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Panasonic Cs Ksxxnb4x Cz 18bt1u Technical Service Manual

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    							Indoor Unit  : CS-KS18NB4UW & CZ-18BT1U
    Outdoor Unit  : CU-KS18NKU or CU-KS18NKUA
    Power Supply  :  230V Single Phase 60Hz
    < Cooling Capacity >
    1.
    Rating conditions (#) 
    :  Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
    :  Outdoor Ambient Temp. 95 °F (35 °C) DB
    2.
    3. Above data represents the value when the operation frequency of a compressor is fixed.Above data does not take Freeze Prevention Protection during cooling operation into account. 
    For this reason, the value may vary from the actual cooling characteristics.
    NOTE
    TC : Total Cooling Capacity (BTU/h)   SHC : Sensible Heat Capacity (BTU/h)
    RATING CAPACITY:    17,500 BTU/h       AIR FLOW RATE: 341 CFM
    INDOOR OUTDOOR
    ENT. TEMP. 
    oF (oC) AMBIENT TEMP. oF (oC)
    WB   DB   65 75 85 95 105 115
    (18.3) (23.9) (29.4) (35.0) (40.6) (46.1)
    TC 12,260 12,550 12,830 13,060 13,460 9,520
    CI
    1.151.341.541.721.671.30
    72 (22.2) SHC 9,140 9,270 9,400 9,540 9,740 7,810
    59 76 (24.4) SHC 10,330 10,470 10,600 10,730 10,930 9,010
    (15.0) 80 (26.7) SHC 11,590 11,720 11,860 11,990 12,190 9,520
    84 (28.9) SHC 12,260 12,550 12,830 13,060 13,380 9,520
    88 (31.1) SHC 12,260 12,550 12,830 13,060 13,460 9,520
    TC 18,110 17,790 17,400 17,000 14,080 9,650
    CI
    1.171.371.571.751.671.30
    72 (22.2) SHC 10,400 10,200 10,000 9,800 8,340 6,290
    63 76 (24.4) SHC 11,590 11,390 11,190 11,000 9,540 7,480
    (17.2) 80 (26.7) SHC 12,850 12,650 12,450 12,260 10,800 8,740
    84 (28.9) SHC 14,040 13,850 13,650 13,450 11,990 9,650
    88 (31.1) SHC 15,240 15,110 14,840 14,640 13,180 9,650
    TC 18,510 18,220 17,860 # 17,500 14,220 9,750
    CI
    1.191.401.601.791.671.30
    72 (22.2) SHC 8,680 8,480 8,340 8,140 6,620 4,830
    67 76 (24.4) SHC 9,870 9,740 9,540 9,340 7,880 6,020
    (19.4) 80 (26.7) SHC 11,130 10,930 10,800 10,600 9,070 7,280
    84 (28.9) SHC 12,320 12,190 11,990 11,790 10,330 8,480
    88 (31.1) SHC 13,510 13,380 13,180 12,980 11,530 9,670
    TC 18,820 18,570 18,260 17,940 14,290 9,810
    CI
    1.221.431.641.831.671.30
    72 (22.2) SHC 6,750 6,690 6,550 6,420 4,900 3,240
    71 76 (24.4) SHC 7,950 7,880 7,750 7,610 6,090 4,430
    (21.7) 80 (26.7) SHC 9,210 9,140 9,010 8,870 7,350 5,690
    84 (28.9) SHC 10,470 10,330 10,200 10,070 8,540 6,890
    88 (31.1) SHC 11,660 11,530 11,390 11,260 9,740 8,080
    TC 19,010 18,800 18,530 18,260 14,280 9,810
    CI
    1.251.461.681.871.671.30
    75 76 (24.4) SHC 6,160 6,090 5,960 5,890 4,430 2,970
    (23.9) 80 (26.7) SHC 7,420 7,350 7,220 7,150 5,690 4,230
    84 (28.9) SHC 8,610 8,540 8,410 8,340 6,890 5,430
    88 (31.1) SHC 9,800 9,740 9,670 9,540 8,080 6,620
    31 
    						
    							5-3.  Cooling Capacity (Low Ambient)
    Indoor Unit  : CS-KS12NB41 & CZ-18BT1U
    Outdoor Unit  : CU-KS12NK1A
    Power Supply  :  115V Single Phase 60Hz
    < Cooling Capacity (Low Ambient) >
    TC : Total Cooling Capacity (BTU/h)   SHC : Sensible Heat Capacity (BTU/h)
    1.
    2. Above data represents the value when the operation frequency of a compressor is fixed.Above data does not take Freeze Prevention Protection during cooling operation into account. 
    For this reason, the value may vary from the actual cooling characteristics.
    NOTE
     RATING CAPACITY:    11,900 BTU/h       AIR FLOW RATE: 235 CFM
    INDOOR OUTDOOR
     ENT. TEMP. 
    oF (oC)     AMBIENT TEMP. oF (oC)
     WB  DB   0 5 15 25 35 45 55
    (-17.8) (-15.0) (-9.4) (-3.9) (1.7) (7.2) (12.8)
    TC 9,530 9,550 9,560 9,590 9,600 9,590 9,570
    CI
    0.470.500.470.46 0.460.510.55
    72 (22.2) SHC 6,930 6,930 6,980 8,580 6,980 6,980 6,980
    59 76 (24.4) SHC 7,800 7,800 7,850 9,450 7,850 7,850 7,850
    (15.0) 80 (26.7) SHC 8,720 8,720 8,720 9,590 8,760 8,760 8,760
    84 (28.9) SHC 9,530 9,550 9,560 9,590 9,600 9,590 9,570
    88 (31.1) SHC 9,530 9,550 9,560 9,590 9,600 9,590 9,570
    TC 9,440 9,460 9,530 9,590 9,650 9,660 9,670
    CI
    0.530.560.510.490.490.530.57
    72 (22.2) SHC 5,650 5,650 5,700 8,580 5,740 5,740 5,790
    63 76 (24.4) SHC 6,520 6,520 6,570 9,450 6,610 6,610 6,660
    (17.2) 80 (26.7) SHC 7,440 7,440 7,480 9,590 7,530 7,530 7,530
    84 (28.9) SHC 8,300 8,300 8,350 9,590 8,400 8,400 8,400
    88 (31.1) SHC 9,170 9,170 9,220 9,590 9,270 9,270 9,270
    TC 9,250 9,290 9,410 9,530 9,620 9,670 9,720
    CI
    0.610.630.570.540.520.560.59
    72 (22.2) SHC 4,370 4,370 4,420 8,580 4,510 4,560 4,560
    67 76 (24.4) SHC 5,240 5,240 5,290 9,450 5,380 5,420 5,420
    (19.4) 80 (26.7) SHC 6,160 6,160 6,200 9,530 6,290 6,340 6,340
    84 (28.9) SHC 7,020 7,020 7,070 9,530 7,160 7,210 7,210
    88 (31.1) SHC 7,890 7,890 7,940 9,530 8,030 8,080 8,080
    TC 8,950 9,010 9,210 9,380 9,520 9,610 9,710
    CI
    0.680.710.630.580.560.600.62
    72 (22.2) SHC 3,000 3,050 3,090 8,580 3,230 3,280 3,280
    71 76 (24.4) SHC 3,870 3,920 3,960 9,380 4,100 4,140 4,140
    (21.7) 80 (26.7) SHC 4,780 4,830 4,880 9,380 5,010 5,060 5,060
    84 (28.9) SHC 5,650 5,700 5,740 9,380 5,880 5,930 5,930
    88 (31.1) SHC 6,520 6,570 6,610 9,380 6,750 6,800 6,800
    TC 8,590 8,650 8,930 9,160 9,360 9,480 9,620
    CI
    0.760.790.690.630.600.630.64
    75 76 (24.4) SHC 2,590 2,640 2,730 9,160 2,860 2,910 2,960
    (23.9) 80 (26.7) SHC 3,500 3,550 3,640 9,160 3,780 3,820 3,870
    84 (28.9) SHC 4,370 4,420 4,510 9,160 4,650 4,690 4,740
    88 (31.1) SHC 5,240 5,290 5,380 9,160 5,520 5,560 5,610
    32 
    						
    							Indoor Unit  : CS-KS18NB4UW & CZ-18BT1U
    Outdoor Unit  : CU-KS18NKUA
    Power Supply  :  230V Single Phase 60Hz
    < Cooling Capacity (Low Ambient) >
     RATING CAPACITY:    17,500 BTU/h       AIR FLOW RATE: 341 CFM
    INDOOR OUTDOOR
     ENT. TEMP. 
    oF (oC)     AMBIENT TEMP. oF (oC)
    WB   DB    0 5 15 25 35 45 55
    (-17.8) (-15.0) (-9.4) (-3.9) (1.7) (7.2) (12.8)
    TC 13,400 13,430 13,440 13,470 13,500 13,520 13,510
    CI
    0.690.730.760.66 0.660.660.70
    72 (22.2) SHC 9,740 9,740 9,740 11,860 9,740 9,800 9,800
    59 76 (24.4) SHC 10,930 10,930 10,930 13,050 11,000 11,000 11,000
    (15.0) 80 (26.7) SHC 12,190 12,190 12,190 13,470 12,190 12,260 12,190
    84 (28.9) SHC 13,380 13,380 13,380 13,470 13,380 13,450 13,450
    88 (31.1) SHC 13,400 13,430 13,440 13,470 13,500 13,520 13,510
    TC 13,260 13,300 13,370 13,480 13,560 13,640 13,670
    CI
    0.780.820.840.710.700.690.72
    72 (22.2) SHC 7,950 7,950 7,950 11,860 8,080 8,080 8,140
    63 76 (24.4) SHC 9,140 9,140 9,210 13,050 9,270 9,270 9,340
    (17.2) 80 (26.7) SHC 10,400 10,400 10,400 13,480 10,530 10,530 10,600
    84 (28.9) SHC 11,590 11,590 11,590 13,480 11,720 11,720 11,790
    88 (31.1) SHC 12,790 12,790 12,850 13,480 12,920 12,980 12,980
    TC 12,980 13,040 13,170 13,380 13,530 13,670 13,760
    CI
    0.890.920.930.780.750.720.75
    72 (22.2) SHC 6,090 6,160 6,220 11,860 6,360 6,420 6,420
    67 76 (24.4) SHC 7,280 7,350 7,420 13,050 7,550 7,610 7,680
    (19.4) 80 (26.7) SHC 8,540 8,610 8,680 13,380 8,810 8,870 8,870
    84 (28.9) SHC 9,740 9,800 9,870 13,380 10,000 10,070 10,070
    88 (31.1) SHC 11,000 11,000 11,060 13,380 11,190 11,260 11,330
    TC 12,550 12,630 12,830 13,160 13,390 13,600 13,750
    CI
    1.001.031.030.850.800.760.77
    72 (22.2) SHC 4,230 4,230 4,370 11,860 4,570 4,630 4,700
    71 76 (24.4) SHC 5,430 5,490 5,560 13,050 5,760 5,820 5,890
    (21.7) 80 (26.7) SHC 6,690 6,690 6,820 13,160 7,020 7,080 7,150
    84 (28.9) SHC 7,880 7,950 8,010 13,160 8,210 8,280 8,340
    88 (31.1) SHC 9,070 9,140 9,210 13,160 9,400 9,470 9,540
    TC 12,010 12,110 12,380 12,850 13,150 13,440 13,650
    CI
    1.111.141.130.920.860.800.80
    75 76 (24.4) SHC 3,640 3,700 3,770 12,850 4,030 4,170 4,230
    (23.9) 80 (26.7) SHC 4,900 4,960 5,030 12,850 5,290 5,360 5,490
    84 (28.9) SHC 6,090 6,160 6,220 12,850 6,490 6,620 6,690
    88 (31.1) SHC 7,280 7,350 7,420 12,850 7,680 7,810 7,880
    TC : Total Cooling Capacity (BTU/h)   SHC : Sensible Heat Capacity (BTU/h)
    1.
    2. Above data represents the value when the operation frequency of a compressor is fixed.Above data does not take Freeze Prevention Protection during cooling operation into account. 
    For this reason, the value may vary from the actual cooling characteristics.
    NOTE
    33 
    						
    							6.  ELECTRICAL DATA
    6-1.  Electrical Characteristics
    Indoor Unit CS-KS12NB41 & CZ-18BT1U
    Outdoor Unit
     CU-KS12NK1A
    Indoor Unit Outdoor Unit Complete Unit
    Fan Motor Fan Motor + Compressor
    Performance at 115V Single-phase 60Hz
    Rating conditions Running amp. 0.21
    Power input 1812.39
    1,242
    Cooling
    12.6
    1,260
    Rating conditions:  Indoor air temperature:  80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
      Outdoor air temperature:  95 °F (35 °C) DBA
    W
    34 
    						
    							 
     
    Indoor Unit CS-KS18NB4UW & CZ-18BT1U
    Outdoor Unit
     CU-KS18NKU
    Indoor Unit Outdoor Unit
    Fan Motor Fan Motor + Compressor
    Performance at 230V Single-phase 60Hz
    Rating conditions Running amp. A 0.15
    Power input W
    A
    W
    A
    W
    A
    W228.15
    1,838
    Rating conditions:  Indoor air temperature:  80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
      Outdoor air temperature:  95 °F (35 °C) DB
    Cooling
    8.3
    1,860
    Indoor Unit Outdoor Unit
    Fan Motor Fan Motor + Compressor
    Performance at 208V Single-phase 60Hz
    Rating conditions Running amp. 0.16
    Power input 228.94
    1,838
    Rating conditions:  Indoor air temperature:  80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
      Outdoor air temperature:  95 °F (35 °C) DB
    Rating conditions:  Indoor air temperature:  80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
      Outdoor air temperature:  95 °F (35 °C) DB
    Rating conditions:  Indoor air temperature:  80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
      Outdoor air temperature:  95 °F (35 °C) DB
    Cooling
    9.1
    1,860
    Indoor UnitCS-KS18NB4UW & CZ-18BT1U
    Outdoor UnitCU-KS18NKUA
    Indoor Unit Outdoor Unit
    Fan Motor Fan Motor + Compressor
    Performance at 230V Single-phase 60Hz
    Rating conditions Running amp. 0.15
    Power input 228.15
    1,838
    Cooling
    8.3
    1,860
    Indoor Unit Outdoor Unit
    Fan Motor Fan Motor + Compressor
    Performance at 208V Single-phase 60Hz
    Rating conditions Running amp. 0.16
    Power input 228.94
    1,838
    Cooling
    9.1
    1,860 Complete Unit
    < 230V >
    < 
    208V >
    < 
    230V >
    < 
    208V >
    Complete Unit
    Complete Unit
    Complete Unit
    35 
    						
    							6-2.  Electric Wiring Diagrams
    Indoor Unit CS-KS12NB41 & CZ-18BT1U
      CS-KS18NB4UW & CZ-18BT1U
    8FA2-5250-46900-2
    123456
    123456
    FMDP
    FAN MOTORDRAIN PUMP
    DCM
    6P (BLU)
    6P (WHT)DP
    3P (BLU)
    3P (RED)PWM/POW 7P (RED) PWM/POW 7P (RED) RC
    4P (WHT)IND
    7P (WHT)FS
    3P (RED) FLAP
    5P (WHT)ROOM
    2P (YEL)COIL-1
    2P (RED) IND LAMP ASSYFLAP (W)
    FLOAT SWITCH
    BOX BOX SERIAL
    2P (WHT)SERIAL
    2P (WHT) TERMINAL BASE
    CONTROLLER CONTROLLER
    TO OUTDOOR UNIT
    GNDFERRITE
    COREAC1 AC2 SI1
    RED
    YELBLU
    11YEL/(RED)33
    112
    1122
    1122
    23344556677
    11223344556677
    1122334455
    1122334455
    6677
    11223344
    1122
    1133
    334455
    1122
    1122
    1122
    334455
    112233445566
    6677
    88991010
    YEL/(RED)
    BRNREDORGYELPNKBLUVLT
    2
    3RED
    BLK
    BLK
    WHT
    WHT
    GRN/YEL
    REDWHTGRN
    WHTBLKGRNBRNREDORGYELPNKBLUVLT
    BLKBLK
    FLAP (R)
    THERMISTOR
    ROOM
    COIL-1
    1122334455
    BLKORGBLUBRNWHT
    BLK
    BLK
    ORG
    ORG
    BLU
    BLU
    BRN
    BRN
    WHT
    WHT
    BLKBLK
    BLKBLK
    36 
    						
    							Outdoor Unit CU-KS12NK1A
    8FA2-5251-12300-2
    37 
    						
    							Outdoor Unit CU-KS18NKU   CU-KS18NKUA
    8FA2-5251-12000-2
    25A
    CONTROLLER
    DCFM MV0
    FAN MOTOR 1
    234567
    BLKWHTREDBLUYEL
    BLKWHTREDBLUYEL
    w
    w
    w
    w
    w
    w
    ww
    12345512431212
    12345671245673
    12
    1234
    3455
    12
    1233
    12
    12
    1234124312341243
    21
    2 1
    FERRITE
    CORE
    COMPRESSOR
    THERMISTOR
    OUT DOOR
    THERMISTOR
    COIL
    THERMISTOR
    MV0
    MAGNETIC COIL w
    w
    *ELEC SYSTEM ASSY
    1
    2
    3
    4
    5
    6
    REACTANCE
    WHT2P-CONNECTOR
       (WHT)
    WHTWHT
    WHT
    REDRED(PINK)
    RED(PINK)
    WHT
    WHT
    WHT
    WHTWHT
    WHT
    BLU
    BLU
    U
    V
    W
    BLKBLKBLKBLKYELYELORGYELGRYBLKRED
    COMP A-THCOIL/OUTDOOR
    7P-CONNECTOR (WHT)
    2P-CONNECTOR (RED)2P-CONNECTOR (BLK)
    WHTWHT
    BLK
    BLK
    BLKBLK
    BLK1
    4
    5 6
    POWER RELAY
    GND
    GND
    TO INDOOR UNITPOWER
    SUPPLY
    S
    RT
    CM
    NL
    HIGH PRESSURE
    SWITCH
    FERRITE CORE
    TERMINAL
    PLATE
    FML1 L2 E1
    w
    E2 E
    ACIN1
    ACIN2
    SI-A
    21
    2 1
    COMPRESSOR
    MOTOROVERLOAD RELAY
    (OLR)
    3P-CONNECTOR (WHT)
    BLK
    WHT
    GRNGRNGRN
    38 
    						
    							ACL
    (Reset)
    button 1HR.
    TIMER
    button ON/OFF
    operation
    button
    HIGH POWER
    button
    Test run mode
    Self-diagnostic mode
    Address setting mode
    Fig. 1
    Fig. 2
    Fig. 3
    Ta b
    ACL button
    7.  MAINTENANCE
    7-1.  Address Setting of the Remote 
    Controller
    The address can be set in order to prevent 
    interference between remote controllers when two 
    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 address on the 
    second remote controller.
    Once changed, you cannot restore the original 
    address setting of the air conditioner.
    (1) Switch  on the power source.
    (2) Break the address-setting tab marked "A" on the 
    second remote controller to change the address 
    (Fig. 1). When the tab is removed, the address is 
    automatically set to B (Fig. 2).
    (3) Press and hold the remote controller HIGH 
    POWER button and 1 HR TIMER button. Then, 
    press and hold the ACL (reset) button with a 
    pointed object such as the tip of a pen. After 5 
    seconds, release ACL button first, then release 
    HIGH POWER and 1 HR. TIMER buttons, "oP-1" 
    (test run) appears, blinking in the remote 
    controller clock display area.
    (4) Each time the 1 HR TIMER button is pressed, the 
    display changes as shown below. Press this 
    button 2 times to change the display to "oP-7" 
    (address setting). (Fig. 3) 
    (5) "oP-7" has now been selected for address setting.
    (6) Press the ON/OFF operation button on the remote 
    controller. (Fig. 3) Check that the "beep" signal 
    received sound is heard from the second indoor 
    unit (approximately 5 times). The sound you hear 
    is the signal that the remote controller address 
    has been changed.
    (7) Finally press the remote controller ACL (reset) 
    button to cancel the blinking "oP-7" display. (Fig. 
    3)
    Changing of the second remote controller address is 
    now completed.
    NOTE
    39 
    						
    							One of the two types of connectors illustrated at left is used. Their
    basic structure is the same for each. 
    How to Disconnect
    Hold the resin connector cover, and pull the connector off.
    You cannot disconnect the connector by pulling the wire since
    it is locked inside. Always hold the cover to disconnect. (See
    illustration at left.) For the connector without the resin cover,
    push the lock in the direction of "2" while pulling it off. 
    How to Connect
    In order to connect, hold the resin cover of the connector and
    push it in. Confirm the click sound for the inside lock. 
    Pull the cover upward
    When the cover is pulled upward, the lock is 
    released with the sequence of 1 and 2.
    7-2.  Disconnecting and Connecting Positive Connector for Outdoor Unit
    40 
    						
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