1. DL manuals
  2. Panasonic
  3. Air Conditioner
  4. CS-E12NKEW
  5. Service Manual

Panasonic CS-E12NKEW Service Manual

Summary of CS-E12NKEW

  • Page 1

    © panasonic appliances air-conditioning (m) sdn. Bhd. 2012. Unauthorized copying and distribution is a violation of law. Order no: phaam1201076c2 indoor unit outdoor unit cs-e7nkew cs-e7nkew cs-e9nkew cs-e9nkew cs-e12nkew cs-e12nkew cs-e15nkew cs-e18nkew cs-e21nkew cs-xe7nkew cs-xe7nkew cs-xe9nkew c...

  • Page 2: Table of Contents

    2 table of contents 1. Safety precautions .............................................3 2. Specifications .....................................................5 3. Features.............................................................27 4. Location of controls and components..........28 4.1 indoor u...

  • Page 3: 1. Safety Precautions

    3 caution warning warning 1. Safety precautions š read the following “safety precautions” carefully before perform any servicing. š 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. š...

  • Page 4

    4 caution warning 19. During installation, install the refrigerant piping properly before run the compressor. (operation of compressor without fixing refrigeration piping and valves at opened condition will caused suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion,...

  • Page 5: 2. Specifications

    5 2. Specifications indoor cs-e7nkew, cs-xe7nkew cs-e9nkew, cs-xe9nkew model outdoor cu-e7nke cu-e9nke performance test condition eurovent eurovent phase, hz single, 50 single, 50 power supply v 230 230 min. Mid. Max. Min. Mid. Max. Kw 0.75 2.05 2.40 0.85 2.50 3.00 btu/h 2560 6990 8180 2900 8530 102...

  • Page 6

    6 type cross-flow fan cross-flow fan material asg20k1 asg20k1 motor type transistor (8-poles) transistor (8-poles) input power w 94.8 94.8 output power w 40 40 cool rpm 560 600 qlo heat rpm 600 640 cool rpm 640 700 lo heat rpm 700 790 cool rpm 845 930 me heat rpm 895 1015 cool rpm 1050 1160 hi heat ...

  • Page 7

    7 inner diameter mm 16.7 16.7 drain hose length mm 650 650 fin material aluminium (pre coat) aluminium (pre coat) fin type slit fin slit fin row x stage x fpi 2 x 15 x 17 2 x 15 x 21 indoor heat exchanger size (w x h x l) mm 610 x 315 x 25.4 610 x 315 x 25.4 fin material aluminium aluminium fin type...

  • Page 8

    8 indoor cs-e12nkew, cs-xe12nkew cs-e15nkew, cs-xe15nkew model outdoor cu-e12nke cu-e15nke performance test condition eurovent eurovent phase, hz single, 50 single, 50 power supply v 230 230 min. Mid. Max. Min. Mid. Max. Kw 0.85 3.50 4.00 0.85 4.20 5.00 btu/h 2900 11900 13600 2900 14300 17100 capaci...

  • Page 9

    9 type cross-flow fan cross-flow fan material asg20k1 asg20k1 motor type transistor (8-poles) transistor (8-poles) input power w 94.8 94.8 output power w 40 40 cool rpm 600 700 qlo heat rpm 640 870 cool rpm 800 840 lo heat rpm 980 1050 cool rpm 1030 1050 me heat rpm 1140 1200 cool rpm 1260 1270 hi h...

  • Page 10

    10 inner diameter mm 16.7 16.7 drain hose length mm 650 650 fin material aluminium (pre coat) aluminium (pre coat) fin type slit fin slit fin row x stage x fpi 2 x 15 x 21 2 x 15 x 21 indoor heat exchanger size (w x h x l) mm 610 x 315 x 25.4 610 x 315 x 25.4 fin material aluminium aluminium fin typ...

  • Page 11

    11 indoor cs-e7nkew, cs-xe7nkew cs-e9nkew, cs-xe9nkew model outdoor cu-e7nke-3 cu-e9nke-3 performance test condition eurovent eurovent phase, hz single, 50 single, 50 power supply v 230 230 min. Mid. Max. Min. Mid. Max. Kw 0.75 2.05 2.40 0.85 2.50 3.00 btu/h 2560 6990 8180 2900 8530 10200 capacity k...

  • Page 12

    12 type cross-flow fan cross-flow fan material asg20k1 asg20k1 motor type transistor (8-poles) transistor (8-poles) input power w 94.8 94.8 output power w 40 40 cool rpm 560 600 qlo heat rpm 600 640 cool rpm 640 700 lo heat rpm 700 790 cool rpm 845 930 me heat rpm 895 1015 cool rpm 1050 1160 hi heat...

  • Page 13

    13 inner diameter mm 16.7 16.7 drain hose length mm 650 650 fin material aluminium (pre coat) aluminium (pre coat) fin type slit fin slit fin row x stage x fpi 2 x 15 x 17 2 x 15 x 21 indoor heat exchanger size (w x h x l) mm 610 x 315 x 25.4 610 x 315 x 25.4 fin material aluminium aluminium fin typ...

  • Page 14

    14 indoor cs-e12nkew, cs-xe12nkew model outdoor cu-e12nke-3 performance test condition eurovent phase, hz single, 50 power supply v 230 min. Mid. Max. Kw 0.85 3.50 4.00 btu/h 2900 11900 13600 capacity kcal/h 730 3010 3440 running current a - 4.1 - input power w 250 905 1.18k annual consumption kwh -...

  • Page 15

    15 type cross-flow fan material asg20k1 motor type transistor (8-poles) input power w 94.8 output power w 40 cool rpm 600 qlo heat rpm 640 cool rpm 800 lo heat rpm 980 cool rpm 1030 me heat rpm 1140 cool rpm 1260 hi heat rpm 1300 cool rpm 1290 indoor fan speed shi heat rpm 1310 type propeller fan ma...

  • Page 16

    16 inner diameter mm 16.7 drain hose length mm 650 fin material aluminium (pre coat) fin type slit fin row x stage x fpi 2 x 15 x 21 indoor heat exchanger size (w x h x l) mm 610 x 315 x 25.4 fin material aluminium fin type corrugated fin row x stage x fpi 2 x 24 x 17 outdoor heat exchanger size (w ...

  • Page 17

    17 indoor cs-e18nkew, cs-xe18nkew cs-e21nkew, cs-xe21nkew model outdoor cu-e18nke cu-e21nke performance test condition eurovent eurovent phase, hz single, 50 single, 50 power supply v 230 230 min. Mid. Max. Min. Mid. Max. Kw 0.98 5.00 6.00 0.98 6.30 7.10 btu/h 3340 17100 20500 3340 21500 24200 capac...

  • Page 18

    18 type cross-flow fan cross-flow fan material asg20k1 asg20k1 motor type transistor (8-poles) transistor (8-poles) input power w 94.8 94.8 output power w 40 40 cool rpm 880 880 qlo heat rpm 990 960 cool rpm 960 970 lo heat rpm 1070 1040 cool rpm 1080 1145 me heat rpm 1190 1240 cool rpm 1200 1320 hi...

  • Page 19

    19 inner diameter mm 16.7 16.7 drain hose length mm 650 650 fin material aluminium (pre coat) aluminium (pre coat) fin type slit fin slit fin row x stage x fpi 2 x 15 x 17 2 x 15 x 17 indoor heat exchanger size (w x h x l) mm 810 x 315 x 25.4 810 x 315 x 25.4 fin material aluminium (pre coat) alumin...

  • Page 20

    20 š multi split combination possibility: o a single outdoor unit enables air conditioning of up to two separate rooms for cu-2e15lbe, cu-2e18lbe. O a single outdoor unit enables air conditioning of up to three separate rooms for cu-3e18lbe. O a single outdoor unit enables air conditioning of up to ...

  • Page 21

    21 š outdoor unit : cu-2e15lbe š outdoor unit : cu-2e18lbe.

  • Page 22

    22 š outdoor unit : cu-3e18lbe.

  • Page 23

    23 š outdoor unit : cu-4e23lbe.

  • Page 24

    24.

  • Page 25

    25 š outdoor unit : cu-4e27cbpg.

  • Page 26

    26.

  • Page 27: 3.   Features

    27 3. Features š inverter technology o wider output power range o energy saving o quick cooling o quick heating o more precise temperature control š environment protection o non-ozone depletion substances refrigerant (r410a) š long installation piping o long piping up to 15 meters (0.75 ~ 1.75hp) an...

  • Page 28

    28 4. Location of controls and components 4.1 indoor unit 4.2 outdoor unit 4.3 remote control.

  • Page 29: 5. Dimensions

    29 5. Dimensions 5.1 indoor unit 5.1.1 cs-e7nk cs-e9nk cs-e12nk cs-e15nk cs-xe7nk cs-xe9nk cs-xe12nk cs-xe15nk.

  • Page 30

    30 5.1.2 cs-e18nk cs-e21nk cs-xe18nk cs-xe21nk.

  • Page 31

    31 5.2 outdoor unit 5.2.1 cu-e7nke cu-e9nke cu-e7nke-3 cu-e9nke-3 cu-e12nke-3 5.2.2 cu-e12nke cu-e15nke.

  • Page 32

    32 5.2.3 cu-e18nke cu-e21nke.

  • Page 33

    33 6. Refrigeration cycle diagram 6.1 cu-e7nke cu-e9nke cu-e12nke cu-e15nke.

  • Page 34

    34 6.2 cu-e7nke-3 cu-e9nke-3 cu-e12nke-3.

  • Page 35

    35 6.3 cu-e18nke.

  • Page 36

    36 6.4 cu-e21nke.

  • Page 37: 7. Block Diagram

    37 7. Block diagram 7.1 cu-e7nke cu-e9nke.

  • Page 38

    38 7.2 cu-e12nke.

  • Page 39

    39 7.3 cu-e15nke.

  • Page 40

    40 7.4 cu-e7nke-3 cu-e9nke-3 cu-e12nke-3.

  • Page 41

    41 7.5 cu-e18nke cu-e21nke.

  • Page 42

    42 8. Wiring connection diagram 8.1 indoor unit.

  • Page 43

    43 8.2 outdoor unit 8.2.1 cu-e7nke cu-e9nke.

  • Page 44

    44 8.2.2 cu-e12nke.

  • Page 45

    45 8.2.3 cu-e15nke.

  • Page 46

    46 8.2.4 cu-e7nke-3 cu-e9nke-3 cu-e12nke-3.

  • Page 47

    47 8.2.5 cu-e18nke cu-e21nke.

  • Page 48

    48 9. Electronic circuit diagram 9.1 indoor unit.

  • Page 49

    49 9.2 outdoor unit 9.2.1 cu-e7nke cu-e9nke.

  • Page 50

    50 9.2.2 cu-e12nke.

  • Page 51

    51 9.2.3 cu-e15nke.

  • Page 52

    52 9.2.4 cu-e7nke-3 cu-e9nke-3 cu-e12nke-3.

  • Page 53

    53 9.2.5 cu-e18nke cu-e21nke.

  • Page 54: 10.  Printed Circuit Board

    54 10. Printed circuit board 10.1 indoor unit 10.1.1 main printed circuit board.

  • Page 55

    55 10.1.2 indicator printed circuit board 10.1.3 high voltage power supply printed circuit board 10.1.4 comparator printed circuit board.

  • Page 56

    56 10.1.5 human activity sensor printed circuit board.

  • Page 57

    57 10.2 outdoor unit 10.2.1 cu-e7nke cu-e9nke cu-e7nke-3 cu-e9nke-3 cu-e12nke-3.

  • Page 58

    58 10.2.2 cu-e12nke cu-e15nke.

  • Page 59

    59 10.2.3 cu-e18nke cu-e21nke.

  • Page 60: 11. Installation

    60 11. Installation instruction 11.1 select the best location 11.1.1 indoor unit š do not install the unit in excessive oil fume area such as kitchen, workshop and etc. š there should not be any heat source or steam near the unit. š there should not be any obstacles blocking the air circulation. š a...

  • Page 61

    61 11.2 indoor unit 11.2.1 how to fix installation plate the mounting wall shall be strong and solid enough to prevent if from the vibration. The center of installation plate should be at more than c at right and left of the wall. The distance from installation plate edge to ceiling should more than...

  • Page 62

    62 11.2.3.1 for the right rear piping 11.2.3.2 for the right and right bottom piping 11.2.3.3 for the embedded piping (this can be used for left rear piping and bottom piping also.).

  • Page 63

    63 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 connection 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 or h...

  • Page 64

    64 11.2.4.1 cutting and flaring the piping 1 please cut using pipe cutter and then remove the burrs. 2 remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3 please make flare after inserting the ...

  • Page 65

    65 11.3 outdoor unit 11.3.1 install the outdoor unit š 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 stron...

  • Page 66

    66 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. O be sure to connect...

  • Page 67

    67 5 secure the power supply cord and connection cable onto the control board with the holder. 6 attach the control board cover back to the original position with the screw. 7 for wire stripping and connection requirement, refer to instruction 11.2.4 of the indoor unit. Warning this equipment must b...

  • Page 68: 12. Operation

    68 12. Operation 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 maintai...

  • Page 69

    69 12.1.5 automatic operation š 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. š during operation mode judgment, indoor fan motor (with speed of lo-) is running for 30 seco...

  • Page 70

    70 [heating] š according to indoor pipe temperature, automatic heating fan speed is determined as follows. B. Feedback control š immediately after the fan motor started, feedback control is performed once every second. š during fan motor on, if fan motor feedback ≥ 2550 rpm or counter increase, fan ...

  • Page 71

    71 vane angle (°) operation mode 1 2 3 4 5 usual (ventilation) 5 ~ 35 auto control with dew 5 ~ 35 usual (ventilation) 5 12.5 20 27.5 35 cooling manual control with dew 5 12.5 20 27.5 35 usual 5 ~ 35 auto control with dew 5 ~ 35 usual 5 12.5 20 27.5 35 dry manual control with dew 5 12.5 20 27.5 35 h...

  • Page 72

    72 pattern 1 2 3 4 5 airflow direction patterns at remote control vane angle (°) 90 70 80 100 110 cs-e18, 21nk cs-xe18, 21nk 12.5 quiet operation (cooling mode/cooling area of dry mode) š purpose o to provide quiet cooling operation compare to normal operation. š control condition o quiet operation ...

  • Page 73

    73 š control contents o fan speed manual fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of hi, me, lo for 3db. Fan speed for quiet operation is reduced from setting fan speed. O fan speed auto indoor fm rpm depends on pipe temp sensor of in...

  • Page 74

    74 12.10 indication panel led power timer powerful/quiet nanoe-g econavi auto comfort color green orange orange blue green green light on operation on timer setting on powerful/quiet mode on nanoe-g on econavi on auto comfort on light off operation off timer setting off powerful/quiet mode off nanoe...

  • Page 75

    75 š remote control receiving sound o normal operation Î nanoe-g operation : beep o nanoe-g operation Î normal operation : beep o stop Î nanoe-g individual operation : beep o nanoe-g individual operation Î stop : long beep š power failure o during nanoe-g individual operation, if power failure occur...

  • Page 76

    76 o troubleshooting method press nanoe-g button or off/on button to stop the operation and check the nanoe-g connector at pcb. After that, press nanoe-g button again to confirm the nanoe-g indicator do not blinks. The 24 timer counter will be clear after 10 minutes of normal operation or when opera...

  • Page 77

    77 š eco navi stop conditions: o when eco navi button is pressed again. O when unit is off by off/on button. O when unit is off when off timer activates. O when unit is off by auto off/on button at indoor unit. O when powerful, quiet operation activates. O when ◄► button is pressed. š auto comfort /...

  • Page 78

    78 12.13.1.1 signal detection š human activity sensor will turns on according to infrared sensors signal detection. Signal detection human activity indicator sensor 1 sensor 2 possible detected human position area left center right 1 0 c ■ ■ □ 0 1 a □ ■ ■ b ■ □ ■ a & c ■ □ ■ b & c ■ □ ■ a & c ■ □ ■ ...

  • Page 79

    79 12.13.1.7 setting position judgment š according to installation position when there is only one activity area detected, the horizontal airflow direction louver position is fixed according to chart below: horizontal airflow direction louver position target area left installation center installatio...

  • Page 80

    80 12.13.2.1 eco navi and auto comf demo mode š to enable eco demo mode: š to disable eco demo mode: o transmit eco demo signal again. š operation details infrared sensor human activity sensor sensor 1 sensor 2 left center right vane position fan speed 1 0 ■ ■ □ 5 hi 1 1 ■ □ ■ auto swing hi 0 1 □ ■ ...

  • Page 81

    81 12.13.2.2 infrared sensor abnormality š abnormality detection: connector disconnection / wire cut abnormality o sensor judge hi level continuously for 25 seconds circuit abnormality o 70 seconds after power on, if infrared sensor judge lo level continuously for 25 seconds š error code judgment wh...

  • Page 82

    82 12.13.3 sunlight sensor š during econavi operation, the sunlight sensor detects sunlight intensity coming through windows and differentiates between sunny and cloudy or night to further optimize energy saving by adjusting the temperature. š sunlight judgment is as following 12.13.3.1 sunlight int...

  • Page 83

    83 12.13.3.3 judge ambient condition š according to sunlight intensity over a period of time, the system will analyze the ambient condition is sunny, cloudy or night. 12.13.3.4 temperature shift 12.13.3.5 sunlight sensor check mode š to enable sunlight sensor check mode, during unit is off (power st...

  • Page 84

    84 12.13.3.6 sunlight sensor abnormality š abnormality detection: o when econavi is on, if the sunlight intensity value below minimum level continuously for 24 hours, the sunlight sensor disconnection error counter will increase by 1 time. If the econavi is off, the 24 hours timer will be reset, but...

  • Page 85

    85 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 š capability supply to indoor unit is off (expansion valve cl...

  • Page 86

    86 13.4 automatic operation š this mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature. š during operation mode judgment, indoor fan motor (with speed of -lo) and outdoor fan...

  • Page 87: 14. Protection

    87 14. Protection control 14.1 protection control for all operations 14.1.1 restart control (time delay safety control) š 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 per...

  • Page 88

    88 14.1.4 compressor overheating prevention control š instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. š if compressor discharge temperature exceeds 107°c, compressor will be stopped, occurs 4 times per 20 min...

  • Page 89

    89 14.2 protection control for cooling & soft dry operation 14.2.1 outdoor air temperature control š the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. š this control will begin 1 minute after the compressor starts. š compresso...

  • Page 90

    90 14.2.6 odor cut control š to reduce the odor released from the unit. O start condition auto fan speed is selected during cool or dry operation. During freeze prevention control and timer preliminary operation, this control is not applicable. O control content depends on compressor conditions: 1. ...

  • Page 91: 15. Servicing

    91 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 operation...

  • Page 92

    92 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 sta...

  • Page 93: 16. Troubleshooting

    93 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 94

    94 16.1.1 relationship between the condition of the air conditioner and pressure and electric current cooling mode heating mode condition of the air conditioner low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refr...

  • Page 95

    95 16.2 breakdown self diagnosis function 16.2.1 self diagnosis function (three digits alphanumeric code) š once abnormality has occurred during operation, the unit will stop its operation, and timer led blinks. š although timer led goes off when power supply is turned off, if the unit is operated u...

  • Page 96

    96 16.3 error codes table.

  • Page 97

    97.

  • Page 98

    98 16.4 self-diagnosis method 16.4.1 h11 (indoor/outdoor abnormal communication) malfunction decision conditions š 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 š faulty ...

  • Page 99

    99 16.4.2 h12 (indoor/outdoor capacity rank mismatched) malfunction decision conditions š during startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction caused š wrong models interconnected. š wrong indoor unit or outdoor unit pcbs mounted. š indo...

  • Page 100

    100 16.4.3 h14 (indoor intake air temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector co...

  • Page 101

    101 16.4.4 h15 (compressor temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector connecti...

  • Page 102

    102 16.4.5 h16 (outdoor current transformer open circuit) malfunction decision conditions š 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 š ct def...

  • Page 103

    103 16.4.6 h19 (indoor fan motor – dc motor mechanism locked) malfunction decision conditions š 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 š operation stops due to short circuit i...

  • Page 104

    104 16.4.7 h23 (indoor pipe temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector conn...

  • Page 105

    105 16.4.8 h27 (outdoor air temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector connection. š ...

  • Page 106

    106 16.4.9 h28 (outdoor pipe temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector connection. ...

  • Page 107

    107 16.4.10 h30 (compressor discharge temperature sensor abnormality) malfunction decision conditions š during startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction caused š faulty con...

  • Page 108

    108 16.4.11 h32 (outdoor heat exchanger temperature sensor 2 abnormality) malfunction decision conditions š 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 š faulty...

  • Page 109

    109 16.4.12 h33 (unspecified voltage between indoor and outdoor) malfunction decision conditions š the supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction caused š wrong models interconnected. š wrong indoor unit and outdoor unit pcbs used. š indoor unit or o...

  • Page 110

    110 16.4.13 h34 (outdoor heat sink temperature sensor abnormality) malfunction decision conditions š 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 š faulty connector c...

  • Page 111

    111 16.4.14 h36 (outdoor gas pipe sensor abnormality) malfunction decision conditions š 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 š faulty connector connection. š f...

  • Page 112

    112 16.4.15 h37 (outdoor liquid pipe temperature sensor abnormality) malfunction decision conditions š 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 š faulty connect...

  • Page 113

    113 16.4.16 h97 (outdoor fan motor – dc motor mechanism locked) malfunction decision conditions š the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor. Malfunction caused š operation stops due to short circuit inside the fan motor winding. š o...

  • Page 114

    114 16.4.17 h98 (indoor high pressure protection) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions š during heating operation, the temperature detected by the indoor pipe temperature sensor is above 60°c. Malfunction caused š air short circuit a...

  • Page 115

    115 16.4.18 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 š freeze prevention control takes place (when indoor pipe temperature is lower than 2°c) malfunction caused š air short c...

  • Page 116

    116 16.4.19 f11 (4-way valve abnormality) malfunction decision conditions š when heating operation, when indoor pipe temperature is below 10°c š when cooling operation, when indoor pipe temperature is above 45°c malfunction caused š connector in poor contact š faulty sensor š faulty outdoor unit pcb...

  • Page 117

    117 16.4.20 f17 (indoor standby units freezing abnormality) malfunction decision conditions š 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 outdoor u...

  • Page 118

    118 16.4.21 f90 (power factor correction protection) malfunction decision conditions š 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 š dc voltage peak...

  • Page 119

    119 16.4.22 f91 (refrigeration cycle abnormality) malfunction decision conditions š during cooling, compressor frequency = fcmax. š during heating, compressor frequency > fhrated. š during cooling and heating operation, running current: 0.65a š during cooling, indoor intake - indoor pipe š during he...

  • Page 120

    120 16.4.23 f93 (compressor rotation failure) malfunction decision conditions š a compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction caused š compressor terminal disconnect š faulty outdoor pcb š faulty compressor ...

  • Page 121

    121 16.4.24 f95 (cooling high pressure abnormality) malfunction decision conditions š during operation of cooling, when outdoor unit heat exchanger high temperature data (61°c) is detected by the outdoor pipe temperature sensor. Malfunction caused š air short circuit at indoor unit š dust accumulati...

  • Page 122

    122 16.4.25 f96 (ipm overheating) malfunction decision conditions š during operating of cooling and heating, when ipm temperature data (100°c) is detected by the ipm temperature sensor. Multi models only o compressor overheating: during operation of cooling and heating, when the compressor ol is act...

  • Page 123

    123 16.4.26 f97 (compressor overheating) malfunction decision conditions š during operation of cooling and heating, when compressor tank temperature data (112°c) is detected by the compressor tank temperature sensor. Malfunction caused š faulty compressor tank temperature sensor š 2/3 way valve clos...

  • Page 124

    124 16.4.27 f98 (input over current detection) malfunction decision conditions š 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 transformer (ct) with the compress...

  • Page 125

    125 16.4.28 f99 (output over current detection) malfunction decision conditions š 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. Malfuncti...

  • Page 126

    126 warning 17. Disassembly and assembly instructions high voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 17.1 cs-e7nk cs-e9nk c...

  • Page 127

    127 17.1.1.3 to remove discharge grille.

  • Page 128

    128 17.1.1.4 to remove control board 17.1.1.5 to remove cross flow fan and indoor fan motor.

  • Page 129

    129.

  • Page 130

    130 17.2 cs-e18nk cs-e21nk cs-xe18nk cs-xe21nk 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 131

    131 17.2.1.3 to remove power electronic controller.

  • Page 132

    132 17.2.1.4 to remove discharge grille 17.2.1.5 to remove control board 1 17.2.1.6 to remove cross flow fan and indoor fan motor.

  • Page 133

    133.

  • Page 134

    134 17.3 outdoor electronic controller removal procedure 17.3.1 cu-e7nke cu-e9nke cu-e7nke-3 cu-e9nke-3 cu-e12nke-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 front panel. Fig. 2 3 r...

  • Page 135

    135 17.3.2 cu-e12nke cu-e15nke caution! When handling electronic controller, be careful of electrostatic discharge. 1 remove the 5 screws of the top panel. Fig. 1 2 remove the 8 screws of the front panel. Fig. 2 3 remove the screw of the terminal board cover. 4 remove the top cover of the control bo...

  • Page 136

    136 17.3.3 cu-e18nke cu-e21nke 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! When hand...

  • Page 137: 18. Technical

    137 18. Technical data 18.1 operation characteristics 18.1.1 cu-e7nke š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 17.600 18.100 18.600 19.100 19.600 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air tem...

  • Page 138

    138 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 1.800 1.900 2.000 2.100 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 2.180 2.190 2.200 2.210 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 139

    139 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 27.000 28.000 29.000 30.000 31.000 32.000 33.000 34.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 1.800 2.000...

  • Page 140

    140 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 2.650 2.700 2.750 2.800 2.850 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 2.920 2.940 2.960 2.980 3.000 3.020 3 4 5 6 7 8 9 1...

  • Page 141

    141 18.1.2 cu-e9nke š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 16.500 17.000 17.500 18.000 18.500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °c )...

  • Page 142

    142 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 2.300 2.400 2.500 2.600 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 2.480 2.490 2.500 2.510 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 143

    143 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 29.000 30.000 31.000 32.000 33.000 34.000 35.000 36.000 37.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 2.20...

  • Page 144

    144 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 3.250 3.300 3.350 3.400 3.450 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 3.320 3.340 3.360 3.380 3.400 3.420 3 4 5 6 7 8 9 1...

  • Page 145

    145 18.1.3 cu-e12nke š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 14.500 15.000 15.500 16.000 16.500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °c ...

  • Page 146

    146 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 3.200 3.300 3.400 3.500 3.600 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 3.800 3.900 4.000 4.100 3 4 5 6 7 8 9 10 11 12 13...

  • Page 147

    147 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 29.000 31.000 33.000 35.000 37.000 39.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 2.600 3.100 3.600 4.100 4...

  • Page 148

    148 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 3.800 3.850 3.900 3.950 4.000 4.050 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 4.300 4.320 4.340 4.360 4.380 4.400 4.420 3 4...

  • Page 149

    149 18.1.4 cu-e15nke š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 13.300 13.800 14.300 14.800 15.300 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °c ...

  • Page 150

    150 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 3.800 3.900 4.000 4.100 4.200 4.300 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 5.400 5.500 5.600 5.700 5.800 3 4 5 6 7 8 9...

  • Page 151

    151 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 32.000 34.000 36.000 38.000 40.000 42.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 3.400 3.900 4.400 4.900 5...

  • Page 152

    152 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 5.050 5.100 5.150 5.200 5.250 5.300 5.350 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 6.400 6.500 6.600 6.700 3 4 5 6 7 8 9 1...

  • Page 153

    153 18.1.5 cu-e7nke-3 š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 17.600 18.100 18.600 19.100 19.600 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °c...

  • Page 154

    154 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 1.800 1.900 2.000 2.100 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 2.180 2.190 2.200 2.210 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 155

    155 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 27.000 28.000 29.000 30.000 31.000 32.000 33.000 34.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 1.800 2.000...

  • Page 156

    156 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 2.600 2.700 2.800 2.900 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 2.920 2.940 2.960 2.980 3.000 3.020 3 4 5 6 7 8 9 10 11 1...

  • Page 157

    157 18.1.6 cu-e9nke-3 š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 16.500 17.000 17.500 18.000 18.500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °c...

  • Page 158

    158 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 2.300 2.400 2.500 2.600 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 2.480 2.490 2.500 2.510 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 159

    159 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 29.000 30.000 31.000 32.000 33.000 34.000 35.000 36.000 37.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 2.20...

  • Page 160

    160 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 3.200 3.300 3.400 3.500 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 3.320 3.340 3.360 3.380 3.400 3.420 3 4 5 6 7 8 9 10 11 1...

  • Page 161

    161 18.1.7 cu-e12nke-3 š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 14.200 14.700 15.200 15.700 16.200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 outdoor air temperature (°c) ou tle t a ir te m pe at ur e ( °...

  • Page 162

    162 š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 3.200 3.300 3.400 3.500 3.600 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) c ool in g ca pa ci ty ( kw ) 4.080 4.090 4.100 4.110 4.120 3 4 5 6 7 8 9 10 11...

  • Page 163

    163 š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 29.000 30.000 31.000 32.000 33.000 34.000 35.000 36.000 37.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tle t a ir t emp ea tu re ( °c ) 230 2.80...

  • Page 164

    164 š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 4.200 4.300 4.400 4.500 3 4 5 6 7 8 9 10 11 12 13 14 15 piping length (m) he at in g ca pa ci ty ( kw ) 4.980 5.000 5.020 5.040 5.060 5.080 5.100 5.120 3 4 5 6 7...

  • Page 165

    165 18.1.8 cu-e18nke cooling characteristic at different outdoor air temperature š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 13.600 14.100 14.600 15.100 15.600 16.100 16.600 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37...

  • Page 166

    166 cooling characteristic at different piping length š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 4.800 4.900 5.000 5.100 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 piping length (m) c ool in g ca pa ci ...

  • Page 167

    167 heating characteristic at different outdoor air temperature š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 30.000 32.000 34.000 36.000 38.000 40.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tl...

  • Page 168

    168 heating characteristic at different piping length š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 5.760 5.780 5.800 5.820 5.840 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 piping length (m) he at in g ca pa...

  • Page 169

    169 18.1.9 cu-e21nke cooling characteristic at different outdoor air temperature š cooling characteristic [condition] indoor temperature: 27/19°c remote condition: high fan speed, cool 16°c comp. Hz: f c 13.200 13.700 14.200 14.700 15.200 15.700 16.200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37...

  • Page 170

    170 cooling characteristic at different piping length š piping length characteristic [condition] indoor temperature: 27/19°c, 35/-°c remote condition: high fan speed, cool 16°c comp. Hz: f c 6.100 6.200 6.300 6.400 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 piping length (m) c ool in g ca pa ci ...

  • Page 171

    171 heating characteristic at different outdoor air temperature š heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 31.000 33.000 35.000 37.000 39.000 41.000 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 outdoor air temperature (°c) ou tl...

  • Page 172

    172 heating characteristic at different piping length š piping length characteristic [condition] indoor temperature: 20/-°c, 7/6°c remote condition: high fan speed, heat 30°c comp. Hz: f h 7.140 7.160 7.180 7.200 7.220 7.240 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 piping length (m) he at in g...

  • Page 173

    173 18.2 sensible capacity chart š cu-e7nke cu-e7nke-3 230v outdoor temp. (°c) 30 35 40 46 indoor wet bulb temp. 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 0.47 19.5°c 2.23 1.61 0.44 2.09 1.55 0.47 1.94 1.49 0.50 1.77 1.42 0...

  • Page 174

    174 š cu-e18nke 230v outdoor temp. (°c) 30 35 40 46 indoor wet bulb temp. 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 4.08 1.40 5.55 3.93 1.5...

  • Page 175

    175 19. Exploded view and replacement parts list 19.1 indoor unit 19.1.1 cs-e7nkew cs-e9nkew cs-e12nkew cs-e15nkew cs-xe7nkew cs-xe9nkew cs-xe12nkew cs-xe15nkew note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard servi...

  • Page 176

    176 ref. No. Part name & description qty. Cs-e7nkew cs-e9nkew cs-e12nkew cs-e15nkew remark 1 chassis complete 1 cwd50c1653 ← ← ← 2 fan motor 1 arw7628ac ← ← ← o 3 cross-flow fan complete 1 cwh02c1076 ← ← ← 4 bearing assy 1 cwh64k007 ← ← ← o 5 screw - cross-flow fan 1 cwh551146 ← ← ← 6 generator comp...

  • Page 177

    177 52 shock absorber ( r ) 1 cwg713387 ← ← ← 53 c.C. Case 1 cwg567354 ← ← ← (note) š all parts are supplied from papamy, malaysia (vendor code: 00029488). š “o” marked parts are recommended to be kept in stock..

  • Page 178

    178 ref. No. Part name & description qty. Cs-xe7nkew cs-xe9nkew cs-xe12nkew cs-xe15nkew remark 1 chassis complete 1 cwd50c1666 ← ← ← 2 fan motor 1 arw7628ac ← ← ← o 3 cross-flow fan complete 1 cwh02c1076 ← ← ← 4 bearing assy 1 cwh64k007 ← ← ← o 5 screw - cross-flow fan 1 cwh551146 ← ← ← 6 generator ...

  • Page 179

    179 52 shock absorber ( r ) 1 cwg713387 ← ← ← 53 c.C. Case 1 cwg567354 ← ← ← (note) š all parts are supplied from papamy, malaysia (vendor code: 00029488). š “o” marked parts are recommended to be kept in stock..

  • Page 180

    180 19.1.2 cs-e18nkew cs-e21nkew cs-xe18nkew cs-xe21nkew 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 181

    181 ref. No. Part name & description qty. Cs-e18nkew cs-e21nkew cs-xe18nkew cs-xe21nkew remark 1 chassis complete 1 cwd50c1654 ← cwd50c1604 ← 2 fan motor 1 arw7627ac ← ← ← o 3 cross-flow fan complete 1 cwh02c1077 ← ← ← 4 bearing assy 1 cwh64k007 ← ← ← o 5 screw - cross-flow fan 1 cwh551146 ← ← ← 6 g...

  • Page 182

    182 52 shock absorber ( r ) 1 cwg713403 ← ← ← 53 c.C. Case 1 cwg567454 ← ← ← (note) š all parts are supplied from papamy, malaysia (vendor code: 00029488). š “o” marked parts are recommended to be kept in stock..

  • Page 183

    183 19.2 outdoor unit 19.2.1 cu-e7nke cu-e9nke cu-e7nke-3 cu-e9nke-3 cu-e12nke-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 184

    184 ref. No. Part name & description qty. Cu-e7nke cu-e9nke remark 1 chassis complete 1 cwd50k2073 ← 2 sound proof material 1 cwg302447 cwg302292 3 fan motor bracket 1 cwd541089 ← 4 screw - fan motor bracket 2 cwh551217 ← 5 fan motor 1 cwa951720 cwa951721 o 6 screw - fan motor mount 4 cwh55252j ← 7 ...

  • Page 185

    185 ref. No. Part name & description qty. Cu-e7nke-3 cu-e9nke-3 cu-e12nke-3 remark 1 chassis complete 1 cwd50k2073 ← ← 2 sound proof material 1 cwg302314 ← ← 3 fan motor bracket 1 cwd541089 ← ← 4 screw - fan motor bracket 2 cwh551217 ← ← 5 fan motor 1 cwa951720 cwa951721 cwa951699 o 6 screw - fan mo...

  • Page 186

    186 19.2.2 cu-e12nke cu-e15nke 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 187

    187 ref. No. Part name & description qty. Cu-e12nke cu-e15nke remark 1 chassis complete 1 cwd52k1277 ← 2 sound proof material 1 cwg302719 ← 3 fan motor bracket 1 cwd541167 ← 4 screw - fan motor bracket 2 cwh551217 ← 5 fan motor 1 ars6411ac cwa951830 o 6 screw - fan motor mount 4 cwh55252j ← 7 propel...

  • Page 188

    188 19.2.3 cu-e18nke cu-e21nke 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 189

    189 ref. No. Part name & description qty. Cu-e18nke cu-e21nke remark 1 chassis complete 1 cwd52k1261 ← 2 anti - vibration bushing 3 cwh50077 ← 3 compressor 1 5rd132xba21 ← o 4 nut - compressor mount 3 cwh56000j ← 5 sound proof material 1 cwg302629 ← 6 fan motor bracket 1 cwd541153 ← 7 fan motor 1 ar...