37
10. Electronic Circuit Diagram
10.1 Indoor Unit
ELECTRONIC CONTROLLER
(MAIN)
CN–RMT
(WHT)
4
1
W W W W W W W W W W W
5
1
CN–CNT
(WHT)
1
7
4
CN−FM
(WHT)
ELECTRONIC
CONTROLLER
(DISPLAY AND
RECEIVER)
CN-DISP (WHT)
1
11
FAN MOTOR
CN−TH
(RED)
PIPING TEMP. SENSOR 1 (THERMISTOR)
WITHOUT FLEXIBLE PIPE (LOWER)
PIPING TEMP. SENSOR 2 (THERMISTOR)
BLACK FLEXIBLE PIPE (UPPER)
SUCTION TEMP. SENSOR (THERMISTOR)
AC308 (BLK)
RY-PWR
RY-PWR2
AC307 (BRW)
AC303 (WHT)
AC304 (RED)
G301 (GRN)
EVAPORATOR
Y/G
Y/G
BL
BR
W
R
G
TERMINAL
BOARD
SINGLE PHASE
POWER SUPPLY
COMMUNICATION
CIRCUIT
NOISE FILTER
CIRCUIT
TO OUTDOOR UNIT
L1
N
2
S1
3
TEMP. FUSE 102°C
FUSE301
T3.15A L250V
GR GR GR
GR
ELECTRONIC CONTROLLER (WIFI MODULE)
CN-WLAN
(BLK)
CN-WLAN
(WHT)
4
1
3
8
1
RECTIFICATION
CIRCUIT
SW01
CN-DISP (YLW)
M
B
BL
Y
W
R
t°
t°
t°
1
6
1
11
UP DOWN LOUVER
MOTOR (LOWER)
UP DOWN LOUVER
MOTOR (UPPER)
LEFT RIGHT
LOUVER MOTOR
P
BR
R
O
Y
CN-STM3
(BLU)
5
1
1
M
5
BL
W
B
P
W
BL
W
1
5
1
2
HIGH VOLTAGE
POWER SUPPLY
NANOE ION
GENERATOR
CN2
(WHT)
CN1
(WHT)
CN-NANO
(YLW)
4
1
P
BR
R
O
Y
CN-STM2
(YLW)
5
1
1
M
5
P
BR
R
O
Y
CN-STM1
(WHT)
5
1
1
M
5
Y/G (WITH CORE)
G
Y/G (EVA)
REAR VIEW OF TERMINAL BOARD
BR
W
R
BL
5V
*L5
*L6
12V_1
*F301
5V
*C57
*C56
C51
1000p
50V
B1
C52
1000p
50V
B1
R90
10k
R82
10k
5V
C49
NONE
R37
10k
*C45
12V
IC06
11
6
IC06
12
5
IC06
10
7
IC03
16
1
12V
IC06
15
2
IC06
16
1
IC06
14
3
IC06
13
4
12V
IC03
IC03
IC03
IC03
15
14
13
12
2
3
4
5
5V
*C28
*R63
C27
1u
16V
B3
R61
20k
1%
C25
1u
16V
B3
R62
15k
1%
G7
12V
G7
S
C
E
B
D
G
*Q21
*Q18
*Q20
*F303
4.7k
10K
50V
100mA
50V
100mA
C
E
B
4.7k
10K
*R112
5V
C202
0.01u
16V
B1
C201
47u
6.3V
KRE
1
2
4
5
3
5V
GND-A
IC201
R210
47
OUT
VCC
@cirPi
@cirPi
GND
*LED204
A
K
*LED206
A
K
*LED205
A
K
*R204
*LED203
A
K
*R203
*LED202
A
K
*R202
*LED201
A
K
*R201
*R205
*R206
5V
GND-A
SEN201
5V
5V
*C401
*R405
*C402
NONE
*R406
NONE
*C403
NONE
REMOTE CONTROLLER
70
60
50
40
30
20
-10
0
10
20
30
40
50
10
0
Re
s
is
ta
n
c
e
(k
Ω
)
Sensor (Thermistor)
Characteristics
Pipe temp. Sensor
Intake Air Temp. Sensor
Temperature (°C)
