26
9. Electronic Circuit Diagram
9.1 Indoor
Unit
1
5
4
3
2
1
5
4
3
2
INTAKE LOUVER
MOTOR
1
5
4
3
2
1
5
4
3
2
MECHA VANE-R
(ROTATION)
1
5
4
3
2
1
5
4
3
2
4321
CN-STM1
(GRN)
CN-STM4
(BLU)
ELECTRONIC CONTROLLER
(MAIN)
2
1
PIPING TEMPERATURE SENSOR (THERMISTOR)
NTC
12
SUCTION TEMPERATURE SENSOR (THERMISTOR)
2
1
NTC
12
CN-TH1
(BLU)
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
T
e
mperature (ºC)
Resistance (kΩ)
20
30
40
50
1
2
1
2
Pipe temp. Sensor
Intake Air
Temp.
Sensor
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
W
W
W
W
W
W
W
W
W
W
W
W
W
W
5
4
3
2
1
1
5
4
2
3
VOUT
VCC
GND
1
2
3
4
5
ELECTRONIC CONTROLLER
(DISPLAY)
R307
270
5V
*R323
*CN-DISP
(WHT)
*CN-DISP
(WHT)
*CN-RMT
(WHT)
CN-RCV
(WHT)
CN-RCV
(RED)
R306
270
LED301
R324
1/8W
0
10K
E
C
NC1
5V
Dust1
Dust2
Dust1
Dust2
nanoe-G
Timer
Power
NC2
NC1
1
2
3
4
5
6
7
8
NC2
B
4.7k
-50V
-100mA
R305
390
Q306
GND
R303
270
R302
270
R301
270
R308
390
*R322
*R321
10K
E
C
B
4.7k
-50V
-100mA
Q305
GND
GND
5V
ELECTRONIC CONTROLLER
(RECEIVER)
R209
47
5V
*R214
*R58
*C47
*C49
*C45
0.1μ
*C14
3300p
*R54
270
*R37
10k
*R64
*R210
R201
*JP201
*R211
*JP202
*SEN201
NONE
E
C
AK
IC201
LED201
white
*R212
*JP203
*R213
*JP204
C202
0.01μ
16V
C3
0.1μ
16V
C201
47μ
6.3V
5V
JR6
5V
JR7
JR9
REMOTE CONTROLLER
iCOMFORT
TEMP
TEMP
SHOWER /
DIRECT
OFF/ON
CN-STM601
(WHT)
HIGH
VOLTAGE POWER SUPPLY
CN1
(WHT)
4
3
2
1
4
3
2
1
*CN-CLN
(GRN)
12V
*C23
*C24
*C26
*C29
*R12
*R14
*Q01
*Q02
*R2
*R3
EC
B
*F301
32V 500mA
5V
*R10
5V
*Q04
E
C
B
CN2
GND
-6.0kV
WW
CN-501 (WHT)
CN-SW (WHT)
12
21
ELECTRONIC CONTROLLER
(EMERGENCY SWITCH)
C4
0.01μ
SW501
1
2
5V
R43
10k
R42
1k
5V
ELECTRONIC CONTROLLER
(CONNECTOR)
CN-STM3
(WHT)
8
7
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
13
W
W
W
W
W
W
W
W
W
W
W
W
W
L/R VANE
MOTOR
CN-STM604
(YLW)
1
5
4
3
2
IC07
IC06
10
7
16
1
15
2
14
3
12V
CN-STM5
(YLW)
CN-STM6
(WHT)
IC06
14
3
13
4
12
5
11
6
15
2
12V
IC03
IC05
16
1
15
2
14
3
13
4
12
5
11
6
10
7
16
1
IC07
13
4
12
5
11
6
10
7
JR3
IC05
14
3
15
2
13
4
12
5
11
6
10
7
12V
12V
*CN-TH2
(RED)
R47 1/2W
68
R46 1/2W
68
1
5
4
3
2
1
5
4
3
2
MECHA VANE-L
(ROTATION)
CN-STM603
(BLU)
1
5
4
3
2
1
5
4
3
2
MECHA LOUVER ARM-L
(REVOLUTION)
CN-STM602
(GRN)
1
5
4
3
2
1
5
4
3
2
12V
MECHA LOUVER ARM-R
(REVOLUTION)
R62
15k
1%
R87
1k
R88
1k
R61
20k
1%
C25
1μ
16V
C27
1μ
16V
5V
CN1 (WHT)
DUST
SENSOR
15
12
3
4
WWW
W
*R100
*R99
*C62
*C63
5V
5V
R97
200k
R98
200k
R106
10k
R105
1.2k
C64
1μ
10V
E
C
B
-32V
-2A
Q17
5V
CN-DUST (YLW)
O
BR
Y
PE
R
BR
R
O
Y
P
R
Y
BR
O
PE
O
BR
Y
PE
R
BR
R
O
Y
P
R
Y
BR
O
PE
W
BL
G
W
W
W
MINUS
ION
GENERATOR
Y/G
EVAPORATOR
FAN MOTOR
CN-FM (WHT)
Y
1
4
7
B
W
BL
R
M
FUSE301
T3.15A L250V
TEMP. FUSE
102°C (3A)
1
2
3
AC303 (WHT)
AC304 (RED)
AC306 (BLK)
G301 (GRN)
W
R
G
BL
TERMINAL
BOARD
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
GROUNDING
TERMINAL
*C48
*C15
5V
*R89
*R40
5V
JR8
R39
5.1k
*C38
C54
0.1μ
25V
C55
0.1μ
25V
E
C
B