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CS-UE7RKD CS-UE9RKD CS-UE12RKD CS-UE18RKD CU-UE7RKD CU-UE9RKD CU-UE12RKD CU-UE18RKD
Pages
127
Size
12.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-ue7rkd-cs-ue9rkd-cs-ue12rkd-cs-ue18rkd-cu-ue7rk.pdf
Date
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33 
9.1.2 
CS-UE12RKD 
 
ELECTRONIC
CONTROLLER
(DISPLAY & RECEIVER)
POWER
(green)
TIMER
(orange)
LED201
LED202
GND-A
5V_
1
2
3
Vout
Vcc
GND
GND
+
GND
5
4
IC1
C201
47µ
6.3V
C202
0.01µ
16V
70
60
50
R
esi
sta
nce
(k
Ω
)
Temperature (ºC)
Sensor (Thermistor)
Characteristics
40
30
20
10
-10
0
10
20
30
40
50
0
Pipe Temp. Sensor
Intake Air Temp. Sensor
1
1
2
2
5V
4 3 2 1
21
0
20
9
20
8
20
7
*C49
*C45
*R37
*R54
5V
*C48
*C47
5V
R85
5.1k
*CN-DISP
YELLOW
7
2
3
4
5
6
CN-DISP
WHITE
5
4
7
6
3
2
1
P.C.B
PCB201
16
17
R201 470
1/10W 5%
R202 2k
1/10W 5%
157
159
155
11
10
9
8
7
*R89
*CN-RMT
9
8
11
10
12
1
5V
C3
0.1µ
16V
SW01
POWERFUL
(orange)
QUIET
(orange)
C25
1µ
16V
R62
15.0k
C27
1µ
16V
R61
20.0k
SUCTION
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
PIPING
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
4
3
2
1
t
0
169
170
5V
*CN-TH
RED
t
0
REMOTE CONTROLLER
UP DOWN
LOUVER MOTOR
CN-STM1
WHITE
1
5
4
3
2
12V
74
144
70
64
61
M
12V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC03
R47 1/2W
68    5%
143 R46 1/2W
68    5%
GND
VCC
MODE
TEMP
OFF/ON
TIMER
SET
CANCEL
ON
OFF
1
2
3
AIR SWING
FAN SPEED
SET
CHECK CLOCK
RESET
AC
RC
FAN
SPEED
AIR
SWING
AUTO
HEAT
COOL
DRY
POW ERFUL /
QUIET
ELECTRONIC CONTROLLER
(MAIN)
FAN MOTOR
CN-FM
(WHT)
Y
7
4
1
B
W
BL
R
M
Y/G
EVAPORATOR
FUSE301
T3.15A L250V
TEMP. FUSE
102°C (3A)
1
2
3
AC303
(WHT)
AC306
(BLK)
AC304
(RED)
G301
(GRN)
R
W
G
BL
TERMINAL
BOARD
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
COMMUNICATION
CIRCUIT
TO
 O
U
TD
O
O
R 
UN
IT
GROUNDING
TERMINAL
 
 
 
34 
9.1.3 
CS-UE18RKD 
 
ELECTRONIC
CONTROLLER
(DISPLAY & RECEIVER)
POWER
(green)
TIMER
(orange)
LED201
LED202
GND-A
5V_
1
2
3
Vout
Vcc
GND
GND
+
GND
5
4
IC1
C201
47µ
6.3V
C202
0.01µ
16V
70
60
50
R
es
ista
nce
(k
Ω
)
Temperature (ºC)
Sensor (Thermistor)
Characteristics
40
30
20
10
-10
0
10
20
30
40
50
0
Pipe Temp. Sensor
Intake Air Temp. Sensor
1
1
2
2
5V
4 3 2 1
21
0
20
9
20
8
20
7
*C49
*C45
*R37
*R54
5V
*C48
*C47
5V
R85
5.1k
*CN-DISP
YELLOW
7
2
3
4
5
6
CN-DISP
WHITE
5
4
7
6
3
2
1
P.C.B
PCB201
16
17
R201 470
1/10W 5%
R202 2k
1/10W 5%
157
159
155
11
10
9
8
7
*R89
*CN-RMT
9
8
11
10
1
5V
C3
0.1µ
16V
ELECTRONIC CONTROLLER
(MAIN)
SW01
4
1
FAN MOTOR
CN-FM (WHT)
Y
7
4
1
B
W
BL
R
M
FUSE301
T3.15A L250V
RY
-P
WR
RY-PWR2
Y/G
Y/G
TEMP.
FUSE
102°C (3A)
TEMP.
FUSE
102°C (3A)
EVAPORATOR
1
2
3
AC303
(WHT)
AC304
(RED)
G301
(GRN)
GROUNDING
TERMINAL
L
R
W
G
P
BL
BR
TERMINAL
BOARD
GROUNDING
TERMINAL
L
N
SI
N
G
LE
 PH
A
SE
P
O
W
E
R
 SU
PP
LY
1ø
 2
20
-2
3
0
V
 5
0
H
z
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
POWERFUL
(orange)
QUIET
(orange)
REMOTE CONTROLLER
MODE
TEMP
OFF/ON
TIMER
SET
CANCEL
ON
OFF
1
2
3
FAN SPEED
SET
CHECK CLOCK
RESET
AC
RC
AUTO
HEAT
COOL
DRY
AIR SWING
FAN
SPEED
AIR
SWING
POW ERFUL /
QUIET
UP DOWN
LOUVER MOTOR
CN-STM1
WHITE
1
5
4
3
2
12V
74
144
70
64
61
M
12V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC03
R47 1/2W
68    5%
143 R46 1/2W
68    5%
GND
VCC
*CN-STM2
LEFT RIGHT
LOUVER MOTOR
1
5
4
3
2
12V
398
397
396
395
M
GND
VCC
5V
R30
1k
BZ
BZ01
12V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC05
C25
1µ
16V
R62
15.0k
C27
1µ
16V
R61
20.0k
SUCTION
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
PIPING
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
4
3
2
1
t
0
169
170
5V
*CN-TH
RED
t
0
 
35 
9.2 Outdoor 
Unit 
9.2.1 
CU-UE7RKD  CU-UE9RKD  CU-UE12RKD 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
R
es
ist
anc
e 
(k
Ω)
20
30
40
50
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40
60
Temperature (
o
C)
R
es
ist
anc
e 
(k
Ω)
80
100
120
140
SINGLE PHASE
POWER SUPPLY
OUTDOOR AIR TEMP. SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
COMP. TEMPERATURE SENSOR
(THERMISTOR)
U (RED)
RED
P
FUSE10 3
T3.15A L250 V
GRY
GRY
BLK
REACTOR
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
FAN MOTOR
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
TERMINAL
BOARD
2
(W HITE )
1
(BLAC K)
L
N
3
(RED)
RED
GRN
GRN
FUSE 101
(20A 250V)
FUSE102
T3.15A L250V
FUSE104
(15A 250V)
BLK
WH
T
DATA
(RED)
AC-BLK
(BLK)
AC – WHT
(WHT)
FG 1
(GRN)
FG 2
(GRN)
M
ELECTRONIC CONTROLLER
FM1 (BLU)
FM2 (RED)
FM3 (YLW)
BLU
RED
YLW
1
FAN MOTOR
RAT1
(GRY)
RAT2
(GRY)
N
U
V
W
BLU
YLW
YLW
YLW
V (BLU)
W (YLW)
COMPRESSOR
MS
3
CN–TANK
(WHT)
CN–TH
(WHT)
TO INDOOR UNIT
~
~
WHT
GR
O
U
N
D
IN
G
T
ER
M
IN
A
L
YLW/GRN
ELECTRO-MAGNETIC
COIL
(4-WAYS VALVE)
CN–HOT
(WHT)
1
2
3
4
C6
1
R11
15.8k
5V
C7
1
R12
15.0k
R1
4.99k
1
3
5V
C3
1
R199
*D9
*Q14
e
c
b
1
3
15V
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
36 
9.2.2 
CU-UE18RKD 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
R
esi
st
an
ce
 (
kΩ
)
20
30
40
50
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40
60
Temperature (
o
C)
R
esi
st
an
ce
 (
kΩ
)
80
100
120
140
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
(WHT)
CN-MTR2
(WHT)
IC19
Q1
FG1
(GRN)
FG2
(GRN)
GRN
BL
K
WH
T
GRN
AC-BLK
(BLK)
DATA
(RED)
RED
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE101
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
5
1
10
14
16
1
CN-TANK
5V
G2
R1
4.99k
1%
C5
1µ
10V
G2
COMP. TEMP.
SENSOR (50kΩ 3950)
1
3
t
0
P
N
FUSE103
(20A 250V)
3
2
1
PFC
CIRCUIT
W
U
V
FAN MOTOR
ELECTRONIC
CONTROLLER
MS
3 ~
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
EXPANSION
VALVE
1
2
3
4
5
6
M
MS
3 ~
FUSE104
T3.15A L250V
402
403
404
5
4
3
2
1
*C178
*C186
0.01µ
50V
*C188
0.01µ
50V
*C187
0.01µ
50V
*CN-HOT
*CN-STM
*R313
1k
*R312
1k
*R311
1k
5V
G2
G2
G2
G2
+
SWITCHING
POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
CN-TH1
(WHT)
OUTDOOR AIR TEMP.
SENSOR (15kΩ 3950)
1
4
3
2
t
0
t
0
5V
G2
R12
15.0k
1%
R11
15.8k
1%
42
0
41
9
C10
1µ
10V
C88
220µ
10V
G2
C9
1µ
10V
G2
+
4-WAYS VALVE
1
3
828
829
*D20
*Q23
*R260
e
b
15V
G2
179
180
c
236
*C174
63
64
30
31
835
836
837
838
20
52
29
G2
13V
13V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC4
GND
VCC
G2
13V
1
2
3
4
5
6
16
9
15
14
13
12
11
VCC
G2
*D76
*D74
*D75
*D73
891
*IC5
PIPING TEMP.
SENSOR1 (4.96kΩ 3800)
 
 
 
 
 
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