38
10. Electronic Circuit Diagram
10.1 Indoor Unit
MOTOR
Y
7
6
5
5
1
4
1
1
3
CN-FM
(WHITE)
CN-CNT
(WHITE)
41
HAJEM-A
(WHITE)
CN-FSW
(GREEN)
CN-TH
(WHITE)
1
6
BL
INDOOR PIPE
TEMPERATURE
SENSOR 2
INDOOR PIPE
TEMPERATURE
SENSOR 1
INDOOR AIR
TEMPERATURE
SENSOR
t°
t°
t°
BL
BL
BL
BL
BL
1
R
R
OO
BL
FLOAT
SWITCH
BL
3
ELECTRONIC
CONTROLLER
CN-DRMTR1
(BLUE)
B
W
BL
Y
BL
W
G1
3
5
CN-AC (WHITE)
CN-T1 (BLUE)
T3.15A L250V
7
4
BL BL
TRANSFORMER
65 2
CN-T2
(WHITE)
COMMUNICATION
CIRCUIT
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
11
R
Y
DRAIN PUMP
GROUNDING
TERMINAL
TERMINAL
BOARD
M
M
1
1
2
3
R
TO OUTDOOR UNIT
FUSE
Y/G
12345678
7146823 5
V
BRPBR Y GR
O
4312
6
342
Y
BR
R
O
CON 1 (WHITE)
WIRED REMOTE CONTROLLER
CN-DISP
(WHITE)
(WHITE)
(BLACK)
G
70
60
50
40
30
20
-10 0 10 20 30 40 50
10
0
Resistance (kΩ)
Sensor (Thermistor)
Characteristics
Pipe temp. Sensor
Intake Air Temp. Sensor
Temperature (°C)
C35
R65
5V
5V
5V
R34
BZ
GND
8
IC8
C51C31C30 R89R63R62
5V
C22
C34
C17
R32
C67
R88
R26
R25
12V
C8
C46
R75
DB2
IC5
12V
R87
C45
R74
DB02_GND
5V
C36
12 3
R51
R67
5V
R22
C15
R54
1
2
3
4
SW1
DRAIN PUMP
TEST RUN
SW2
5V
C32
R20
R30
C38
R56
5V
L5
L6
R82
R90
C66
C52
C57
C56
12V
5V
CN-FM
1
Vdc
280Vdc - 340Vdc
2-
3-
4 GND
0
5
Vcc
15Vdc
6
feedback output pulses 0-15Vdc
FG
7
speed control input voltage
Vsp
4 - 7
4 - 5
6 - 7
15 volt
15 volt
1 ~ 5 volt
CN-TH
Measure resistance
1-2
Air intake (15KΩ ±5% at 25°C)
3-4
Pipe Temperature Sensor 1 (20KΩ ±5% at 25°C)
5-6
Pipe Temperature Sensor 2 (20KΩ ±5% at 25°C)
JP10
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