Panasonic Cs Kexxnb4x Cz 18bt1u Service Manual
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5-4. Heating Capacity Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 Power Supply : 115V Single Phase 60Hz < Heating Capacity > TH : Total Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) DB : Outdoor Ambient Temp. 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WB 2. 3. Above data represents the value when the operation frequency of a compressor is fixed.Above data does not take Defrost Operation, Overload Prevention Protection, and/or Cold Air Prevention Protection during heating operation into account. For this reason, the value may vary from the actual heating characteristics. NOTE RATING CAPACITY: 13,600 BTU/h AIR FLOW RATE: 268 CFM OUTDOOR INDOOR ENT. TEMP. oF (oC) AMBIENT TEMP. oF (oC) WB 60 65 70 75 80 (15.6) (18.3) (21.1) (23.9) (26.7) 0 (-17.8) TH 7,510 7,540 7,560 7,580 7,590 CI 0.840.880.920.961.00 3 (-16.1) TH 7,760 7,790 7,810 7,830 7,840 CI 0.860.900.940.981.02 8 (-13.3) TH 8,350 8,380 8,410 8,420 8,440 CI 0.890.940.981.031.07 13 (-10.6) TH 8,980 9,000 9,030 9,050 9,060 CI 0.930.981.031.081.12 18 (-7.8) TH 9,660 9,690 9,720 9,730 9,750 CI 0.981.031.081.131.18 23 (-5.0) TH 10,390 10,420 10,440 10,460 10,470 CI 1.031.081.141.191.25 28 (-2.2) TH 11,150 11,180 11,200 11,210 11,220 CI 1.081.141.201.261.32 33 (0.6) TH 11,930 11,960 11,980 12,000 11,740 CI 1.131.201.261.331.39 38 (3.3) TH 12,720 12,750 12,770 12,780 11,740 CI 1.191.261.331.401.44 43 (6.1) TH 13,560 13,580 # 13,600 13,010 11,740 CI 1.251.321.401.441.44 48 (8.9) TH 14,420 14,440 14,120 13,010 11,740 CI 1.311.391.441.441.44 53 (11.7) TH 15,290 15,020 14,200 13,010 11,740 CI 1.441.441.441.441.44 58 (14.4) TH 15,990 15,080 14,240 13,010 11,740 CI 1.441.441.441.441.44 63 (17.2) TH 16,000 15,070 14,220 13,010 11,740 CI 1.441.441.441.441.44 65 (18.3) TH 15,980 15,050 14,190 13,010 11,740 CI 1.441.441.441.441.44 31
Indoor Unit : CS-KE18NB4UW & CZ-18BT1U Outdoor Unit : CU-KE18NKU Power Supply : 230V Single Phase 60Hz < Heating Capacity > TH : Total Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) DB : Outdoor Ambient Temp. 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WB 2. 3. Above data represents the value when the operation frequency of a compressor is fixed.Above data does not take Defrost Operation, Overload Prevention Protection, and/or Cold Air Prevention Protection during heating operation into account. For this reason, the value may vary from the actual heating characteristics. NOTE RATING CAPACITY: 20,400 BTU/h AIR FLOW RATE: 383 CFM OUTDOOR INDOOR ENT. TEMP. oF (oC) AMBIENT TEMP. oF (oC) WB 60 65 70 75 80 (15.6) (18.3) (21.1) (23.9) (26.7) 0 (-17.8) TH 11,350 11,400 11,440 11,480 11,510 CI 1.351.411.471.531.59 3 (-16.1) TH 11,720 11,770 11,820 11,850 11,890 CI 1.371.441.501.561.62 8 (-13.3) TH 12,600 12,650 12,700 12,750 12,780 CI 1.431.501.571.641.71 13 (-10.6) TH 13,520 13,580 13,630 13,670 13,710 CI 1.501.571.651.721.80 18 (-7.8) TH 14,540 14,600 14,650 14,700 14,730 CI 1.571.651.741.821.90 23 (-5.0) TH 15,610 15,670 15,730 15,770 15,810 CI 1.651.741.831.922.00 28 (-2.2) TH 16,730 16,800 16,850 16,890 16,770 CI 1.741.831.932.022.12 33 (0.6) TH 17,900 17,960 18,010 18,060 16,770 CI 1.831.932.042.142.24 38 (3.3) TH 19,050 19,120 19,170 18,590 16,770 CI 1.922.032.142.252.36 43 (6.1) TH 20,290 20,350 # 20,400 18,590 16,770 CI 2.022.142.262.382.50 48 (8.9) TH 21,550 21,610 20,410 18,590 16,770 CI 2.132.262.392.522.64 53 (11.7) TH 22,830 22,230 20,410 18,590 16,770 CI 2.392.532.532.662.80 58 (14.4) TH 23,990 22,230 20,410 18,590 16,770 CI 2.372.522.672.812.96 63 (17.2) TH 23,990 22,230 20,410 18,590 16,770 CI 2.512.672.822.983.13 65 (18.3) TH 23,990 22,230 20,410 18,590 16,770 CI 2.572.732.893.053.21 32
6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor + Compressor Performance at 115V Single-phase 60Hz Rating conditions Running amp. A 0.21 Power input W 1812.39 1,242 Heating Cooling 12.6 1,260 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor + Compressor Performance at 115V Single-phase 60Hz Rating conditions Running amp. A 0.25 Power input W 2014.35 1,44014.6 1,460 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 70 °F (21.1 °C) DB Outdoor air temperature 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WB 33
Indoor Unit CZ-KE18NB4U & CZ-18BT1U Outdoor Unit CU-KE18NKU 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 Rating conditions: Indoor air temperature 70 °F (21.1 °C) DB Outdoor air temperature 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WB Heating Cooling 8.3 1,860 Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 230V Single-phase 60Hz Rating conditions Running amp. 0.19 Power input 2710.31 2,31310.5 2,340 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 Heating Cooling < 230V > < 208V > (2) Voltage:208V (1) Voltage:230V 9.1 1,860 Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 208V Single-phase 60Hz Rating conditions Running amp. 0.2 Power input 2711.3 2,31311.5 2,340 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 70 °F (21.1 °C) DB Outdoor air temperature 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WBComplete Unit Complete Unit Complete Unit Complete Unit 34
6-2. Electric Wiring Diagrams Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & 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 35
8FA2-5251-11900-2 Outdoor Unit CU-KE18NKU 25A CONTROLLER DCFM MV0RV 0 RV1 FAN MOTOR 1 234567 BLKWHTREDBLUYEL BLKWHTREDBLUYEL BLKBLK REDRED w w w w w w ww ww12345512431212 12345671245673 12 1234 3455 1 122 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) 2P-CONNECTOR (WHT) WHTWHT WHT REDRED(PINK) RED(PINK) WHT WHT WHT WHTWHT WHT BLU BLU U V W BLKBLKBLKBLKYELYELORGGRYYELWHTRED 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 FM 4WAY VALVE COILRVL1 L2 E1 w GRNGRNGRN E2 E ACIN1 ACIN2 SI-A 21 2 1 COMPRESSOR MOTOROVERLOAD RELAY (OLR) 3P-CONNECTOR (WHT) BLK WHT 37
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 38
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 39
7-3. Disassembly Procedure 7-3-1. Remove the air intake grill. (1) Slide the 2 latches each to the corresponding arrow direction. (Fig. 1 and Fig. 2) Open downward the air intake grill located on the latch side. (2) Undo the air intake grill drop preventive hook. (Fig. 3) Undo the 2 hinges for the grill and remove the air intake grill. 7-3-2. Disconnect the connectors in the control box. (1) Remove the 2 screws and remove the control box cover. (Fig. 4) (2) Disconnect the connectors CN04 (FLAP 5P), CN12 (RC 4P) and CN13 (IND 7P). (Fig. 5) Latch LatchHookHinge Air intake grill Screw Control box coverCN13CN04 CN12 Fig.1 Fig.4 Fig.5Fig.2 Fig.3 Hinge Control PCboard To avoid electrical shock hazard, be sure to disconnect power before attempting to disassemble the unit. When a footstool, etc. is used for disassembling the indoor unit, be careful not to fall down. If you fall down, you might be injured seriously. WARNING 40