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Panasonic CS-E12NKDW Service Manual

Other manuals for CS-E12NKDW: Operating Instructions Manual

Summary of CS-E12NKDW

  • Page 1

    © panasonic ha air-conditioning (m) sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law. Order no: phaam1112080c2 indoor unit outdoor unit cs-e7nkdw cs-e9nkdw cs-e12nkdw cs-e15nkdw cs-e18nkdw cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd cu-e18nkd please file and use this manual toge...

  • Page 2: Table of Contents

    2 table of contents 1. Safety precautions .............................................3 2. Specification .......................................................5 3. Features.............................................................19 4. Location of controls and components..........20 4.1 indoor ...

  • Page 3: 1. Safety Precautions

    3 caution warning warning 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 c...

  • 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 cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, ...

  • Page 5: 2. Specification

    5 2. Specification indoor cs-e7nkdw cs-e9nkdw model outdoor cu-e7nkd cu-e9nkd performance test condition jis jis phase, hz single, 50 single, 50 power supply v 220 230 220 230 min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Kw 0.75 2.05 2.40 0.75 2.05 2.40 0.85 2.50 3.00 0.85 2.50 3.00 b...

  • 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 590 630 qlo heat rpm 680 670 cool rpm 670 730 lo heat rpm 730 820 cool rpm 860 950 me heat rpm 910 1030 cool rpm 1050 1180 hi heat ...

  • Page 7

    7 inner diameter mm 16 16 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 (blue coat) aluminium ...

  • Page 8

    8 indoor cs-e12nkdw cs-e15nkdw model outdoor cu-e12nkd cu-e15nkd performance test condition jis jis phase, hz single, 50 single, 50 power supply v 220 230 220 230 min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Kw 0.85 3.50 4.00 0.85 3.50 4.00 0.85 4.20 5.00 0.85 4.20 5.00 btu/h 2900 119...

  • 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 630 730 qlo heat rpm 950 1000 cool rpm 830 870 lo heat rpm 1010 1080 cool rpm 1040 1070 me heat rpm 1150 1210 cool rpm 1260 1270 hi...

  • Page 10

    10 inner diameter mm 16 16 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 (blue coat) aluminium...

  • Page 11

    11 indoor cs-e18nkdw model outdoor cu-e18nkd performance test condition jis phase, hz single, 50 power supply v 220 230 min. Mid. Max. Min. Mid. Max. Kw 0.98 5.00 6.00 0.98 5.00 6.00 btu/h 3340 17100 20500 3340 17100 20500 capacity kcal/h 840 4300 5160 840 4300 5160 running current a - 6.9 - - 6.6 -...

  • Page 12

    12 type cross-flow fan material asg30k1 motor type transistor (8-poles) input power w 94.8 output power w 40 cool rpm 960 qlo heat rpm 1040 cool rpm 1040 lo heat rpm 1120 cool rpm 1160 me heat rpm 1240 cool rpm 1280 hi heat rpm 1360 cool rpm 1390 indoor fan speed shi heat rpm 1430 type propeller fan...

  • Page 13

    13 inner diameter mm 16 drain hose length mm 650 fin material aluminium (pre coat) fin type slit fin row x stage x fpi 2 x 15 x 17 indoor heat exchanger size (w x h x l) mm 810 x 315 x 25.4 fin material aluminium (blue coat) fin type corrugated fin row x stage x fpi 2 x 31 x 19 outdoor heat exchange...

  • Page 14

    14 multi split combination possibility: o a single outdoor unit enables air conditioning of up to two separate rooms for u-2e15gbe, u-2e18cbpg..

  • Page 15

    15 outdoor unit : u-2e15gbe outdoor unit : u-2e18cbpg.

  • Page 16

    16 outdoor unit : u-3e18jbe.

  • Page 17

    17 outdoor unit : u-4e23jbe.

  • Page 18

    18.

  • Page 19: 3.   Features

    19 3. Features inverter technology o wider output power range o energy saving o quick cooling o quick heating o more precise temperature control air purifying system with nanoe-g o deactivates and removes bacterial, viruses and mould environment protection o non-ozone depletion substances refrigeran...

  • Page 20

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

  • Page 21: 5. Dimensions

    21 5. Dimensions 5.1 indoor unit 5.1.1 cs-e7nk cs-e9nk cs-e12nk cs-e15nk.

  • Page 22

    22 5.1.2 cs-e18nk.

  • Page 23

    23 5.2 outdoor unit 5.2.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd 5.2.2 cu-e18nkd.

  • Page 24

    24 6. Refrigeration cycle diagram 6.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd.

  • Page 25

    25 6.2 cu-e18nkd.

  • Page 26: 7. Block Diagram

    26 7. Block diagram 7.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd.

  • Page 27

    27 7.2 cu-e18nkd.

  • Page 28

    28 8. Wiring connection diagram 8.1 indoor unit 8.1.1 cs-e7nkdw cs-e9nkdw cs-e12nkdw cs-e15nkdw.

  • Page 29

    29 8.1.2 cs-e18nkdw.

  • Page 30

    30 8.2 outdoor unit 8.2.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd.

  • Page 31

    31 8.2.2 cu-e18nkd.

  • Page 32

    32 9. Electronic circuit diagram 9.1 indoor unit 9.1.1 cs-e7nkdw cs-e9nkdw cs-e12nkdw cs-e15nkdw.

  • Page 33

    33 9.1.2 cs-e18nkdw.

  • Page 34

    34 9.2 outdoor unit 9.2.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd.

  • Page 35

    35 9.2.2 cu-e18nkd.

  • Page 36: 10.  Printed Circuit Board

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

  • Page 37

    37 10.1.2 indicator and receiver printed circuit board 10.1.3 high voltage power supply printed circuit board 10.1.4 comparator printed circuit board.

  • Page 38

    38 10.1.5 human activity sensor printed circuit board.

  • Page 39

    39 10.2 outdoor unit 10.2.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd.

  • Page 40

    40 10.2.2 cu-e18nkd.

  • Page 41: 11. Installation

    41 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. A place w...

  • Page 42

    42 11.2 indoor unit 11.2.1 how to fix installation plate the mounting wall shall be strong and solid enough to prevent it 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 43

    43 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 44

    44 11.2.4 connect the cable to the indoor unit 1 the inside and outside connection 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 45

    45 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 46

    46 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 strong ...

  • Page 47

    47 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 48

    48 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 screw. 7 for wire stripping and connection requirement, refer to instruction 11.2.4 of indoor unit. Warning this equipment must be proper...

  • Page 49: 12.  Operation and Control

    49 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 50

    50 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, indoor intake air temperature and outdoor air temperature. During operation mode judgment, indoor fan motor (with speed of lo-) a...

  • Page 51

    51 [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 counter increase, fan motor ...

  • Page 52

    52 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 for cs-e7...

  • Page 53

    53 b. Quiet operation stop condition 1 when one of the following conditions is satisfied, quiet operation stops: a. Powerful/quiet button is pressed again. B. Stop by off/on switch. C. Timer “off” activates. D. Auto comfort button is pressed. E. Econavi button is pressed. F. Mild dry cooling button ...

  • Page 54

    54 12.8.1 on timer control on timer 1 and on timer 2 can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide a comfortable environment when reaching the set on time. 60 minutes before the set time, indoor (at fan speed of lo-) and...

  • Page 55

    55 12.11 nanoe-g operation this operation provides clean air by producing great amount of negative ions and distribute through the discharge airflow to capture or deactivate molds, bacteria or viruses. Nanoe-g operation start condition o during unit running at any operation mode, if nanoe-g operatio...

  • Page 56

    56 nanoe-g check mode o to enable nanoe-g check mode, during nanoe-g operation on: o if there is abnormal discharge, nanoe-g indicator blinks immediately. Error detection control when nanoe-g indicator blinks, it indicates error listed below: o nanoe-g connector at main pcb open judgment method duri...

  • Page 57

    57 troubleshooting method press nanoe-g button or off/on button to stop the operation. Change nanoe-g high voltage power supply or main pcb. When lo-feedback voltage supplied to nanoe-g system during nanoe-g operation on, nanoe-g indicator and timer indicator stop blinking. 12.12 mild dry cooling op...

  • Page 58

    58 12.13 econavi and auto comfort 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: econavi and auto comfort operation...

  • Page 59

    59 econavi and auto comfort demo mode to enable eco demo mode, during unit is off (power standby): to disable eco demo mode: transmit eco demo signal again. Control details: during econavi and auto comfort demo mode, operation led on and horizontal vane will set to auto swing. When hi activity judge...

  • Page 60

    60 econavi and auto comfort operation could on when any of the following conditions is fulfilled: during forced cooling or forced heating operation. Power failure econavi and auto comfort operation will be resuming after recovered from power failure. Timer operation when unit is turn on by on timer ...

  • Page 61

    61 econavi & auto comfort sensor abnormality check mode purpose is to improve sensor serviceability when sensor is malfunction. 1. Control starting condition to enable infrared sensor check mode, during econavi operation on: 2. Control ending condition. When all of the conditions are formed operatio...

  • Page 62

    62 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 clos...

  • Page 63

    63 13.4 automatic operation 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. During operation mode judgment, indoor fan motor (with speed of -lo) and outdoor fan mot...

  • Page 64: 14. Protection

    64 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 perio...

  • Page 65

    65 14.1.4 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, compressor will be stopped, occurs 4 times per 20 minutes...

  • Page 66

    66 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. Compressor freq...

  • Page 67

    67 14.2.6 odor cut control 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: compr...

  • Page 68: 15. Servicing

    68 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 69

    69 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 70: 16. Troubleshooting

    70 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 71

    71 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 72

    72 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 under...

  • Page 73

    73 16.3 error code table.

  • Page 74

    74.

  • Page 75

    75 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 indo...

  • Page 76

    76 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. Indoor unit ...

  • Page 77

    77 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 connect...

  • Page 78

    78 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. F...

  • Page 79

    79 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 defecti...

  • Page 80

    80 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 inside...

  • Page 81

    81 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 connectio...

  • Page 82

    82 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 83

    83 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. Faulty ...

  • Page 84

    84 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. Faul...

  • Page 85

    85 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 sensor are used to determine sensor errors. Malfunction caused faulty connecto...

  • Page 86

    86 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 conn...

  • Page 87

    87 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 outdoor un...

  • Page 88

    88 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 connec...

  • Page 89

    89 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. Faulty s...

  • Page 90

    90 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 connector co...

  • Page 91

    91 16.4.17 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. Operatio...

  • Page 92

    92 16.4.18 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°c. Malfunction caused air short circuit at ind...

  • Page 93

    93 16.4.19 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°c) malfunction caused air short circui...

  • Page 94

    94 16.4.20 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 unit pcb 4-way valv...

  • Page 95

    95 16.4.21 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 outdoor unit ...

  • Page 96

    96 16.4.22 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 due ...

  • Page 97

    97 16.4.23 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 during heating, indo...

  • Page 98

    98 16.4.24 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 troublesh...

  • Page 99

    99 16.4.25 f95 (cooling high pressure abnormality) malfunction decision conditions during operation of cooling, when outdoor unit heat exchanger high temperature data (61°c) is detected by the outdoor pipe temperature sensor. Malfunction caused air short circuit at indoor unit dust accumulation on t...

  • Page 100

    100 16.4.26 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 o compressor overheating: during operation of cooling and heating, when the compressor ol is activ...

  • Page 101

    101 16.4.27 f97 (compressor overheating) malfunction decision conditions during operation of cooling and heating, when compressor tank temperature data (112°c) is detected by the compressor tank temperature sensor. Malfunction caused faulty compressor tank temperature sensor 2/3 way valve closed ref...

  • Page 102

    102 16.4.28 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 transformer (ct) with the compressor...

  • Page 103

    103 16.4.29 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. Malfunction...

  • Page 104

    104 warning 17. Disassembly and assembly instructions high voltages 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 ...

  • Page 105

    105 figure 3 figure 4 17.1.1.3 to remove discharge grille figure 5.

  • Page 106

    106 17.1.1.4 to remove control board figure 6 17.1.1.5 to remove cross flow fan and indoor fan motor figure 7 figure 8.

  • Page 107

    107 figure 9 figure 10

  • Page 108

    108 17.2 cs-e18nk 17.2.1 indoor electronic controllers, cross flow fan and indoor fan motor removal procedures 17.2.1.1 to remove front grille figure 11 17.2.1.2 to remove horizontal vane figure 12 17.2.1.3 to remove electronic controller figure 13.

  • Page 109

    109 figure 14 figure 15 17.2.1.4 to remove discharge grille figure 16.

  • Page 110

    110 17.2.1.5 to remove control board figure 17 17.2.1.6 to remove cross flow fan and indoor fan motor figure 18 figure 19.

  • Page 111

    111 figure 20 figure 21.

  • Page 112

    112 17.3 outdoor electronic controller removal procedure 17.3.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd 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 remove the scre...

  • Page 113

    113 17.3.2 cu-e18nkd 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 handling elect...

  • Page 114: 18. Technical

    114 18. Technical data 18.1 operation characteristics 18.1.1 cs-e7nkd 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 tempe...

  • Page 115

    115 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 ) 1.070 1.080 1.090 1.100 1.110 1.120 1.130 3 4 5 6 7 8 9 1...

  • Page 116

    116 heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 27.000 29.000 31.000 33.000 35.000 -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 em pe rat ur e ( °c ) 220 230 1.800 2.000 2.200 2.400 2.60...

  • Page 117

    117 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 ) 2.600 2.620 2.640 2.660 3 4 5 6 7 8 9 10 11 12 13 14 ...

  • Page 118

    118 18.1.2 cs-e9nkd 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 t em pe rat ur e ( °c ) ...

  • Page 119

    119 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 ) 1.070 1.080 1.090 1.100 1.110 1.120 1.130 3 4 5 6 7 8 9 1...

  • Page 120

    120 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 -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 em pe rat ur e ( °c ) 220 230 2.200 2.400 2.600 2.800 3.00...

  • Page 121

    121 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 ) 2.340 2.360 2.380 2.400 3 4 5 6 7 8 9 10 11 12 13 14 ...

  • Page 122

    122 18.1.3 cs-e12nkd 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 t em pe rat ur e ( °c )...

  • Page 123

    123 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 ) 0.920 0.930 0.940 0.950 0.960 0.970 3 4 5 6 7 8 9 1...

  • Page 124

    124 heating characteristic [condition] indoor temperature: 20/-°c remote condition: high fan speed, heat 30°c comp. Hz: f h 29.800 31.800 33.800 35.800 37.800 -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 em pe rat ur e ( °c ) 220 230 2.800 3.300 3.800 4.300 4.80...

  • Page 125

    125 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 4.250 4.300 4.350 4.400 4.450 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 ) 2.420 2.440 2.460 2.480 3 4 5 6 7 8 9 10 11 12 ...

  • Page 126

    126 18.1.4 cs-e15nkd 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 t em pe rat ur e ( °c )...

  • Page 127

    127 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 ) 0.890 0.900 0.910 0.920 0.930 0.940 3 4 5 6 7...

  • Page 128

    128 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 em pe rat ur e ( °c ) 220 230 3.400 3.900 4.400 4.9...

  • Page 129

    129 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 ) 2.740 2.760 2.780 2.800 2.820 3 4 5 6 7 8...

  • Page 130

    130 18.1.5 cs-e18nkd 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 39 41 43 outdoor air temperature (°c) ou tle t a ir t em pe r...

  • Page 131

    131 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 ty ( kw ) 0.900 0.910 0.920 0.930 0.940 3 4 5 6 7 8 ...

  • Page 132

    132 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 tle t a ir t em pe rat ur e ( °c ) 220 230 4.100 4.600 5.100 5.6...

  • Page 133

    133 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 ci ty ( kw ) 2.770 2.780 2.790 2.800 3 4 5 6 7 8 9 ...

  • Page 134

    134 18.2 sensible capacity chart cu-e7nkd outdoor temp. (°c) 220/230v 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 0.54 22.0°...

  • Page 135

    135 cu-e18nkd outdoor temp. (°c) 220/230v 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...

  • Page 136

    136 19. Exploded view and replacement parts list 19.1 indoor unit 19.1.1 cs-e7nkdw cs-e9nkdw cs-e12nkdw cs-e15nkdw 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 137

    137 ref. No. Part name & description qty. Cs-e7nkdw cs-e9nkdw cs-e12nkdw cs-e15nkdw remark 1 chassis complete 1 cwd50c1653 ← ← ← 2 fan motor 1 arw7628ac ← ← ← o 3 cross flow fan complete 1 cwh02c1076 ← ← ← 4 bearing ass'y 1 cwh64k007 ← ← ← 5 screw - cross flow fan 1 cwh551146 ← ← ← 6 generator compl...

  • Page 138

    138 50 bag 1 cwg861497 ← ← ← 51 shock absorber ( l ) 1 cwg713386 ← ← ← 52 shock absorber ( r ) 1 cwg713387 ← ← ← 53 c.C.Case 1 cwg567358 cwg567359 cwg567360 cwg567361 (note) all parts are supplied from phaam, malaysia (vendor code: 00029488). “o” marked parts are recommended to be kept in stock..

  • Page 139

    139 19.1.2 cs-e18nkdw 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 140

    140 ref. No. Part name & description qty. Cs-e18nkdw remark 1 chassis complete 1 cwd50c1654 2 fan motor 1 arw7627ac o 3 cross flow fan complete 1 cwh02c1077 4 bearing ass'y 1 cwh64k007 5 screw - cross flow fan 1 cwh551146 6 generator complete 1 cwh94c0043 7 evaporator 1 cwb30c3860 8 flare nut (liqui...

  • Page 141

    141 49 installation instruction 1 cwf615103 50 bag 1 cwg861498 51 shock absorber ( l ) 1 cwg713402 52 shock absorber ( r ) 1 cwg713403 53 c.C.Case 1 cwg567974 (note) all parts are supplied from phaam, malaysia (vendor code: 00029488). “o” marked parts are recommended to be kept in stock..

  • Page 142

    142 19.2 outdoor unit 19.2.1 cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd 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 143

    143 ref. No. Description & name qty cu-e7nkd cu-e9nkd cu-e12nkd cu-e15nkd remark 1 chassis ass’y 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 cwa951699 cwa9517...

  • Page 144

    144 19.2.2 cu-e18nkd 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 145

    145 ref. No. Description & name qty cu-e18nkd remark 1 chassis ass’y 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 bracket fan motor 1 cwd541153 7 fan motor 1 arw8401ac o 8 screw - fan motor b...