Panasonic CU-BZ25XKE Service Manual page 31

10.2.2 CU-BZ50XKE CU-BZ60XKE
TO INDOOR UNIT
1 2 3
RED
DATA
(RED)
AC-BLK
(BLK)
FUSE1
(25A 250V)
AC-WHT
(WHT)
FG1
(GRN)
GRN
FG2
(GRN)
GRN
FAN MOTOR CN-MTR2
(WHT)
1
MS
3
3 ~
5
CN-MTR1
Red
1 1
2 2
3 3
ELECTRONIC CONTROLLER
TERMINAL
BOARD
GRY
RAT2
(GRY)
NOISE
FILTER
CIRCUIT
PFC
CIRCUIT
10
W
U
V
14
16
IC19
5V
C401
0.1μ
25V
G5
Sensor (Thermistor)
Characteristics
70
1 Outdoor Air Sensor
2 Outdoor Heat Exchanger
60
Sensor
50
40
1
30
2
20
10
0
-10 0 10 20 30
o
Temperature ( C)
REACTOR
GRY
RAT1
(GRY)
FUSE6
(20A 250V)
COMMUNICATION
CIRCUIT
FUSE8
T3.15A
L250V
RECTIFICATION
FUSE5
(20A 250V)
SWITCHING
RECTIFICATION
POWER
CIRCUIT
SUPPLY CIRCUIT
FUSE3
T3.15A L250V
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
40 50 20
31
5V
R21 R22
15.8k 15k
1% 1%
C10
C9
1μ
1μ
10V
10V
G5
G5
G5
CIRCUIT
5V
C99
R28
1μ
4.99k
10V
1%
G5
15V
C921 9
*CN-STM1
0.1μ
COMMON *IC8
50V
GND
8
16V
G4A
S
D *Q55
*R143
G
*D57 *D59
*CN-HOT
G4A
Q1
P
U
V
W (YLW)
W
N
40 60 80 100 120 140
o
Temperature ( C)
+ C98
470μ
10V
OUTDOOR AIR TEMP.
SENSOR (15kΩ 3950)
1
2 t°
3
4 t°
CN-TH1 PIPING TEMP.
SENSOR1 (4.96kΩ 3800)
1
3 t°
COMP. TEMP.
CN-TANK
SENSOR (50kΩ 3950)
6
5
ELECTRO-
4
M
MAGNETIC
3
2
COIL
1
(EXPANSION
VALVE)
3
2
1
4-WAYS VALVE
U (RED) RED
V (BLU) BLU
MS
3 ~
YLW
COMPRESSOR