Electronic Circuit Diagram; Indoor Unit - Panasonic CU-Z20VKE Series Installation Instruction

10. Electronic Circuit Diagram

10.1 Indoor Unit

ELECTRONIC CONTROLLER (SUB)
(YELLOW)
AC302
GROUNDING
TERMINAL
TERMINAL
BOARD Y/G
BR
L1
N
Y
S1
2
3
TEMP. FUSE
102ºC (250V, 3A)
TEMP. FUSE
102ºC (250V, 3A)
GROUNDING
TERMINAL
Y/G
EVAPORATOR
FAN MOTOR
(FOR Z20/25/35/42VKEW &
XZ20/25/35VKEW ONLY)
ELECTRONIC
CONTROLLER
(RECEIVER)
REMOTE CONTROLLER
ELECTRONIC CONTROLLER
5V
(DISPLAY)
A
LED201
A
LED202
A
13V
LED203
R221
A
LED204
Q1
(FOR Z50/71VKEW & XZ50VKEW ONLY)
5V
5V
IC401
R409
C
47
SEN201
VOUT 1
VCC 2
E
GND 3
C401
47u
6.3V
4 5
KRE
R413 JP404 R414 GND-A
5V
GND-A
R201
A K
LED201
R202
A K
LED202
R203
A K
13V
LED203
R221 R204
A K
R223
LED204 CN-DISP
GND-A
R222 R214
C
B
Q1
ELECTRONIC
E
CONTROLLER
(RECEIVER & DISPLAY)
GND-A
RY-PWR
RY-PWR2
G7
CN-101
(BROWN) (BLACK)
(GRN)
ACL501 AC306
CN-DATA 1
(GRN)
5V
R112
R113
C67
50V
AC306 (BLK)
BLACK
T3.15A L250V
AC303 (WHT)
W
AC304 (RED)
R
G301 (GRN)
G
COMMUNICATION
Y
7
B
M
6
W CN-FM (WHT)
5
BL
4
R
1
CN-RCV
(YLW)
1
W
1
W
CN-RCV
W
(WHT)
W
4
4
C380
NONE
R201
K
CN-DISP
R202
(WHT)
K
6
1
W
R203
W
W
K
W
W
R204
W
K
6 1
R214
CN-DISP
C
GND-A
(YLW)
B
E
GND-A
1
2
3
4
5
C402
0.01u
6
16V
B1
7
4
CN-RCV
1
W
(YLW)
W
1
W
W
6
W
W CN-DISP
W
(YLW)
W
8
1
(WHT)
ELECTRONIC CONTROLLER (MAIN)
12V_1
Q18
C65 R108
-20V
-2A
R109
Q21
C
4.7k
B
50V 10K
100mA
E
12V_2
5V_3
RY-PWR
C400
R401
RY-PWR2
G3
CN-102 CN-103
1 5 3
1 1 5
(WHT) (WHT)
1 3 1 5
CN-DATA 3
1 5
12V
(YLW)
CN-DATA 2
(YLW) 5V
G7
12V
R402
5V
R403
NONE
510
C404
1000p
RY-PWR
12V
B1
NONE
50V
FUSE301
SW01
NOISE FILTER
CIRCUIT
CIRCUIT
RECTIFICATION
CIRCUIT
5V
R37
10k
5V
C47
R54
NONE
270
C45
12V
F301 5V
5V
32V
500mA
R90
10k L6 L5
CN-RMT
C52
C51
1000p
1000p
C56
50V
JR4
50V
C57
B1
0
B1
R58
IC06
1 16
IC06
2 15
IC06
12V
3 14
IC06
4 13
IC06
5 12
IC06
6 11
IC06
IC05
7 10
R46 R47
16
IC06
IC05
1/3W 1/3W
12V
43 43
15
IC05
14
IC05
13
IC05
BZ01
12
5V
IC05 A48PKM17EPP
12V
11
IC05
R30
10
IC03
1k
IC05
1 16
IC03
2 15
IC03
3 14
IC03
4 13
IC03
5 12
IC03
6 11
IC03
C25 C27
R62 R61
1u 1u
20k
15k R63
16V 16V
1%
1%
B3 B3
39
F303
CN-NANO
32V
(YLW)
500mA
4
P
1
B
W
3
BL
1
5
G7
Q20
C
R93
C401
4.7k
B
10K 50V
100mA G3
E
4 1
GR
5V_3
G7
GR
GR
GR
3
R406
1
R405
NONE
CN-WLAN
G3
(WHT)
C402 C403
8
NONE NONE
G3
Sensor (Thermistor)
Characteristics
70
60
50
40
30
5V
20
10
C49
0
NONE
-10 0
4
1
(WHT)
CN-CNT
(WHT)
5
GR
5
W
BR
G
Y
1
1
CN-STM1
(WHT)
1 1
BR
M
R
UP DOWN LOUVER
O
MOTOR (OUTER)
Y
P
5
5
CN-STM2
(YLW)
1
1
BR
R
M
LEFT RIGHT
O
LOUVER MOTOR
Y
P
5
5
CN-STM3
(BLU)
1
1
BR
R
M
O
UP DOWN LOUVER
Y
MOTOR (INNER)
P
5
5
CN-TH
5V
(RED)
6
PIPING TEMPERATURE SENSOR 2 (THERMISTOR)
t°
PIPING TEMPERATURE SENSOR 1 (THERMISTOR)
t°
t° SUCTION TEMPERATURE SENSOR (THERMISTOR)
1
C28
1
W
CN2
CN1
(WHT)
NANOE
(WHT)
BL
2
GENERATOR
W
5V
TP2
TP3
CN-WLAN
(BLK)
Pipe temp. Sensor
Intake Air Temp. Sensor
10 20 30 40 50
Temperature (°C)