DOWNLOAD Panasonic CS-BE20TKD / CU-BE20TKD Service Manual ↓ Size: 23.45 MB | Pages: 92 in PDF or view online for FREE

Model
CS-BE20TKD CU-BE20TKD
Pages
92
Size
23.45 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-be20tkd-cu-be20tkd.pdf
Date
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Panasonic CS-BE20TKD / CU-BE20TKD Service Manual ▷ View online

13 
7. Block Diagram 
 
 
 
 
1
F
U
SE1
01
F
U
SE1
04
RE
A
C
T
O
R
F
U
SE1
02
RY
-P
WR
PT
C
1
PT
C
NT
C
TH
3
CT
1
0
2
4-
W
A
YS
VA
LV
E
RY
-A
C
F
U
SE10
3
IC
19
MS
3 ~
MS
3 ~
RY
-P
WR
RY
-P
WR
2
F
U
SE3
01
TE
M
P
.
FU
S
E
SC
L
U
M
(I
NDOO
R
 UNIT
)
(OUT
D
O
O
R 
UNI
T
)
SC
2
3
N
SI
N
G
L
E
PH
ASE
PO
W
E
R
SU
PP
L
Y
NOIS
E F
IL
TE
R
U
TE
M
P
.
FU
S
E
14 
8. Wiring Connection Diagram 
8.1 Indoor 
Unit 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FAN MOTOR
CN-FM (WHT)
Y
7
4
1
B
W
BL
R
M
FUSE301
T3.15A L250V
RY-PWR
RY-PWR2
Y/G
Y/G
TEMP.
FUSE
102°C (4.5A)
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
SINGLE PHASE
POWER SUPPLY
1ø 220-230V 50Hz
ELECTRONIC CONTROLLER
(MAIN)
UP DOWN
LOUVER MOTOR
CN-STM1
(WHT)
BR
1
5
1
5
R
O
M
Y
P
CN-CNT
(WHT)
5
1
REMARKS
B : BLUE 
P: PINK
BR: BROWN 
O: ORANGE
BL: BLACK 
Y: YELLOW
W: WHITE 
G: GREEN
R: RED 
Y/G: YELLOW/GREEN
CN-DISP 1
(YLW)
CN-DISP
(WHT)
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
1
5
1
5
W
W
W
W
W
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
PIPING TEMP. SENSOR
(THERMISTOR)
SUCTION TEMP. SENSOR
(THERMISTOR)
4
1
CN-TH
(RED)
t°
t°
CN-RMT
(WHT)
4
1
REMOTE
CONTROLLER
SW01
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
15 
8.2 Outdoor 
Unit 
 
 
 
Resistance of Compressor Windings 
 
 
MODEL CU-BE20TKD 
 
 
 
CONNECTION 5SS072XGA21    
 
U-V 3.034 
Ω 
 
 
 
U-W 3.021 
Ω 
 
 
 
V-W 3.009 
Ω 
 
 
 
Note: Resistance at 20°C of ambient temperature. 
 
 
 
 
 
 
 
 
 
 
 
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
OUTDOOR AIR TEMP.
SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
1
4
t°
t°
AC-WHT
(WHT)
CN-MTR1
(WHT)
CN-MTR2
(WHT)
IC19
Q1
FG1
(GRN)
FG2
(GRN)
GRN
BLK
WHT
GRN
AC-BLK
(BLK)
DATA
(RED)
RED
GRY
RAT2
(GRY)
GRY
YLW
YLW
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE103
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
3
1
10
14
16
1
COMP. TEMPERATURE
SENSOR (THERMISTOR)
1
3
CN-TANK
(WHT)
t°
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL (EXPANSION VALVE)
1
3
CN-HOT
(WHT)
CN-TH
(WHT)
1
6
CN-STM
(WHT)
P
N
SWITCHING
POWER
SUPPLY CIRCUIT
FUSE102
T3.15A L250V
FUSE101
(20A 250V)
3
2
1
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
W
U
V
FAN MOTOR
ELECTRONIC CONTROLLER
MS
3 ~
FUSE104
(15A 250V)
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
RED (RED)
(TRADEMARK)
BLUE (BLU)
THE PARENTHESIZED LETTERS IS
INDICATED ON TERMINAL COVER.
YELLOW (YLW)
COMPRESSOR TERMINAL
REMARKS
BLACK: (BLK) 
RED: (RED)
WHITE: (WHT) 
BROWN: (BRW)
YELLOW: (YLW)  GREEN: (GRN)
ORANGE: (ORG)  GRAY: (GRY)
BLUE: (BLU) 
YELLOW/GREEN: (YLW/GRN)
MS
3 ~
M
16 
9. Electronic Circuit Diagram 
9.1 Indoor 
Unit 
 
 
 
 
70
60
50
R
esi
st
an
ce
 (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
C49
NONE
C45
0.1μ
16V
B1
R37
10k
R54
270
5V
C48
NONE
C47
NONE
5V
R85
5.1k
CN-DISP
YELLOW
2
3
4
5
5
4
3
2
1
R89
NONE
CN-RMT
1
5V
C3
0.1μ
16V
B1
ELECTRONIC CONTROLLER
(MAIN)
SW01
4
FAN MOTOR
CN-FM (WHT)
Y
7
4
1
B
W
BL
R
M
FUSE301
T3.15A L250V
RY-PWR
RY-PWR2
Y/G
Y/G
TEMP.
FUSE
102°C (4.5A)
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
SINGLE PHASE
POWER SUPPLY
1ø 220-230V 50Hz
COMMUNICATION
CIRCUIT
TO
OUTDOOR
UNIT
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
C25
1μ
16V
B3
R62
15k
1%
C27
1μ
16V
B3
R61
20k
1%
SUCTION
TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
PIPING
TEMP. SENSOR
(THERMISTOR)
(20k, 3950)
4
3
2
1
t°
5V
CN-TH
RED
1
2
3
4
5
CN-CNT
WHITE
t°
REMOTE CONTROLLER
UP DOWN
LOUVER MOTOR
CN-STM1
WHITE
1
5
4
3
2
12V
1
2
3
4
16
IC03
15
14
13
5
12
6
11
7
10
BR
1
5
R
O
M
Y
P
ON
OFF
SET
TIMER
CANCEL
AIR SWING
TEMP
MODE
SLEEP
FAN SPEED
OFF/ON
OFF/ON
R47
68
1/2W
R46
68
1/2W
12V
9
8
COM
E
1/10W
1/10W
4
5
CN-DISP 
PH5
WHITE
ELECTRONIC CONTROLLER
(DISPLAY & RECEIVER)
RECEIVER
C201
C202
R203
IC201
R204
R201
R202
5%
5%
LED202
(orange)
(green)
LED201
1
Vout
Vcc
GND
GND
GND
2
3
PCB
A713533
P.C.B
5V
IC03
IC03
IC03
IC03
IC03
IC03
IC03
5V
5V
12V
R90
10K
R82
10K
L6
B-06-RTF-50
L5
B-06-RTF-50
C57
0.1μ
16V
B1
C56
0.1μ
16V
B1
C51
1000p
B1
C52
1000p
B1
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