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Panasonic CS-MKE12NKU Technical & Service Manual

Other manuals for CS-MKE12NKU: Submittal Data

Summary of CS-MKE12NKU

  • Page 1

    Cu-3ke19nbu (3-room multi unit) cu-4ke24nbu (4-room multi unit) cu-4ke31nbu (4-room multi unit) indoor unit : cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku dc inverter multi-system air conditioner wall mounted type indoor unit cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku pro...

  • Page 2: Safety Precautions

    • before doing repair work, please read the " safety precautions" carefully and fully understand them. • the precautionary items here are divided into " warning" and " caution" items. Items in particular which may cause death or serious injury to the service personnel if the work is not performed co...

  • Page 3

    Warning if refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite. If refrigerant gas leaks during the work, ventilate the room. If refrigerant gas catches fire, harmful gas may be generated. Do not mix any gas other than the specified refrigerant gas i...

  • Page 4: Table of Contents

    Table of contents safety precautions table of contents applicable multi-outdoor units 1. Operating range 2. Specifications 2-1. Unit specifications 2-2. Major component specifications 2-3. Other component specifications 3. Dimensional data 4. Refrigerant flow diagram 4-1. Refrigerant flow diagram 5....

  • Page 5

    Applicable multi-outdoor units cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku 3-room cu-3ke19nbu yes yes yes yes no 4-room cu-4ke24nbu yes yes yes yes yes 4-room cu-4ke31nbu yes yes yes yes yes indoor unit multi-outdoor unit 5.

  • Page 6: 1.  Operating Range

    95 °f db / 71 °f wb 67 °f db / 57 °f wb 80 °f db / 67 °f wb – db / – wb 1. Operating range maximum minimum maximum minimum 115° f db 14° f db 75° f db / 65 °f wb – db / 0 °f wb temperature indoor air intake temp. Outdoor air intake temp. Cooling heating 6.

  • Page 7: 2.  Specifications

    2. Specifications 2-1. Unit specifications indoor unit cs-mke7nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.11 25 0.11 25 7,500 2.20 8,500 2.50 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth...

  • Page 8

    Indoor unit cs-mke7nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.12 25 0.12 25 7,500 2.20 8,500 2.50 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (m 3...

  • Page 9

    Indoor unit cs-mke9nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.15 35 0.15 35 9,000 2.65 12,200 3.60 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (m ...

  • Page 10

    Indoor unit cs-mke9nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.17 35 0.17 35 9,000 2.65 12,200 3.60 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (m ...

  • Page 11

    Indoor unit cs-mke12nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.15 35 0.15 35 11,900 3.50 14,300 4.20 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 12

    Indoor unit cs-mke12nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.17 35 0.17 35 11,900 3.50 14,300 4.20 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 13

    Indoor unit cs-mke18nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.15 35 0.15 35 17,500 5.15 20,400 6.00 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 14

    Indoor unit cs-mke18nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.17 35 0.17 35 17,500 5.15 20,400 6.00 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 15

    Indoor unit cs-mke24nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.20 45 0.20 45 24,200 7.10 29,000 8.50 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 16

    Indoor unit cs-mke24nku data subject to change without notice. Vertical db-a indoor : hi/me/lo/qt* air filter refrigerant 0.22 45 0.22 45 24,200 7.10 29,000 8.50 shipping volume cooling heating cooling heating net shipping package dimensions weight width depth height height ib. (kg) ib. (kg) cu.Ft (...

  • Page 17

    Indoor unit cs-mke7nku mp24z3 flap motor type stepping motor rating model coil resistance ohm (ambient temp. 77 °f (25 °c)) each pair of terminal : 400 +/- 7% dc 12v aluminum plate fin / copper tube 2 19.5 2.02 (0.188) face area coil rows fins per inch heat exchanger coil ft 2 (m 2 ) data subject to...

  • Page 18

    Indoor unit cs-mke9nku mp24z3 flap motor type stepping motor rating model coil resistance ohm (ambient temp. 77 °f (25 °c)) each pair of terminal : 400 +/- 7% dc 12v aluminum plate fin / copper tube 2 19.5 2.02 (0.188) face area coil rows fins per inch heat exchanger coil ft 2 (m 2 ) data subject to...

  • Page 19

    Indoor unit cs-mke12nku mp24z3 flap motor type stepping motor rating model coil resistance ohm (ambient temp. 77 °f (25 °c)) each pair of terminal : 400 +/- 7% dc 12v aluminum plate fin / copper tube 2 19.5 2.02 (0.188) face area coil rows fins per inch heat exchanger coil ft 2 (m 2 ) data subject t...

  • Page 20

    Indoor unit cs-mke18nku mp24z3 flap motor type stepping motor rating model coil resistance ohm (ambient temp. 77 °f (25 °c)) each pair of terminal : 400 +/- 7% dc 12v aluminum plate fin / copper tube 2 19.5 3.07 (0.285) face area coil rows fins per inch heat exchanger coil ft 2 (m 2 ) data subject t...

  • Page 21

    Indoor unit cs-mke24nku mp24z3 flap motor type stepping motor rating model coil resistance ohm (ambient temp. 77 °f (25 °c)) each pair of terminal : 400 +/- 7% dc 12v aluminum plate fin / copper tube 2 19.5 3.07 (0.285) face area coil rows fins per inch heat exchanger coil ft 2 (m 2 ) data subject t...

  • Page 22

    2-3. Other component specifications indoor air temp sensor ptm-d51h- s4-1 th2 model no. Of sensor sensor name 1 1 1 quantity of sensor 0 0 ptm-d51h- s4-2 th2 0 0 0 1 1 cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku indoor heat exch...

  • Page 23: 3.  Dimensional Data

    3. Dimensional data indoor unit cs-mke7nku cs-mke9nku cs-mke12nku unit: inch(mm) (852-0-0010-215-00-0) 23.

  • Page 24

    Indoor unit cs-mke18nku cs-mke24nku unit: inch(mm) (852-0-0010-216-00-0) 24.

  • Page 25

    O.D. 3/8" (9.52 mm) o.D. 1/4" (6.35 mm) o.D. 1/2" (12.7 mm) o.D. 1/4" (6.35 mm) o.D. 5/8" (15.88 mm) o.D. 1/4" (6.35 mm) 4. Refrigerant flow diagram 4-1. Refrigerant flow diagram indoor unit cs-mke7nku cs-mke9nku cs-mke12nku indoor unit cs-mke18nku indoor unit cs-mke24nku indoor heat exchanger cooli...

  • Page 26: 5.  Performance Data

    Horizontal distance (ft.) axis air velocity (ft./sec.) v e rtical distance (ft.) room air temp.:70°f (21.1°c) fan speed:high heating horizontal distance (ft.) axis air velocity (ft./sec.) vertical distance (ft.) room air temp.:80°f (26.7°c) fan speed:high cooling : flap angle 0 ° , : axis air veloci...

  • Page 27

    Indoor unit cs-mke9nku horizontal distance (ft.) axis air velocity (ft./sec.) v e rtical distance (ft.) room air temp.:70°f (21.1°c) fan speed:high heating horizontal distance (ft.) axis air velocity (ft./sec.) vertical distance (ft.) room air temp.:80°f (26.7°c) fan speed:high cooling : flap angle ...

  • Page 28

    Indoor unit cs-mke12nku horizontal distance (ft.) axis air velocity (ft./sec.) v e rtical distance (ft.) room air temp.:70°f (21.1°c) fan speed:high heating horizontal distance (ft.) axis air velocity (ft./sec.) vertical distance (ft.) room air temp.:80°f (26.7°c) fan speed:high cooling : flap angle...

  • Page 29

    Indoor unit cs-mke18nku horizontal distance (ft.) axis air velocity (ft./sec.) v e rtical distance (ft.) room air temp.:70°f (21.1°c) fan speed:high heating horizontal distance (ft.) axis air velocity (ft./sec.) vertical distance (ft.) room air temp.:80°f (26.7°c) fan speed:high cooling : flap angle...

  • Page 30

    Indoor unit cs-mke24nku horizontal distance (ft.) axis air velocity (ft./sec.) v e rtical distance (ft.) room air temp.:70°f (21.1°c) fan speed:high heating horizontal distance (ft.) axis air velocity (ft./sec.) vertical distance (ft.) room air temp.:80°f (26.7°c) fan speed:high cooling : flap angle...

  • Page 31: 6.  Electrical Data

    Controller ind lamp assy 1 2 4 5 1 2 4 3 3 5 1 2 3 10 1 2 3 4 5 4 5 6 7 6 7 8 8 10 1 2 3 10 1 2 3 4 5 4 5 6 7 6 7 8 8 10 lamp 10p (wht) room/coil 4p (wht) flap 5p (wht) 1 2 3 4 1 2 3 4 red wht 9 9 9 9 flap motor connector evaporator red pnk blu brn yel 1 5 6 1 5 4 4 6 dcm 6p (blu) red wht yel 3 3 2 ...

  • Page 32: 7.  Functions

    Emergency operation sensor dry auto initial operation mode selection selecting the operation mode during dry operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment. Sensor dry operation dry operati...

  • Page 33

    High power night setback lamp colors timer backup this function acts to raise the power but keeps the ac system in the same operating mode. This function is set with the high power button on the remote controller. (it can be set regardless of the temperature and fan speed settings.) high power opera...

  • Page 34

    Overload prevention during heating during heat operation, the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated. Freeze prevention during cool or dry operation, freezing is detected and operation ...

  • Page 35

    1hr. Timer button on/off operation button acl (reset) button quiet button test run mode self-diagnostics mode 8. Troubleshooting (before calling for service) 8-1. Precautions before performing inspection or repair note procedure after checking the self-diagnostics monitor, turn the power off before ...

  • Page 36

    Since the indications cover various units, the corresponding parts listed below may not be present in some models. Remote control receiver (1) operation lamp (2) timer lamp (3) quiet lamp operation button indoor unit (1) self-diagnostics lamps indication on indoor unit .... Off code diagnosis conten...

  • Page 37

    (2) if the self-diagnostics function fails to operate check the indoor unit. Is the fuse blown? Replace the controller. Replace the circuit board or the fuse. No indicators illuminate and the indoor fan does not rotate. Check the power voltage. Normal blown 37.

  • Page 38

    8-3. Checking the indoor and outdoor units (1) checking the indoor unit (2) checking the outdoor unit using the test/t-run terminals control no. Check items (unit operation) t-run : test run (compressor and fan motor turn on). Test/mv : compresses time to 1/60th (accelerates operation by 60 times fa...

  • Page 39

    (3) how to identify a serial communication error if the lamps on the main body show the following conditions after the completion of self-diagnosis, a communication error between the indoor unit and outdoor unit might be considered. In such a case, identify the breakdown section by using the followi...

  • Page 40

    (3-2) condition: e12 condition: e12 1. Disconnect the inter-unit wiring on the indoor unit side. 2. Operate the system in test run mode. Then, five minutes later, perform the self-diagnosis. 1. Disconnect the inter-unit wiring on the outdoor unit side. 2. Operate the system in test run mode. Then, f...

  • Page 41

    [trouble symptom 3] motor rotates for some time (several seconds), but then quickly stops, when the indoor unit operates. (there is trouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller.) [trouble symptom 4] fan motor rotation speed does no...

  • Page 42

    8-5. Noise malfunction and electromagnetic interference an inverter a/c operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is install...

  • Page 44: Operating Instructions

    Operating instructions cs-mke7nku cs-mke9nku cs-mke12nku appendix a (852-6-4181-217-00-2) a-1.

  • Page 45: Split System Air Conditioner

    Panasonic corporation 1006 kadoma, kadoma city, osaka, japan 85264181217002 cv6233187617 this air conditioner uses the refrigerant r410a. Split system air conditioner model no. Indoor units cs-mke7nku cs-mke9nku cs-mke12nku outdoor units cu-3ke19nbu cu-4ke24nbu cu-4ke31nbu operating instructions bef...

  • Page 46: Features

    2 features this air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • microprocessor controlled operation the interior compartment of the remote contr...

  • Page 47: Installation Location

    3 installation location • we recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the installation instructions provided with the unit. • before installation, check that the voltage of the electric supply in your home or office is the sam...

  • Page 48

    4 • to prevent possible hazards from insulation failure, the unit must be grounded. • do not clean inside the indoor and outdoor units by users. Engage authorized dealer or specialist for cleaning. • in case of malfunction of this appliance, do not repair by yourself. Contact to the sales dealer or ...

  • Page 49: Names of Parts

    5 names of parts this illustration is based on the external view of a standard model. Consequently, the shape may differ from that of the air conditioner which you have selected. This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote ...

  • Page 50

    6 unit display and operation button remote control receiver this section picks up infrared signals from the remote controller (transmitter). Operation button when the remote controller cannot be used, pressing this button enables heating and cooling operation. Each time this button is pressed, the t...

  • Page 51: Remote Controller (Display)

    7 remote controller (display) (1) operation mode auto ......................................... Heat .......................................... Mild dry .................................. Cool ......................................... (2) fan speed automatic operation ................... High .........

  • Page 52: Remote Controller

    8 remote controller the illustration above pictures the remote controller after the cover has been opened. Transmitter when you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner. Sensor a temperature sen...

  • Page 53

    9 remote controller (continued) mode selector button use this button to select auto, heat, dry or cool mode. (auto) : the air conditioner calculates the difference between the thermostat setting and room temperature, and automatically selects ‘‘cool’’ or ‘‘heat’’ mode as appropriate. (heat) : the ai...

  • Page 54: Using The Remote Controller

    10 remote controller (continued) using the remote controller temperature display selector button this switches the temperature display between °c and °f. Time display selector button this switches the time display between 24-hour time and 12-hour time. Acl button (all clear) puts the remote controll...

  • Page 55

    11 using the remote controller (continued) how to use the remote controller when using the remote controller, always point the unit’s transmitter head directly at the air conditioner’s receiver. Remote controller installation position the remote controller may be operated either from a non-fixed pos...

  • Page 56

    12 operation with the remote controller 1. Automatic operation the air conditioner calculates the difference between the thermostat setting and room temperature, and automatically determines the mode to operate under cooling or heating. Then, the air conditioner continuously operates under the mode ...

  • Page 57

    13 operation with the remote controller (continued) 2. Manual operation check that the circuit breaker on the power panel is turned on. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired. Step 1 pres...

  • Page 58

    14 operation with the remote controller (continued) • choose the best position in the room for the remote controller, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote controller there. • this applian...

  • Page 59

    15 operation with the remote controller (continued) 4. Night setback mode night setback mode is used for saving energy. Press the night setback button while unit is operating. The mark appears in the display. To release the night setback function, press the night setback button again. Pressing the m...

  • Page 60

    16 operation with the remote controller (continued) 5. Quiet mode quiet mode is used to reduce the fan sound of the indoor unit. Press the quiet button. The mark appears in the display. To cancel, press quiet button again. • in quiet mode, the fan rotates at a slower speed than the fan speed setting...

  • Page 61: Special Remarks

    17 special remarks how it works? • once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically. • during dry operation, the fan speed automatically runs at lower speed for providing a comfortable breeze. • ‘‘dry’’ operation is not possible if the...

  • Page 62: Setting The Timer

    18 setting the timer in the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote controller. • temperature: °f • time: am, pm 1. How to set the present time (example) to set to 10:30 pm. 2. How to set the...

  • Page 63

    19 setting the timer (continued) 3. How to set the on time (example) to start operation at 7:10 am. 4. How to set daily on/off repeat timer (example) to start operation at 7:10 am. And stop the air conditioner at 11:00 am. To cancel a timer program • press the cancel button. • when either an on or o...

  • Page 64: Using The 1-Hour Off Timer

    20 using the 1-hour off timer tips for energy saving 1. 1-hour off timer this function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. The indicator in the display indicates that this function is operating. Setting proce...

  • Page 65

    21 adjusting the airflow direction 1. Horizontal the horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vane...

  • Page 66: Care and Cleaning

    22 operation without the remote controller care and cleaning indoor unit if you have lost the remote controller or it has trouble, follow the steps below. When the air conditioner is not running each time the operation button is pressed, the type of operation conducted is indicated by the changing c...

  • Page 67

    23 care and cleaning (continued) filter the filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the filter 1. Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. 2. Remove the filter ...

  • Page 68: Wired Remote Controller

    24 care and cleaning (continued) wired remote controller cleaning the main unit and remote controller • wipe clean using a soft, dry cloth. • to remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °f, wring thoroughly, and then wipe. • the air intake grille can be removed in order...

  • Page 69: Operating Range

    25 troubleshooting (before calling for service) if your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Operating range the air conditioner is operable within the temperatur...

  • Page 70: Specifications

    26 specifications model no. Indoor unit cs-mke9nku cs-mke7nku single-phase, 208-230 v, 60 hz heating capacity operation sound unit dimensions (h×w×d) (indoor unit : include panel) net weight power source cooling capacity kw btu/h kw btu/h inch(mm) lbs.(kg) cooling operation (h/m/l) heating operation...

  • Page 72: Operating Instructions

    Operating instructions cs-mke18nku cs-mke24nku (852-6-4181-218-00-2) appendix b a-2.

  • Page 73: Operating Instructions

    This air conditioner uses the refrigerant r410a. Split system air conditioner model no. 1006 kadoma, kadoma city, osaka, japan 85264181218002 indoor units cs-mke18nku cs-mke24nku outdoor units cu-3ke19nbu cu-4ke24nbu cu-4ke31nbu operating instructions before operating the unit, read these operating ...

  • Page 74: Features

    2 features this air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • microprocessor controlled operation the interior compartment of the remote contr...

  • Page 75: Installation Location

    3 installation location • we recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the installation instructions provided with the unit. • before installation, check that the voltage of the electric supply in your home or office is the sam...

  • Page 76

    4 • to prevent possible hazards from insulation failure, the unit must be grounded. • do not clean inside the indoor and outdoor units by users. Engage authorized dealer or specialist for cleaning. • in case of malfunction of this appliance, do not repair by yourself. Contact to the sales dealer or ...

  • Page 77: Names of Parts

    5 names of parts this illustration is based on the external view of a standard model. Consequently, the shape may differ from that of the air conditioner which you have selected. This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote ...

  • Page 78

    6 unit display and operation button remote control receiver this section picks up infrared signals from the remote controller (transmitter). Operation button when the remote controller cannot be used, pressing this button enables heating and cooling operation. Each time this button is pressed, the t...

  • Page 79: Remote Controller (Display)

    7 remote controller (display) (1) operation mode auto ......................................... Heat .......................................... Mild dry .................................. Cool ......................................... (2) fan speed automatic operation ................... High .........

  • Page 80: Remote Controller

    8 remote controller the illustration above pictures the remote controller after the cover has been opened. Transmitter when you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner. Sensor a temperature sen...

  • Page 81

    9 remote controller (continued) mode selector button use this button to select auto, heat, dry or cool mode. (auto) : the air conditioner calculates the difference between the thermostat setting and room temperature, and automatically selects ‘‘cool’’ or ‘‘heat’’ mode as appropriate. (heat) : the ai...

  • Page 82: Using The Remote Controller

    10 remote controller (continued) using the remote controller temperature display selector button this switches the temperature display between °c and °f. Time display selector button this switches the time display between 24-hour time and 12-hour time. Acl button (all clear) puts the remote controll...

  • Page 83

    11 using the remote controller (continued) how to use the remote controller when using the remote controller, always point the unit’s transmitter head directly at the air conditioner’s receiver. Remote controller installation position the remote controller may be operated either from a non-fixed pos...

  • Page 84

    12 operation with the remote controller 1. Automatic operation the air conditioner calculates the difference between the thermostat setting and room temperature, and automatically determines the mode to operate under cooling or heating. Then, the air conditioner continuously operates under the mode ...

  • Page 85

    13 operation with the remote controller (continued) 2. Manual operation check that the circuit breaker on the power panel is turned on. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired. Step 1 pres...

  • Page 86

    14 operation with the remote controller (continued) • choose the best position in the room for the remote controller, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote controller there. • this applian...

  • Page 87

    15 operation with the remote controller (continued) 4. Night setback mode night setback mode is used for saving energy. Press the night setback button while unit is operating. The mark appears in the display. To release the night setback function, press the night setback button again. Pressing the m...

  • Page 88

    16 operation with the remote controller (continued) 5. Quiet mode quiet mode is used to reduce the fan sound of the indoor unit. Press the quiet button. The mark appears in the display. To cancel, press quiet button again. • in quiet mode, the fan rotates at a slower speed than the fan speed setting...

  • Page 89: Special Remarks

    17 special remarks how it works? • once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically. • during dry operation, the fan speed automatically runs at lower speed for providing a comfortable breeze. • ‘‘dry’’ operation is not possible if the...

  • Page 90: Setting The Timer

    18 setting the timer in the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote controller. • temperature: °f • time: am, pm 1. How to set the present time (example) to set to 10:30 pm. 2. How to set the...

  • Page 91

    19 setting the timer (continued) 3. How to set the on time (example) to start operation at 7:10 am. 4. How to set daily on/off repeat timer (example) to start operation at 7:10 am. And stop the air conditioner at 11:00 am. To cancel a timer program • press the cancel button. • when either an on or o...

  • Page 92: Using The 1-Hour Off Timer

    20 using the 1-hour off timer tips for energy saving 1. 1-hour off timer this function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. The indicator in the display indicates that this function is operating. Setting proce...

  • Page 93

    21 adjusting the airflow direction 1. Horizontal the horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vane...

  • Page 94: Operation Without The Remote

    22 operation without the remote controller care and cleaning indoor unit if you have lost the remote controller or it has trouble, follow the steps below. When the air conditioner is not running each time the operation button is pressed, the type of operation conducted is indicated by the changing c...

  • Page 95

    23 care and cleaning (continued) filter the filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the filter 1. Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. 2. Remove the filter ...

  • Page 96: Wired Remote Controller

    24 care and cleaning (continued) wired remote controller cleaning the main unit and remote controller • wipe clean using a soft, dry cloth. • to remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °f, wring thoroughly, and then wipe. • the air intake grille can be removed in order...

  • Page 97: Service)

    25 troubleshooting (before calling for service) if your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Operating range the air conditioner is operable within the temperatur...

  • Page 98: Specifications

    26 specifications model no. Indoor unit cs-mke18nku cs-mke24nku power source single-phase, 208-230 v, 60 hz cooling capacity kw 5.15 7.10 btu/h 17,500 24,200 heating capacity kw 6.00 8.50 btu/h 20,400 29,000 operation sound cooling operation (h/m/l) db(a) 41/38/34 44/41/38 heating operation (h/m/l) ...

  • Page 100: Installation Instructions

    Installation instructions cs-mke7nku cs-mke9nku cs-mke12nku cs-mke18nku cs-mke24nku appendix c (852-6-4190-583-00-0) a-3.

  • Page 101: Split System Air Conditioner

    For indoor unit this air conditioner uses the refrigerant r410a. External diameter of service port r410a: 5/16" split system air conditioner 85264190583000 2011 installation instructions note cv6233187860 contents page important! Please read before starting .................................. 2 1. Ge...

  • Page 102

    2 important! Please read before starting this air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free op...

  • Page 103

    3 ‡ $sso\uhiuljhudqwoxeulfdqwwrwkhpdwfklqjvxuidfhvri the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection. ‡ &khfnfduhixoo\iruohdnvehiruhvwduwlqjwkhwhvwuxq ‡ 'rqrwohdnuhiuljhudqwzklohslslqjzrunirudqlqvwdoodwlrq or re-installation, and...

  • Page 104

    4 1. General this booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning. 1-1. Tools required for installation (not s...

  • Page 105

    5 1-5. Additional materials required for installation 1. Refrigeration (armored) tape 2. Insulated staples or clamps for connecting wire (see local codes.) 3. Putty 4. Refrigeration lubricant 5. Clamps or saddles to secure refrigerant tubing 2. Installation site selection 2-1. Indoor unit avoid: dir...

  • Page 106

    6 install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. Install in a sturdy manner to avoid increased operating nois...

  • Page 107

    7 set screw only for transportation fig. 6 rear panel marks fig. 7 left tubing right tubing right-rear tubing (recommended) right-downward tubing left-rear tubing left-downward tubing (not applicable for cs-mke18nku, cs-mke24nku) fig. 8 3. How to install the indoor unit 3-1. Remove the rear panel fr...

  • Page 108

    8 indoor side outdoor side hole should be made at a slight downward slant to the outdoor side. Note fig. 10 plastic cover inside outside wall slight angle pvc pipe /rfdoo\sxufkdvhg fig. 12 39&slsh/rfdoo\sxufkdvhg cut at slight angle fig. 11 (4) using a sabre saw, key hole saw or hole-cutting drill a...

  • Page 109

    9 3-4. Removing and installing the grille 3-4-1. Indoor unit types (cs-mke7nku, cs-mke9nku, cs-mke12nku) basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille (1) grasp both ...

  • Page 110

    10 3-4-2. Indoor unit types (cs-mke18nku, cs-mke24nku) basically, these models can be installed and wired with- out removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille (1) grasp both ends of the air intake grille, and remove it by ...

  • Page 111

    11 3-5. Shape the indoor side tubing (1) arrangement of tubing by directions a) right or left tubing cut out the corner of the right/left frame with a hacksaw or the like. (figs. 20 and 21) b) right-rear or left-rear tubing in this case, the corner of the frame need not be cut. (2) to mount the indo...

  • Page 112

    12 3-7. Wiring instructions for inter-unit connections (1) insert the inter-unit wiring (according to local codes) into the through-the-wall pvc pipe. Run the wiring toward the indoor side allowing approx. 10" (25 cm) to extend from the wall face. (fig. 24) (2) grasp both ends of the air intake gril...

  • Page 113

    13 when connecting each power wire to the corresponding terminal, follow the instructions “how to connect wiring to the terminal” and fasten the wire securely tight with the fixing screw of the terminal plate. How to connect wiring to the terminal a) for indoor unit (1) cut the wire end with a cutti...

  • Page 114

    14 3-8. Mounting (1) to install the indoor unit, mount the indoor unit onto the 2 tabs on the upper part of the rear plate. (2) hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate. (fig. 3...

  • Page 115

    15 hole in wall bent part narrow tube wide tube rear panel fig. 38 drain cap drain hose fig. 39 left-side tubing /hdgwkhwxelqjdqggudlqkrvhwkurxjkwkhzdoo allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attach- ment. (fig. 38) (2) switch the drain hose a...

  • Page 116

    Slant drain hose indoor unit condensation insulation material /rfdoo\sxufkdvhg must be used. 16 to unmount indoor unit press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (fig. 42) 3-9. Drain hose a) the drain hose should be slanted dow...

  • Page 117

    17 4. How to test run the air conditioner after turning on the power of the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) set the remote controller in test run mode. (fig. 59a) a)press and hold the quiet button and the 1hr. Timer button. E7khqsuhv...

  • Page 118

    18 5. Remote controller installation position the remote controller can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote controller in the following places: in direct sunlight behind a curtain or...

  • Page 119

    19 6. Address switch 6-1. Address setting of the remote controller the address can be set in order to prevent interference between remote controllers when 2 indoor units are installed near each other. The address is normally set to “a.” to set a different address, it is necessary to change the addre...

  • Page 120

    20 7. Connecting a home automation device the ha (white) 4p terminal is located on the indoor unit pcb. If a ha device will be used, connect it to this terminal. 8. Installation check sheet the strength of the installation location is sufficient to support the air conditioner weight. The indoor and ...

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