Panasonic CS-TZ20WKEW Service Manual page 53

10.2.2 CU-TZ50WKE CU-TZ60WKE CU-TZ71WKE CU-RZ50WKE
TO INDOOR UNIT
TERMINAL
S1 2 3
BOARD
RED
DATA
(RED)
AC-BLK
(BLK)
FUSE 1
(25A 250V)
AC-WHT
(WHT)
GRN
FG1
(GRN)
GRN
FG2
(GRN)
CN-MTR2
(WHT)
1
W
FAN MS 3
U
MOTOR 3~
5
V
1
CN-MTR1
(RED)
3
70
60
50
40
30
20
10
0
-10
REACTOR
GRY
RAT2
(GRY)
NOISE FILTER
FUSE 5
CIRCUIT
(20A 250V)
FUSE 6
FUSE 8
(20A 250V)
(T3.15A,
L250V)
PFC
RECTIFCATION
CIRCUIT
CIRCUIT
IC19
10
14
16
5V
C401
0.1u
25V
ELECTRONIC CONTROLLER
B1
G5
Sensor (Thermistor)
Characteristics
Outdoor Air Sensor
1
Outdoor Heat Exchanger
2
Sensor
1
2
0 10 20 30 40 50
Temperature ( o C)
GRY
RAT1
(GRY)
COMMUNICATION
CIRCUIT
R28
4.99k
1%
G5
RECTIFICATION
CIRCUIT
1 18
2 17
3 16
SWITCHING
4 15
POWER
IC8
SUPPLY CIRCUIT
C921
0.1u
50V
FUSE 3
B3
T3.15A L250V
Q1 U (RED)
P
U
V (BLU)
V
W (YLW)
N
W
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20 40 60
Temperature (
53
5V
R21 R22
C98
15.8k 15k
C10
470u
1% 1%
1u
10V
C9
10V
KY
OUTDOOR AIR TEMP. SENSOR
1u
B1
10V (THERMISTOR)
G5
B1
1
G5
G5
t°
t°
C99
1u
5V 4 PIPING TEMP.SENSOR (THERMISTOR)
CN–TH1
10V
(WHT)
B1
1
t°
3
COMPRESSOR TEMP.SENSOR
CN–TANK
(WHT) (THERMISTOR)
1
M
15V
6
16V CN–STM1
(WHT)
Q55
10
COMMON D59
IC8
YLW
1
GND
9
G4A
3
YLW
CN–HOT
G4A
(WHT)
RED
BLU
YLW
COMPRESSOR
80 100 120 140
o C)
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
ELECTRO-MAGNETIC COIL
(4-WAY VALVE)
MS
3~