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Panasonic CS-E12LKEW Service Manual

Other manuals for CS-E12LKEW: Service Manual, Operating Instructions Manual

Summary of CS-E12LKEW

  • Page 1

    © panasonic ha air-conditioning (m) sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law. Order no. Phaam1001023c2 air conditioner indoor unit outdoor unit cs-e7lkew cu-e7lke cs-e7lkew cu-e7lke-3 cs-e9lkew cu-e9lke cs-e9lkew cu-e9lke-3 cs-e12lkew cu-e12lke cs-e12lkew cu-e12lke...

  • Page 2: Table of Contents

    2 table of contents page page 1 safety precautions ----------------------------------------------- 3 2 specifications ------------------------------------------------------ 5 3 features ------------------------------------------------------------ 27 4 location of controls and components ------------...

  • Page 3: 1 Safety Precautions

    3 1 safety precautions • 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...

  • Page 4

    4 18. For r410a models, when connecting the piping, do not use any existing (r22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only r410a materials. Thickness of copper pipes used with r...

  • Page 5: 2 Specifications

    5 2 specifications model indoor cs-e7lkew, cs-xe7lkew cs-e9lkew, cs-xe9lkew outdoor cu-e7lke cu-e9lke performance test condition eurovent eurovent power supply phase, hz single, 50 single, 50 v 230 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 0.70 2.05 2.40 0.80 2.50 3.00 btu/h 2390 6990 81...

  • Page 6

    6 out door fan type propeller fan propeller fan material pp pp motor type induction (6-poles) induction (6-poles) input power w 62 65 output power w 25 25 speed hi rpm 770 770 moisture removal l/h (pt/h) 1.3 (2.7) 1.5 (3.2) indoor airflow qlo cool m 3 /min (ft 3 /min) 5.6 (198) 4.9 (173) heat m 3 /m...

  • Page 7

    7 1. Cooling capacities are based on indoor temperature of 27 ° c dry bulb (80.6 ° f dry bulb), 19.0 ° c wet bulb (66.2 ° f wet bulb) and outdoor air temperature of 35 ° c dry bulb (95 ° f dry bulb), 24 ° c wet bulb (75.2 ° f wet bulb) 2. Heating capacities are based on indoor temperature of 20 ° c ...

  • Page 8

    8 model indoor cs-e12lkew, cs-xe12lkew cs-e15lkew, cs-xe15lkew outdoor cu-e12lke cu-e15lke performance test condition eurovent eurovent power supply phase, hz single, 50 single, 50 v 230 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 0.80 3.50 4.00 0.80 4.20 5.00 btu/h 2730 11900 13600 2730 1...

  • Page 9

    9 out door fan type propeller fan propeller fan material pp pp motor type dc motor (8-poles) induction (6-poles) input power w — 70 output power w 40 30 speed hi rpm 830 850 moisture removal l/h (pt/h) 2.0 (4.2) 2.4 (5.1) indoor airflow qlo cool m 3 /min (ft 3 /min) 4.9 (173) 6.0 (212) heat m 3 /min...

  • Page 10

    10 1. Cooling capacities are based on indoor temperature of 27 ° c dry bulb (80.6 ° f dry bulb), 19.0 ° c wet bulb (66.2 ° f wet bulb) and outdoor air temperature of 35 ° c dry bulb (95 ° f dry bulb), 24 ° c wet bulb (75.2 ° f wet bulb) 2. Heating capacities are based on indoor temperature of 20 ° c...

  • Page 11

    11 model indoor cs-e7lkew, cs-xe7lkew cs-e9lkew, cs-xe9lkew outdoor cu-e7lke-3 cu-e9lke-3 performance test condition eurovent eurovent power supply phase, hz single, 50 single, 50 v 230 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 0.70 2.05 2.40 0.80 2.50 3.00 btu/h 2390 6990 8180 2730 8530...

  • Page 12

    12 out door fan type propeller fan propeller fan material pp pp motor type induction (6-poles) induction (6-poles) input power w 62 65 output power w 25 25 speed hi rpm 770 770 moisture removal l/h (pt/h) 1.3 (2.7) 1.5 (3.2) indoor airflow qlo cool m 3 /min (ft 3 /min) 5.6 (198) 4.9 (173) heat m 3 /...

  • Page 13

    13 1. Cooling capacities are based on indoor temperature of 27 ° c dry bulb (80.6 ° f dry bulb), 19.0 ° c wet bulb (66.2 ° f wet bulb) and outdoor air temperature of 35 ° c dry bulb (95 ° f dry bulb), 24 ° c wet bulb (75.2 ° f wet bulb) 2. Heating capacities are based on indoor temperature of 20 ° c...

  • Page 14

    14 model indoor cs-e12lkew, cs-xe12lkew outdoor cu-e12lke-3 performance test condition eurovent power supply phase, hz single, 50 v 230 min. Mid. Max. Cooling capacity kw 0.80 3.50 4.00 btu/h 2730 11900 13600 kcal/h 690 3010 3440 running current a — 4.1 — input power w 185 905 1.18k annual consumpti...

  • Page 15

    15 out door fan type propeller fan material pp motor type induction (6-poles) input power w 70 output power w 30 speed hi rpm 830 moisture removal l/h (pt/h) 2.0 (4.2) indoor airflow qlo cool m 3 /min (ft 3 /min) 4.9 (173) heat m 3 /min (ft 3 /min) 5.3 (187) lo cool m 3 /min (ft 3 /min) 7.2 (254) he...

  • Page 16

    16 1. Cooling capacities are based on indoor temperature of 27 ° c dry bulb (80.6 ° f dry bulb), 19.0 ° c wet bulb (66.2 ° f wet bulb) and outdoor air temperature of 35 ° c dry bulb (95 ° f dry bulb), 24 ° c wet bulb (75.2 ° f wet bulb) 2. Heating capacities are based on indoor temperature of 20 ° c...

  • Page 17

    17 model indoor cs-e18lkew, cs-xe18lkew cs-e21lkew, cs-xe21lkew outdoor cu-e18lke cu-e21lke performance test condition eurovent eurovent power supply phase, hz single, 50 single, 50 v 230 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 0.90 5.00 6.00 0.90 6.30 7.10 btu/h 3070 17100 20500 3070 ...

  • Page 18

    18 out d oor f a n type propeller fan propeller fan material pp pp motor type pwm (8-poles) pwm (8-poles) input power w 74.8 74.8 output power w 40 40 speed hi cool rpm 660 700 heat rpm 640 680 moisture removal l/h (pt/h) 2.8 (5.9) 3.5 (7.4) indoor airflow qlo cool m 3 /min (ft 3 /min) 12.00 (424) 1...

  • Page 19

    19 1. Cooling capacities are based on indoor temperature of 27 ° c dry bulb (80.6 ° f dry bulb), 19.0 ° c wet bulb (66.2 ° f wet bulb) and outdoor air temperature of 35 ° c dry bulb (95 ° f dry bulb), 24 ° c wet bulb (75.2 ° f wet bulb) 2. Heating capacities are based on indoor temperature of 20 ° c...

  • Page 20

    20 • multi split combination possibility: - a single outdoor unit enables air conditioning of up to two separate rooms for cu-2e15gbe, cu-2e18cbpg. - a single outdoor unit enables air conditioning of up to three separate rooms for cu-3e18ebe, cu-3e23cbpg. - a single outdoor unit enables air conditio...

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    21.

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    22.

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    23.

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    24.

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    25.

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    26.

  • Page 27: 3 Features

    27 3 features • inverter technology - wider output power range - energy saving - quick cooling - quick heating - more precise temperature control • e-ion air purifying system with patrol sensor - active e-ions are released to catch dust particles and bring them back the large positively charged filt...

  • Page 28

    28 4 location of controls and components 4.1. Indoor unit 4.2. Outdoor unit.

  • Page 29

    29 4.3. Remote control 4.3.1. Cs-e7lk cs-e9lk cs-e12lk cs-e15lk cs-xe7lk cs-xe9lk cs-xe12lk cs-xe15lk 4.3.2. Cs-e18lk cs-e21lk cs-xe18lk cs-xe21lk.

  • Page 30: 5 Dimensions

    30 5 dimensions 5.1. Indoor unit 5.1.1. Cs-e7lk cs-e9lk cs-e12lk cs-e15lk cs-xe7lk cs-xe9lk cs-xe12lk cs-xe15lk.

  • Page 31

    31 5.1.2. Cs-e18lk cs-e21lk cs-xe18lk cs-xe21lk.

  • Page 32

    32 5.2. Outdoor unit 5.2.1. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke cu-e7lke-3 cu-e9lke-3 cu-e12lke-3 5.2.2. Cu-e18lke cu-e21lke.

  • Page 33

    33 6 refrigeration cycle diagram 6.1. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke.

  • Page 34

    34 6.2. Cu-e7lke-3 cu-e9lke-3 cu-e12lke-3.

  • Page 35

    35 6.3. Cu-e18lke cu-e21lke.

  • Page 36: 7 Block Diagram

    36 7 block diagram 7.1. Cu-e7lke cu-e9lke cu-e15lke.

  • Page 37

    37 7.2. Cu-e12lke.

  • Page 38

    38 7.3. Cu-e7lke-3 cu-e9lke-3 cu-e12lke-3.

  • Page 39

    39 7.4. Cu-e18lke cu-e21lke.

  • Page 40: 8 Wiring Connection Diagram

    40 8 wiring connection diagram 8.1. Indoor unit 8.1.1. Cs-e7lk cs-e9lk cs-e12lk cs-e15lk cs-xe7lk cs-xe9lk cs-xe12lk cs-xe15lk.

  • Page 41

    41 8.1.2. Cs-e18lk cs-e21lk cs-xe18lk cs-xe21lk.

  • Page 42

    42 8.2. Outdoor unit 8.2.1. Cu-e7lke cu-e9lke cu-e15lke.

  • Page 43

    43 8.2.2. Cu-e12lke.

  • Page 44

    44 8.2.3. Cu-e7lke-3 cu-e9lke-3 cu-e12lke-3.

  • Page 45

    45 8.2.4. Cu-e18lke cu-e21lke.

  • Page 46

    46 9 electronic circuit diagram 9.1. Indoor unit 9.1.1. Cs-e7lk cs-e9lk cs-e12lk cs-e15lk cs-xe7lk cs-xe9lk cs-xe12lk cs-xe15lk.

  • Page 47

    47 9.1.2. Cs-e18lk cs-e21lk cs-xe18lk cs-xe21lk.

  • Page 48

    48 9.2. Outdoor unit 9.2.1. Cu-e7lke cu-e9lke cu-e15lke.

  • Page 49

    49 9.2.2. Cu-e12lke.

  • Page 50

    50 9.2.3. Cu-e7lke-3 cu-e9lke-3 cu-e12lke-3.

  • Page 51

    51 9.2.4. Cu-e18lke cu-e21lke.

  • Page 52: 10 Printed Circuit Board

    52 10 printed circuit board 10.1. Indoor unit 10.1.1. Main printed circuit board.

  • Page 53

    53 10.1.2. Power printed circuit board 10.1.3. Indicator printed circuit board.

  • Page 54

    54 10.1.4. Receiver printed circuit board 10.1.5. High voltage power supply printed circuit board 10.1.6. Comparator printed circuit board 10.1.7. Eco patrol printed circuit board.

  • Page 55

    55 10.2. Outdoor unit 10.2.1. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke cu-e7lke-3 cu-e9lke-3 cu-e12lke-3.

  • Page 56

    56.

  • Page 57

    57 10.2.2. Cu-e18lke cu-e21lke.

  • Page 58: 11 Installation Instruction

    58 11 installation instruction 11.1. Select the best location 11.1.1. Indoor unit • do not install the unit in excessive oil fume area such as kitchen, workshop and etc. • there should not be any heat source or steam near the unit. • there should not be any obstacles blocking the air circulation. • ...

  • Page 59

    59 11.2. Indoor unit 11.2.1. How to fix installation plate the mounting wall is strong and solid enough to prevent it from the vibration. The centre of installation plate should be at more than at right and left of the wall. The distance from installation plate edge to ceiling should more than . Fro...

  • Page 60

    60 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping (this can be used for left rear piping and bottom piping also.).

  • Page 61

    61 11.2.4. Connect the cable to the indoor unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm 2 flexible cord, type designation 245 iec 57 o...

  • Page 62

    62 11.3. Outdoor unit 11.3.1. Install the outdoor unit • 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 s...

  • Page 63

    63 11.3.3. Evacuation of the equipment when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. 1. 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 conne...

  • Page 64

    64 5. Secure the power supply cord and connecting cable onto the control board with the holder. 6. Attach the control board cover back to the original position with screw. 7. For wire stripping and connection requirement, refer to instruction of indoor unit. This equipment must be properly earthed. ...

  • Page 65: 12 Operation and Control

    65 12 operation and control 12.1. Basic function inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer mai...

  • Page 66

    66 12.1.5. Automatic operation • this mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. • during operation mode judgment, indoor fan motor (with speed of lo-) is running for 30 sec...

  • Page 67

    67 [heating] • according to indoor pipe temperature, automatic heating fan speed is determined as follows. 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 increase, fan motor is t...

  • Page 68

    68 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. 12.4.2. Horizontal airflow 12.4.2....

  • Page 69

    69 12.5. Quiet operation (cooling mode/cooling area of dry mode) a. Purpose to provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition • when “quiet” button at remote control is pressed. Quiet led illuminates. B. Quiet operation stop condi...

  • Page 70

    70 12.7. Powerful mode operation • when the powerful mode is selected, the internal setting temperature will shift lower up to 2 ° c (for cooling/soft dry) or higher up to 3.5 ° c (for heating) than remote control setting temperature for 20 minutes to achieve the setting temperature quickly. 12.8. T...

  • Page 71

    71 12.11. Patrol operation • to monitor air dirtiness level by using patrol sensor and to maintain air freshness by activates e-ion operation • patrol operation starts condition - when the unit operation is started with “off/on” button. - when the unit stops, “patrol” operation is selected, patrol i...

  • Page 72

    72 • patrol sensor control - first 2 minutes from patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The air dirtiness level is set to clean. - after that, patrol sensor starts to record the resistance value at fixed interval. Higher resi...

  • Page 73

    73 • indicator - when patrol is selected, patrol sensor indicator on. • remote control receiving sound • timer control - when on timer activates when unit stops, previous operation resumes and restored last saved patrol operation status. - when on timer activates during any operation, no change and ...

  • Page 74

    74 auto fan speed for e-ion operation switches between hlo and clo at pattern below: b. Airflow direction control • during any operation mode combines with e-ion operation, airflow direction follows respective operation mode. • during e-ion individual operation, only auto air swing is allowed. Even ...

  • Page 75

    75 f. Power failure • during e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumes immediately. • during combination operation, if power failure occurs, after power resumes, combination operation resume immediately. G. Error detection control wh...

  • Page 76

    76 12.14. Eco patrol operation • a pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: • eco patrol operation - human presence/absen...

  • Page 77

    77 • eco patrol demo mode - press “set” button continuously for 15 seconds by using pointer during air conditioner is off condition to enter internal setting mode. - press “timer decrement” button to select “ec demo”. - press “timer set” button to toggle eco patrol demo mode. - short “beep”: turn on...

  • Page 78

    78 • other information - eco patrol, powerful, quiet and mild dry cooling cannot be operated at the same time. - eco patrol sensor initialized time is 70 seconds from power supplied to eco patrol sensor, or 70 seconds from the operation start. • eco 1 cooling/soft dry operation • eco 2 cooling/soft ...

  • Page 79

    79 • purpose is to improve sensor serviceability when sensor is malfunction. 1. Control starting condition when all of the conditions are formed • not in eco patrol demo mode. • eco patrol mode on. • when eco patrol sensor check mode signal is received; the procedure of selection is as shown: - pres...

  • Page 80

    80 13 operation control (for multi split connection) during multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 13.1. Cooling operation 13.1.1. Thermostat control • capability supply to indoor unit is off (expansion valve c...

  • Page 81

    81 13.5. Indoor fan motor operation 13.5.1. Residual heat removal control • to prevent high pressure at indoor unit, when heating mode thermostat-off condition or power supply off, indoor fan continue to operate at controlled fan speed for maximum 30 seconds then stop. 13.6. Powerful mode operation ...

  • Page 82: 14 Protection Control

    82 14 protection control 14.1. Protection control for all operations 14.1.1. Restart control (time delay safety control) • the compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing off/on button at remote control within this pe...

  • Page 83

    83 14.1.5. Compressor overheating prevention control • instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. • if compressor discharge temperature exceeds 107 ° c (e7 ~ 15lk) and 112 ° c (e18 ~ 21lk), compressor wi...

  • Page 84

    84 14.2. Protection control for cooling & soft dry operation 14.2.1. Outdoor air temperature control • the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. • this control will begin 1 minute after the compressor starts. • compres...

  • Page 85

    85 14.2.6. Dew prevention control 2 • to prevent dew formation at indoor unit discharge area. • this control starts if all conditions continue for 20 minutes: - operated with cooling or soft dry mode. - indoor intake temperature is between 25 ° c and 29 ° c. - outdoor air temperature is less than 30...

  • Page 86

    86 14.3.4. Low temperature compressor oil return control (e7 ~ 15lk) • in heating operation, if the outdoor temperature falls below -10 ° c when compressor starts, the compressor frequency will be regulated up to 600 seconds. 14.3.5. Cold draught prevention control • when indoor pipe temperature is ...

  • Page 87: 15 Servicing Mode

    87 15 servicing mode 15.1. Auto off/on button 1. Auto operation mode the auto operation will be activated immediately once the auto off/on button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2. Test run operati...

  • Page 88

    88 4. Remote control receiving sound off/on mode the remote control receiving sound off/on mode will be activated if the auto off/on button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the remote control receiving sound off/on mode is in st...

  • Page 89: 16 Troubleshooting Guide

    89 16 troubleshooting guide 16.1. Refrigeration cycle system in order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a f...

  • Page 90

    90 16.1.1. Relationship between the condition of the air conditioner and pressure and electric current • carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started. Cooling mode heating mode low pressure high pressure electric current duri...

  • Page 91

    91 16.2. Breakdown self diagnosis function 16.2.1. Self diagnosis function (three digits alphanumeric code) • once abnormality has occurred during operation, the unit will stop its operation, and timer led blinks. • although timer led goes off when power supply is turned off, if the unit is operated...

  • Page 92

    92 16.3. Error codes table abnormality / protection control abnormality judgement protection operation problem check location diagnosis display h00 no memory of failure — normal operation — — h11 indoor/outdoor abnormal communication after operation for 1 minute indoor fan only operation can start b...

  • Page 93

    93 h39 abnormal indoor operating unit or standby units 3 times happen within 40 minutes — wrong wiring and connecting pipe, expansion valve abnormality, indoor heat exchanger sensor open circuit • check indoor/outdoor connection wire and connection pipe • indoor heat exchanger sensor lead wire and c...

  • Page 94

    94 16.4. Self-diagnosis method 16.4.1. H11 (indoor/outdoor abnormal communication) malfunction decision conditions during startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction caused • faulty ...

  • Page 95

    95 16.4.2. H12 (indoor/outdoor capacity rank mismatched) malfunction decision conditions during startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction caused • wrong models interconnected. • wrong indoor unit or outdoor unit pcbs mounted. • indoo...

  • Page 96

    96 16.4.3. H14 (indoor intake air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector conn...

  • Page 97

    97 16.4.4. H15 (compressor temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector connection...

  • Page 98

    98 16.4.5. H16 (outdoor current transformer open circuit) malfunction decision conditions a current transformer (ct) is detected by checking the compressor running frequency ( rated frequency) and ct detected input current (less than 0.65a) for continuously 20 seconds. Malfunction caused • ct defect...

  • Page 99

    99 16.4.6. H19 (indoor fan motor - dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or malfunction caused • operation stops due to short circuit ins...

  • Page 100

    100 16.4.7. H23 (indoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector conne...

  • Page 101

    101 16.4.8. H25 (e-ion air purifying system abnormal) malfunction decision conditions during standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation. Malfunction caused • faulty indoor main pcb. • faulty indoor e-ion power module. Troubleshooting.

  • Page 102

    102 16.4.9. H27 (outdoor air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector connection. • f...

  • Page 103

    103 16.4.10. H28 (outdoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector connection. ...

  • Page 104

    104 16.4.11. H30 (compressor discharge temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sen- sor are used to determine sensor errors. Malfunction caused • faulty co...

  • Page 105

    105 16.4.12. H32 (outdoor heat exchanger temperature sensor 2 abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused • faulty ...

  • Page 106

    106 16.4.13. H33 (unspecified voltage between indoor and outdoor) malfunction decision conditions the supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction caused • wrong models interconnected. • wrong indoor unit and outdoor unit pcbs used. • indoor unit or ou...

  • Page 107

    107 16.4.14. H34 (outdoor heat sink temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector co...

  • Page 108

    108 16.4.15. H36 (outdoor gas pipe sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction caused • faulty connector connection. • fa...

  • Page 109

    109 16.4.16. H37 (outdoor liquid pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction caused • faulty connecto...

  • Page 110

    110 16.4.17. H58 (patrol sensor abnormality) malfunction decision conditions • if patrol sensor feedback is 0v or 5v continuous for 6 hours. • error will display only when the patrol operation is on. Malfunction caused • faulty connector connection. • faulty patrol sensor. Troubleshooting.

  • Page 111

    111 16.4.18. H97 (outdoor fan motor - dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor. Malfunction caused • operation stops due to short circuit inside the fan motor winding. • op...

  • Page 112

    112 16.4.19. H98 (indoor high pressure protection) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions during heating operation, the temperature detected by the indoor pipe temperature sensor is above 60 e c. Malfunction caused • air short circuit ...

  • Page 113

    113 16.4.20. H99 (indoor freeze prevention protection: cooling or soft dry) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions freeze prevention control takes place (when indoor pipe temperature is lower than 2 e c) malfunction caused • air short ...

  • Page 114

    114 16.4.21. F11 (4-way valve abnormality) malfunction decision conditions • when heating operation, when indoor pipe temperature is below 10 ° c • when cooling operation, when indoor pipe temperature is above 45 ° c malfunction caused • connector in poor contact • faulty sensor • faulty outdoor uni...

  • Page 115

    115 16.4.22. F17 (indoor standby units freezing abnormality) malfunction decision conditions • when the different between indoor intake air temperature and indoor pipe temperature is above 10 ° c or indoor pipe temperature is below -1.0 ° c remark: when the indoor standby unit is freezing, the outdo...

  • Page 116

    116 16.4.23. F90 (power factor correction protection) malfunction decision conditions during startup and operation of cooling and heating, when power factor correction (pfc) protection circuitry at the outdoor unit main pcb senses abnormal high dc voltage level. Malfunction caused • dc voltage peak ...

  • Page 117

    117 16.4.24. 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 • during cooling, indoor intake - indoor pipe e c • duri...

  • Page 118

    118 16.4.25. F93 (compressor rotation failure) malfunction decision conditions a compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction caused • compressor terminal disconnect • faulty outdoor pcb • faulty compressor t...

  • Page 119

    119 16.4.26. F95 (cooling high pressure abnormality) malfunction decision conditions during operation of cooling, when outdoor unit heat exchanger high temperature data (61 e c) is detected by the outdoor pipe temperature sensor. Malfunction caused • air short circuit at outdoor unit • dust accumula...

  • Page 120

    120 16.4.27. F96 (ipm overheating) malfunction decision conditions during operating of cooling and heating, when ipm temperature data (100 ° c) is detected by the ipm temperature sensor. Multi models only • compressor overheating: during operation of cooling and heating, when the compressor ol is ac...

  • Page 121

    121 16.4.28. F97 (compressor overheating) malfunction decision conditions during operation of cooling and heating, when compressor tank temperature data (112 e c) is detected by the compressor tank temperature sensor. Malfunction caused • faulty compressor tank temperature sensor • 2/3 way valve clo...

  • Page 122

    122 16.4.29. F98 (input over current detection) malfunction decision conditions during operation of cooling and heating, when an input over-current (x value in total running current control) is detected by checking the input current value being detected by current transforme r (ct) with the compress...

  • Page 123

    123 16.4.30. F99 (output over current detection) 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. Malfunctio...

  • Page 124

    124 17 disassembly and assembly instructions 17.1. Cs-e7lk cs-e9lk cs-e12lk cs-e15lk 17.1.1. Indoor electronic controllers, cross flow fan and indoor fan motor removal procedures 17.1.1.1. To remove front grille 17.1.1.2. To remove power electronic controller high voltages are generated in the elect...

  • Page 125

    125 17.1.1.3. To remove power electronic controller 17.1.1.4. To remove discharge grille.

  • Page 126

    126 17.1.1.5. To remove control board 17.1.1.6. To remove cross flow fan and indoor fan motor.

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    127.

  • Page 128

    128 17.2. Cs-e18lk cs-e21lk 17.2.1. Indoor electronic controllers, cross flow fan and indoor fan motor removal procedures 17.2.1.1. To remove front grille 17.2.1.2. To remove horizontal vane.

  • Page 129

    129 17.2.1.3. To remove power electronic controller.

  • Page 130

    130 17.2.1.4. To remove discharge grille 17.2.1.5. To remove control board.

  • Page 131

    131 17.2.1.6. To remove cross flow fan and indoor fan motor.

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    132.

  • Page 133

    133 17.3. Outdoor electronic controller removal procedure 17.3.1. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke cu-e7lke-3 cu-e9lke-3 cu-e12lke-3 caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the top panel. Fig. 1 2. Remove the 6 screws of the...

  • Page 134

    134 17.3.2. Cu-e18lke cu-e21lke 1. Remove the 4 screws of the top panel. Fig. 1 2. Remove the 10 screws of the front panel. Fig. 2 3. Remove the top cover of the electronic controller. Fig. 3 4. Remove the control board. Fig. 4 5. Remove the 8 screws of the electronic controller. Fig. 5 caution! Whe...

  • Page 135: 18 Technical Data

    135 18 technical data 18.1. Operation characteristics 18.1.1. Cu-e7lke.

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    136.

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    137.

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    138.

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    139 18.1.2. Cu-e9lke.

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    140

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    141.

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    142.

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    143 18.1.3. Cu-e12lke.

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    144.

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    145.

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    146.

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    147 18.1.4. Cu-e15lke.

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    148.

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    149.

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    150

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    151 18.1.5. Cu-e7lke-3.

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    152.

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    153.

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    154.

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    155 18.1.6. Cu-e9lke-3.

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    156.

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    157.

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    158.

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    159 18.1.7. Cu-e12lke-3.

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    160

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    161.

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    162.

  • Page 163

    163 18.1.8. Cu-e18lke cooling characteristic at different outdoor air temperature.

  • Page 164

    164 cooling characteristic at different piping length.

  • Page 165

    165 heating characteristic at different outdoor air temperature.

  • Page 166

    166 heating characteristic at different piping length.

  • Page 167

    167 18.1.9. Cu-e21lke cooling characteristic at different outdoor air temperature.

  • Page 168

    168 cooling characteristic at different piping length.

  • Page 169

    169 heating characteristic at different outdoor air temperature.

  • Page 170

    170 heating characteristic at different piping length.

  • Page 171

    171 18.2. Sensible capacity chart o cu-e7lke cu-e7lke-3 o cu-e9lke cu-e9lke-3 o cu-e12lke o cu-e12lke-3 o cu-e15lke 230v outdoor temp. ( ° c) indoor wet bulb temp. 30 35 40 46 tc shc ip tc shc ip tc shc ip tc shc ip 17.0 ° c 2.03 1.54 0.43 1.90 1.48 0.46 1.77 1.42 0.50 1.61 1.35 0.53 19.0 ° c 2.05 0...

  • Page 172

    172 o cu-e18lke o cu-e21lke 230v outdoor temp. ( ° c) indoor wet bulb temp. 30 35 40 46 tc shc ip tc shc ip tc shc ip tc shc ip 17.0 ° c 4.96 3.76 1.35 4.64 3.61 1.45 4.31 3.47 1.55 3.92 3.29 1.67 19.0 ° c 5.00 1.47 19.5 ° c 5.45 3.94 1.37 5.09 3.78 1.48 4.74 3.64 1.58 4.31 3.47 1.70 22.0 ° c 5.94 4...

  • Page 173

    173 19 exploded view and replacement parts list 19.1. Indoor unit 19.1.1. Cs-e7lkew cs-e9lkew cs-e12lkew cs-e15lkew cs-xe7lkew cs-xe9lkew cs-xe12lkew cs-xe15lkew note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard serv...

  • Page 174

    174 ref. No. Part name & description qty. Cs-e7lkew cs-e9lkew cs-e12lkew cs-e15lkew remarks 1 chassy complete 1 cwd50c1653 ← ← ← 2 fan motor 1 l6cbyyyl0037 ← ← ← o 3 cross flow fan complete 1 cwh02c1076 ← ← ← 4 bearing assy 1 cwh64k007 ← ← ← 5 screw - cross flow fan 1 cwh551146 ← ← ← 6 evaporator co...

  • Page 175

    175 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. 57 electronic controller - eco patrol 1 cwa745791 ← ← ← 58 cover for pcb eco (upper) 1 cwd933192 ← ← ← 59 cover for pcb eco (bottom) 1 cwd933193 ← ← ← 60 lead wir...

  • Page 176

    176 ref. No. Part name & description qty. Cs-xe7lkew cs-xe9lkew cs-xe12lkew cs-xe15lkew remarks 1 chassy complete 1 cwd50c1605 ← ← ← 2 fan motor 1 l6cbyyyl0037 ← ← ← o 3 cross flow fan complete 1 cwh02c1076 ← ← ← 4 bearing assy 1 cwh64k007 ← ← ← 5 screw - cross flow fan 1 cwh551146 ← ← ← 6 evaporato...

  • Page 177

    177 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. 57 electronic controller - eco patrol 1 cwa745791 ← ← ← 58 cover for pcb eco (upper) 1 cwd933192 ← ← ← 59 cover for pcb eco (bottom) 1 cwd933193 ← ← ← 60 lead wir...

  • Page 178

    178 19.1.2. Cs-e18lkew cs-e21lkew cs-xe18lkew cs-xe21lkew 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 179

    179 ref no. Part name & description qty. Cs-e18lkew cs-e21lkew cs-xe18lkew cs-xe21lkew remarks 1 chassy complete 1 cwd50c1654 ← cwd50c1604 ← 2 fan motor 1 l6cbyyyl0039 ← ← ← o 3 cross flow fan complete 1 cwh02c1077 ← ← ← 4 bearing ass’y 1 cwh64k007 ← ← ← 5 screw - cross flow fan 1 cwh551146 ← ← ← 6 ...

  • Page 180

    180 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. 56 electronic controller - comparator 1 cwa745790 ← ← ← o 57 electronic controller - eco patrol 1 cwa745791 ← ← ← o 58 cover for pcb eco (upper) 1 cwd933192 ← ← ←...

  • Page 181

    181 19.2. Outdoor unit 19.2.1. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke cu-e7lke-3 cu-e9lke-3 cu-e12lke-3 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 182

    182 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. Ref. No. Part name & description qty. Cu-e7lke cu-e9lke cu-e12lke cu-e15lke remarks 3 7 0 2 k 0 5 d w c 1 y ’ s s a y s s a h c 1 ĕ ĕ ĕ 2 sound proof material 1 c...

  • Page 183

    183 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. Ref. No. Part name & description qty. Cu-e7lke-3 cu-e9lke-3 cu-e12lke-3 remarks 1 chassy ass’y 1 cwd50k2073 ← ← 2 sound proof material 1 cwg302314 ← ← 3 fan motor...

  • Page 184

    184 19.2.2. Cu-e18lke cu-e21lke 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 185

    185 (note) • all parts are supplied from phaam, malaysia (vendor code: 00029488). • “o” marked parts are recommended to be kept in stock. [phaam] printed in malaysia sfyw1002-02 ref. No. Description & name qty. Cu-e18lke cu-e21lke remarks 5 8 0 2 k 0 5 d w c 1 y ’ s s a y s s a h c 1 ← 7 7 0 0 5 h w...