of the relay connector 67
- Malfunction caused faulty outdoor unit pcb faulty compressor 67
- Malfunction decision conditions during operation of cooling and heating when an output over current dc peak current value at ipm prevention control is detected by checking the current that flows in the inverter dc peak sensing circuitry 67
- Troubleshooting 67
- Disassembly and assembly instructions 68
- Indoor electronic controllers cross flow fan and indoor fan motor removal procedures 68
- Outdoor electronic controller removal procedure 72
- Technical data 73
- Cu ce12lke 81
- Cu ce9lke 81
- Sensible capacity chart 81
- Exploded view and replacement parts list 82
- Indoor unit 82
- Note all parts are supplied from phaam malaysia vendor code 00029488 o marked parts are recommended to be kept in stock 83
- Outdoor unit 84
- Note all parts are supplied from phaam malaysia vendor code 00029488 o marked parts are recommended to be kept in stock 85
- Phaam printed in malaysia sfyw1007 00 85
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