Panasonic CU-4E24RBU - Cu-4 E24 Rbu

24
7.2 CU-4E24RBU
CON
T
RO
L
BOARD
Y/G
BLK
BLK
1 2 3
W
W
BLK
R
1
CN-COM (WHITE)
FUSE 401
(30A 250V)
ACL1 (BLACK)
ACN1 (WHITE)
FG1
(GREEN)
FG2
(GREEN)
DCP (
RED
)
DCN (
BLACK
)
CN-BLK (BLACK)
REACTOR
GRY
RY-PWR
SMOOTHING CAPACITOR
PFC
CAPACITOR
RECTIFICATION
CIRCUIT
SWITCHING
POWER SUPPLY
CIRCUIT
ELECTRONIC CONTROLLER (MAIN)
ELECTRONIC CONTROLLER (NOISE FILTER)
ELECTRONIC CONTROLLER (DISPLAY)
PFC
CIRCUIT
AC-WHT (
WHITE
)
RAT1 (
GRAY
)
DCP (
RED
)
DCN (
BLACK
)
AC1 (
BROWN
)
Q10
(
RED
)
U
(
YELLOW
)
(
BLUE
)
V
P N
U V
W
W
BR
W
R
R
R
R
1
11
3
3
1
1
1
10
11
1
1
4
4
2
4
7
CN-FM1
(WHITE)
CN-PSW1
(BLUE)
CN-TH3
(WHITE)
CN-TH4
(WHITE) (WHITE)
CN-TH1
(YELLOW)
CN-TH2
t t t t
t t t
t t t
t
t
FAN MOTOR
HIGH PRESSURE SW.
LIQUID PIPE TEMP. SENSOR (UNIT A) (THERMISTOR) LIQUID PIPE TEMP. SENSOR (UNIT B) (THERMISTOR) LIQUID PIPE TEMP. SENSOR (UNIT C) (THERMISTOR) LIQUID PIPE TEMP. SENSOR (UNIT D) (THERMISTOR) (5k, 3900)
GAS PIPE TEMP. SENSOR (UNIT A) (THERMISTOR) GAS PIPE TEMP. SENSOR (UNIT B) (THERMISTOR) GAS PIPE TEMP. SENSOR (UNIT C) (THERMISTOR) GAS PIPE TEMP. SENSOR (UNIT D) (THERMISTOR) (5k, 3900)
OUTDOOR TEMP. SENSOR (THERMISTOR) (15k, 3950)
HEAT EXCHANGER TEMP. SENSOR (THERMISTOR) (5k, 3900)
DEFROST TEMP. SENSOR (THERMISTOR) (5k, 3900)
M
B
B Y
ORG
R
CONNECTOR WHITE
COMPRESSOR
MS
3~
B Y
RBLK
AC-BLK (
BLACK
)
AC2 (
BLUE
)
FUSE 2
(T3.15A L250V)
FUSE 1 (T3.15A L250V)
CN-DATA
(
WHITE
)
CN-DATA
(
WHITE
)
RAT2 (GRAY)
AC1 (BROWN)
AC2 (BLUE)
CN-WHT
(
WHITE
)
W
BLK
GRY
BR B
1
W W W W W W W W W
1
99
NOISE FILTER CIRCUIT
COMMUNICATION CIRCUIT
RECTIFICATION CIRCUIT
G
G
CONTROL BOARD
3 5 7 9
1
W W W W W W W W
W W W W W W W W W W W W W
1 1 6
1
1
7
1
1
3 3
1
1
8
6
7
CN-DISP1
(WHITE)
CN-DISP1
(WHITE)
CN-DISP2
(WHITE)
CN-NMODE
(YELLOW)
CN-NMODE1
(WHITE)
CN-HOT
(BLUE)
(WHITE)
CN-EV1
(YELLOW)
CN-EV2
1
6
(BLUE)
CN-EV3
1
7
(RED)
CN-EV4
12
MMMM
(WHITE)
CN-DIS
DISCHARGE TEMP.
S
ENSOR (THERMISTOR) (50k, 3950)
UNIT D
ELECTRO-
MAGNETIC COIL
(EXPANSION
VALVE)
UNIT C
ELECTRO-
MAGNETIC COIL
(EXPANSION
VALVE)
UNIT B
ELECTRO -
MAGNETIC COIL
(EXPANSION
VALVE)
UNIT A
ELECTRO-
MAGNETIC COIL
(EXPANSION
VALVE)
ELECTRO MAGNETIC
COIL (4-WAY VALVE)
HEATER
CN-HT (BLACK)
RY -HOT
RY -HT
14
8
B Y
ORG
W
L1
L2
TERMINAL BOARD
TERMINAL BOARD
TO INDOOR UNIT A
1 2 3
BLK W
TO INDOOR UNIT B
1 2 3
BLK W
TO INDOOR UNIT C
1 2 3
TO INDOOR UNIT D
SINGLE PHASE POWER SUPPLY AC 208/230V 60Hz
5V
5V
5V
R463 D403
ZD403
ZD401
R402
R401
PC401 PC402
R410 R411
R408 R409
R412
Q401
b
c
e
R413
4 3
1 2
ZD402
D401
R406 R407
D402
C414
R405
R403
1 2
4 3
R404 C413
ZD404
R414
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
ZD407
R424
R420
PC404
PC403
R419
R426
R423 R421
R425
Q402
b
c
e
R415
4 3
1 2
ZD406
R416 R417
D404
C415
R422
R418
1 2
4 3
ZD408
R438
R435
PC405
PC406
R427 R437
R429 R430
R428
Q403
b
c
e
R431
4 3
1 2
ZD409
R433 R434
D405
C416
R436
R432
1 2
4 3
ZD410
R439
R440
PC408
PC407
R449 R443
R444 R442
R447
Q404
b
c
e
R446
4 3
1 2
ZD411
R445 R450
D406
C417
R441
R448
1 2
4 3
ZD412
R452
R455
PC410
PC409
R454 R457
R460 R451
R462
Q405
b
c
e
R459
4 3
1 2
ZD413
R453 R456
D407
C418
R461
R458
1 2
4 3
5V
13V
5V
13V
b
c
e
10k
10k
Q32
Q30
Q31
10k
4.7k
4.7k
4.7k
b
c
e
15V_2
b
c e
5V
5V
R327
C230C227C229R330
R326
R328C231
R86
C228
R332
R331R329
13V
5V
R138
10k
10k
4.7k
4.7k
C65 R140
R139
R132
R271
Q24
D78
RY-PWR
e
c
b
b
c
e
Q34
b
e
c
5V
R333 R338 R334 R335 R337
C232 C241 C233 C234 C236
5V
R341 R342 R336 R339 R340
C239 C240 C235 C237 C238
5V
R100
C45
R101
C46
5V
R103
C48
13V
R365
b
D33
C62
D60
D59
D58
D57
c
e
Q25
R366
R368
C218 D34 C219 D35
C220 D36
D61
D65
D69
D70
D71
D72
D66
D67
D68
D62
D63
D64
13V
b
c
e
b
c
e
b
c
e
Q27Q29Q26
R367
5V
C47
R102 C209
5V
5V
5V
5V
5V
PUMP DOWN
SW1
1 2
3 4
OPERATION TEST
SW2
1 2
3 4
WIRING CHECK
SW3
SW4 POWER SAVE
ON OFF
1 2
321
3 4
SW5 PRIORITY MODE
COOL ONLY
GREEN LED1
R304
JP1
ON OFF
321
R305 R306 R307 R308 R309
GREEN LED2 GREEN LED3 GREEN LED4 GREEN LED5 GREEN LED6
10 20 30 40 50 60 70
Temperature °C (°F)
Resistance (K)
Compressor Temp. Sensor
(Thermistor) Charateristics
0
10 20 30 40 50 60 70
Temperature °C (°F)
Resistance (K)
Sensor (Thermistor)
Characteristics




Outdoor Air Sensor Outdoor Heat Exchanger Sensor
-10
(40)
0
(32)
10
(50)
20
(68)
30
(86)
40
(104)
50
(122)
20
(68)
40
(104)
60
(140)
80
(176)
100
(212)
120
(248)
140
(284)