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26
9. Electronic Circuit Diagram
9.1 Indoor
Unit
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
14
32
50
Temperature (
o
F)
Resistance (kΩ)
68
86
104
122
1
2
1
2
Pipe Temp. Sensor
Intake Air Temp. Sensor
M
M
1
1
2
3
TERMINAL
BOARD
Y/G
DRAIN PUMP
CN-DRMTR1
(BLUE)
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
CN-FM
(WHITE)
CN-AC (WHITE)
CN-DISP2
(WHITE)
CN-DISP1
(YELLOW)
CN-T2
(WHITE)
CN-DISP
(WHITE)
1
1 2 3 4
BR R O Y P B V
GR
BL
5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4
1 2 3 4
1 2 3 4
5 6 7 8
4
BL BL O O
R
R
BL
G
TRANSFORMER
DISPLAY & RECEIVER
BL Y BR
GR
R O
V W
HAJEM-A
(WHITE)
CN-CNT
(WHITE)
CN-TH
(WHITE)
INDOOR PIPE
TEMPERATURE
SENSOR 2
INDOOR PIPE
TEMPERATURE
SENSOR 1
FLOAT
SWITCH
INDOOR AIR
TEMPERATURE
SENSOR
CN-HT
(WHITE)
SW1
DRAIN TEST
SW2
CN-FSW
(GREEN)
ELECTRONIC
CONTROLLER
RECTIFICATION
CIRCUIT
FUSE
T3.15A L250V
MOTOR
Y
GROUNDING
TERMINAL
TO OUTDOOR UNIT
CN-T1
(BLUE)
G
6
1
5
2
B
Y
W
BL
R
Y
3
3
5
7
1
1
6
7
1
4
1
1
1
1
2
BL
t˚
t˚
t˚
BL
BL
BL
BL
BL
BL
BL
3
6
5
5
4
1
BL
W
R
REMOTE CONTROLLER
DB3
S1WB(A)60
R74
22k
1/4W
DB2
S1WB(A)60
R75
5.1k
IC5
NJM7812FA
12V
i
o
g
KB
C46
0.1u
25V
C8
NONE
12V
5V
KB
C51
1u
10V
KB
C31
1u
10V
KB
C30
1u
10V
R89
20.0k
1%
R63
20.0k
1%
R62
15.0k
1%
5V
L5
L6
R82
10k
R90
10k
KB
C66
1000p
50V
KB
C52
1000p
50V
C56
12V
5V
5V
KB
C32
0.01u
R20
10k
KB
C38
0.01u
R56
10k
KB
C35
1000p
50V
R65
10k
5V
12V
5V
R32
10k
C34
0.1u
16V
KB
KB
C17
0.01u
KB
C22
3300p
5V
R201
10k
R202
47
C202
0.1uF
SW201
C201
47uF
6.3V
+
IC201
GP1UM262RK
VOUT
VCC
1
2
3
5
4
GND
5V
5V
5V
R2 0
POWER GREEN
TIMER ORANGE
POWERFUL ORANGE
QUIET ORANGE
R3 0
R4 0
R5 0
LED202
LED203
LED204
LED205