
20
8. Electronic Circuit Diagram
8.1 Indoor
Unit
CN-FM
(WHITE)
CN-FSW
(GREEN)
7
6
5
4
41
1
2
65
1
3
1
1
SW2
SW1
DRAIN TEST
FUSE
T3.15A L250V
6
1
CN-TH
(WHITE)
BL
BL
t˚
BL
BL
t˚
BL
BL
t˚
INDOOR PIPE
TEMPERA
T
URE
SENSOR 2 (20K, 3950)
INDOOR PIPE
TEMPERA
T
URE
SENSOR 1 (20K, 3950)
INDOOR AIR
TEMPERA
T
URE
SENSOR (15K, 3950)
ELECTRONIC
CONTROLLER
M
MOT
O
R
Y
B
W
BL
BL
BL
BL
W
R
R
CN-DRMTR1
(BLUE)
Y
Y
G
DRAIN PUMP
Y/G
M 1~
3
2
1
3
5
7
COMMUNICA
TION
CIRCUIT
NOISE FIL
TER
CIRCUIT
CN-AC (WHITE)
GROUNDING
TERMINAL
TERMINAL
BOARD
TO
OUTDOOR UNIT
OO
RR
CN-T1
(BLUE)
CN-T2
(WHITE)
TRANSFORMER
DISPLA
Y
& RECEIVER
BR
BL
BL
Y
B
R
G
R
RO
W
V
BL
GR
12345678
12345678
CN-DISP
(WHITE)
CN-DISP2
(WHITE)
CN-DISP1
(YELLOW)
R
O
Y
P
B
V
1234
1234
5678
1234
G
RECTIFICA
TION
CIRCUIT
14
HAJEM-A
(WHT)
5V
KB C32 0.01u
R20 10k
R30 1k
KB C38 0.01u
R56 10k
1
3
FLOA
T
SWITCH
BL
BL
KB C35
1000p
50V
R65 10k
5V
R66 1k 5%
1/10W
15
CN-CNT
(WHITE)
L5
L6
R82 10k
R90 10k
KB C66
1000p
50V
KB C52
1000p
50V
C57
C56
5V
5V
12V
5V
KB C51 1u 10V
KB C55 0.1u 25V
KB C54 0.1u 25V
KB C53 0.1u 25V
KB C31 1u 10V
KB C30 1u 10V
R89 20.0k 1%
R63 20.0k 1%
R62 15.0k 1%
R97
1k
R96
1k
R95
1k
+
DB3
S1WB(A)60
R74 22k 1/4W
R87 22k 1/4W
C45
+
+
DB2
S1WB(A)60
R75 5.1k
Q8
0.1A 50V
DTC114EKA
10k
10k
b
c
e
IC5
NJM7812FA
12V
i
o
g
FC C6
2200u
35V
KB C16 0.01u 50V
KB C47
0.047u
25V
KB C46 0.1u 25V
NHG
C7
100u 16V
C8
NONE
12V
5V
R76 10k
5V
R88
R24
R26
R25
430
R31 1k
R33 5.1k
R32 10k
360
430
430
C67 0.1u 16V KB
C34 0.1u 16V KB
KB C17 0.01u
KB C22
3300p
C29
NONE
R29 10k
AIR CONDITIONER
OFF/ON
ON
OFF
SET
CANCEL
12
3
TIMER
MODE
TEMP
POWERFUL
QUIET
FAN SPEED
CLOCK
SET
CHECK
RESET
AC
RC
MODE
REMOTE CONTROLLER
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
T
e
mperature (
o
C)
Resistance (kΩ)
20
30
40
50
1
2
1
2
Pipe T
e
mp.
Sensor
Intake Air
Te
mp.
Sensor