Panasonic Cs Ksxxnb4x Cz 18bt1u Technical Service Manual

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...

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...

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...

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...

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...

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...

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...

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...