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-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