Panasonic CS-Z20XKEW Service Manual page 39

10.2.2 CU-Z35XKE CU-Z42XKE
TO INDOOR UNIT
S1 2 3
RED
DATA
(RED)
AC-BLK
(BLK)
FUSE 1
(20A 250V)
AC-WHT
(WHT)
GRN
FG1
(GRN)
GRN
FG2
(GRN)
CN-MTR2
(WHT)
1
W
MS
FAN 3
U
MOTOR
3~
V
5
CN-MTR1
(RED)
1
5V
R403
1k
3
C401
0.1u
25V
B1
G5
REACTOR
TERMINAL
BOARD
GRY
RAT2
(GRY)
NOISE FILTER
FUSE 5
CIRCUIT
(20A 250V)
FUSE 6
FUSE 8
(20A 250V)
T3.15A
L250V
PFC
RECTIFICATION
CIRCUIT
CIRCUIT
FUSE 3
T3.15A L250V
10
14
16
IC19
C414
0.01u
50V
B1
G6
ELECTRONIC CONTROLLER
Sensor (Thermistor)
Characteristics
70
Outdoor Air Sensor
Outdoor Heat Exchanger
60
Sensor
50
40
30
20
10
0
-10 0 10 20
o
Temperature ( C)
GRY
RAT1
(GRY)
R21
15.8k
COMMUNICATION
1%
CIRCUIT
C9
1u
10V
B1
RECTIFICATION
CIRCUIT
SWITCHING
POWER
SUPPLY CIRCUIT
Q1
P
U
V
N
W
G5
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
30 40 50 20 40
Temperature (
39
5V
R22
15k C98
1% 470u
10V
C10
KY
1u
10V
B1 CN–TH1
G5 (WHT)
G5
OUTDOOR AIR TEMP. SENSOR (THERMISTOR)
1
t°
t°
4
PIPING TEMP. SENSOR (THERMISTOR)
G5
CN–TANK
5V
(WHT)
1
t°
C99
R28 COMPRESSOR TEMP. SENSOR (THERMISTOR)
3
1u
4.99k
10V
1%
B1
G5
CN–STM1
(WHT)
1
*IC8
1 16
2 15
M
3
14
4 13 15V
6
9
COM *IC8
GND
8
G4A
CN–HOT
(WHT)
1 YLW
16V
*Q55
3 YLW
*R143
*D57
*R105
C
G4A
4.7k
B
10k
E
U (RED) RED
V (BLU) BLU
W (YLW)
YLW
COMPRESSOR
60 80 100 120 140
o
C)
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
ELECTRO-MAGNETIC COIL
(4-WAY VALVE)
MS
3~