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Model
CS-HE7QKD CS-HE9QKD CS-HE12QKD CS-HE18QKD CU-HE7QKD CU-HE9QKD CU-HE12QKD CU-HE18QKD
Pages
127
Size
28.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-he7qkd-cs-he9qkd-cs-he12qkd-cs-he18qkd-cu-he7qk.pdf
Date
PREV: Panasonic CU-4E27PBD / CU-5E34PBD Service Manual

Panasonic CS-HE7QKD / CS-HE9QKD / CS-HE12QKD / CS-HE18QKD / CU-HE7QKD / CU-HE9QKD / CU-HE12QKD / CU-HE18QKD Service Manual ▷ View online

33 
9.2 Outdoor 
Unit 
9.2.1 CU-HE7QKD 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
R
es
ista
nce
 (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
ista
nce
 (k
Ω
)
80
100
120
140
402
403
404
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
CN-MTR2
(WHT)
IC19
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
4
3
2
1
10
14
16
1
P
N
SWITCHING
POWER
SUPPLY
CIRCUIT
FUSE103
(20A 250V)
3
2
1
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
W
U
V
ELECTRONIC
CONTROLLER
MS
3 ~
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
*C178
5V
4-WAYS VALVE
1
3
D20
G2
CN-HOT
179 828
829
180
R311
1k
C187
0.01µ
50V
G2
R312
1k
C188
0.01µ
50V
G2
R313
1k
C186
0.01µ
50V
G2
G2
+
Q1
FAN MOTOR
MS
3 ~
TANK TEMP.
SENSOR (50kΩ 3950)
1
3
CN-TANK
WHITE
5V
G2
R1
4.99k
1%
C5
1µ
10V
G2
CN-TH1
WHITE
OUTDOOR TEMP.
SENSOR (15kΩ 3950)
PIPE TEMP.
SENSOR1 (4.96kΩ 3800)
5V
1
2
3
4
G2
R12
15.0k
1%
R11
15.8k
1%
420
419
C10
1µ
10V
G2
C9
1µ
10V
G2
FUSE104
T3.15A L250V
RECTIFICATION
CIRCUIT
M
CN-STM
63
64
30
31
835
836
837
838
6
5
4
3
2
1
D74
D75
D76
C174
0.1µ
25V
G2
13V
EXPANSION
VALVE
D73
13V
1
2
3
4
5
16
9
15
14
13
12
IC4
VCC
G2
13V
1
2
3
4
16
16
10
14
12
16
10
14
12
9
15
14
13
IC5
CN1
CN1
VCC
5
12
6
7
11
10
G2
169
171
170
168
 
 
 
34 
9.2.2 
CU-HE9QKD  CU-HE12QKD 
 
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
R
es
ista
nce
 (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
ista
nce
 (k
Ω
)
80
100
120
140
126
15
6
15
5
134
144
443
263
264
269
444
445
447
459
556
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
CN-MTR2
(WHT)
IC19
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
(RED)
FUSE103
T3.15A L250V
(BLU)
(YLW)
U
V
W
3
5
5
4
3
2
1
10
14
16
1
P
N
SWITCHING
POWER
SUPPLY CIRCUIT
FUSE102
T3.15A L250V
FUSE101
(20A 250V)
3
(RED)
2
(WHITE)
S1
(BLACK)
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
W
U
V
ELECTRONIC
CONTROLLER
MS
3 ~
FUSE104
(15A 250V)
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
M
TANK TEMP.
SENSOR (50kΩ 3950)
1
3
C
N
-T
AN
K W
H
IT
E
5V
G8
R1
4.99k
1%
G8
C3
1µ
10V
CN
-T
H W
H
IT
E
OUTDOOR TEMP.
SENSOR (15kΩ 3950)
PIPE TEMP.
SENSOR1 (4.96kΩ 3800)
5V
4
3
2
1
G8
G8
G8
R12
15.0k
1%
R11
15.8k
1%
C7
1µ
10V
C6
1µ
10V
27
7
541
e
b
Q14
*C173
15V
5V
4-WAYS VALVE
1
3
D9
G2
CN
-H
O
T
295
296
c
CN-STM
153
154
145
146
6
5
4
3
2
1
D60
D61
D62
D63
C190
0.1µ
25V
G2
13V
13V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC12
GND
VCC
G2
13V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC19
GND
VCC
G2
EXPANSION
VALVE
R156
1k
C176
0.01µ
50V
G5
R166
1k
C177
0.01µ
50V
G5
R167
1k
C175
0.01µ
50V
G5
G5
+
Q1
FAN MOTOR
MS
 
 
 
 
 
 
35 
9.2.3 CU-HE18QKD 
 
TO INDOOR UNIT
AC-WHT
(WHITE)
CN-DCFM
(WHITE)
LJP117
(GREEN)
FG01
(GREEN)
GRN
YLW/GRN
CONTROL
BOARD
CONTROL
BOARD
CONTROL
BOARD
CABINET
SIDE
PLATE
BLK
WH
T
GRN
AC-BLK
(BLACK)
COM3
(RED)
RED
GRY
L2-I
(GRAY)
GRY
L2-O
(GRAY)
REACTOR
BLU
ELECTRO-MAGNETIC COIL
(4-WAYS VALVE)
1
3
CN-HOT
(BLUE)
FUSE2
(T3.15A L250V)
Q10
FUSE1
(T2.5A L250V)
FUSE3
(20A 250V)
3
(RED)
2
(WHT)
FAN MOTOR
ELECTRONIC CONTROLLER
7
1
M
COMMUNICATION
CIRCUIT
NOISE FILTER
CIRCUIT
TERMINAL
BOARD
RECTIFICATION
CIRCUIT
SWITCHING
POWER SUPPLY
CIRCUIT
RED
BLK
WHT
BLU
YLW
(RED)
(BLU)
(YLW)
U
V
W
P
N
RECTIFICATION
CIRCUIT
PFC
CIRCUIT
RY
-H
O
T
S1
(BLK)
COMPRESSOR
RED
BLU
YLW
RED
BLU
YLW
MS
3 ~
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Res
is
tanc
e (
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)
Res
is
tanc
e (
kΩ
)
80
100
120
140
COMP. TEMP. SENSOR
(THERMISTOR)
(50kΩ 3950)
1
3
CN
-T
A
N
K
5V
R410
4.99k
C49
1µ
10V
102
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
1 2 3 4 5 6
8
7
6
5
*D33
*D34
*D35
*D36
*C84
*CN-EV
13V
M
5V
R100
15.0k
1%
R101
15.8k
1%
C45
1µ
6.3V
C46
1µ
6.3V
90
98
97
99
CN
-T
H
1
OUTDOOR AIR TEMP.
SENSOR
(THERMISTOR)
(15kΩ 3950)
PIPING TEMP. SENSOR
(THERMISTOR)
(4.96kΩ 3800)
1
2
3
4
 
 
 
 
 
 
 
 
 
 
 
 
 
36 
10.  Printed Circuit Board 
10.1 Indoor Unit 
10.1.1  Main Printed Circuit Board 
 
AC303
G301
CN-STM1
CN-STM3
CN-RMT
CN-MSENS
CN-STM2
CN-STM4
CN-RCV
AC304
CN-DISP
CN-CLN
CN-CNT
CN-TH
CN-FM
JP1 (Random Auto Restart enable or disable)
 
 
10.1.2 Indicator 
Printed Circuit Board 
 
 
 
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