Panasonic CS-Z20VKEW

41
10.2.2 CU-Z25VKE CU-Z35VKE CU-Z42VKE CU-Z50VKE CU-Z71VKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10 0 10
Temperature (
o
C)
Resistance (kΩ)
20 30 40 50
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20 40 60
Temperature (
o
C)
Resistance (kΩ)
80 100 120 140
tº
tº
tº
M
TO INDOOR UNIT
TERMINAL
BOARD
S1 2 3
RED
GRY GRY
REACTOR
RAT2
(GRY)
RAT1
(GRY)
DATA
(RED)
BLK
AC-BLK
(BLK)
WHT
GRN
GRN
FAN
MOTOR
FUSE 1
FOR Z25/35/42VK
(20A 250V)
FOR Z50/71VK
(25A 250V)
FUSE 3
T3.15A L250V
AC-WHT
(WHT)
FG1 (GRN)
CN-MTR2
(WHT)
CN-MTR1
(RED)
FG2 (GRN)
1
10
P
N
U
U (RED)
V (BLU)
W (YLW)
CN-STM1
(WHT)
V
W
Q1
14
W
IC19
U
V
16
1
3
3
5
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
PFC
CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING
POWER
SUPPLY CIRCUIT
CN-TH1
(WHT)
CN-TANK
(WHT)
CN-HOT
(WHT)
1
1
1
1
3
3
6
4
OUTDOOR AIR TEMP. SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
COMPRESSOR TEMP.
SENSOR (THERMISTOR)
ELECTRO-MAGNETIC
COIL
(4-WAY VALVE)
YLW
YLW
YLW
RED
BLU
COMPRESSOR
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
MS
3~
ELECTRONIC CONTROLLER
MS
3~
FUSE 8
T3.15A
L250V
FUSE 6
(20A 250V)
FUSE 5
(20A 250V)
5V
G5
C401
0.1u
25V
B1
15V
IC8
16
15
14
13
1
2
3
4
5V
G5
C99
1u
10V
B1
R28
4.99k
1%
5V
C98
470u
10V
KY
G5
G5
G5
C10
1u
10V
B1
R22
15k
1%
R21
15.8k
1%
C9
1u
10V
B1
G6
C414
0.01u
50V
B1
R403
1k
G4A
16V
Q55
D
S
G