50
9.3 CU-2WZ71YBE5
TO DUCT UNIT C
1
2
3
TO TANK UNIT A
1
BL
TERMINAL BOARD
CONTROL BOARD
BL
W
R
B
W
2
3
G
G
ELECTRONIC CONTROLLER
(NOISE FILTER)
AC-WHT
GRY
REACTOR
(WHITE)
AC-BLK
(BLACK)
R
B
Y
R
B
Y
U
V
W
P
N
(RED) U
(BLUE) V
(YELLOW) W
CONNECTOR
WHITE
COMPRESSOR
Q10
9
7
5
3
1
BL
GRY
BR
B
W
CN-BLK
RAT2 (GRAY)
AC1 (BROWN)
AC2 (BLUE)
(BLACK)
CN-WHT (WHITE)
CN-COM
(WHITE)
ACN1 (WHITE)
ACL1
(BLACK)
FG1
(GREEN)
FG2
(GREEN)
DCP
(RED)
DCN
(BLACK)
DCP (RED)
RAT1
(GRAY)
AC1 (BROWN)
DCN
RB
L
(BLACK)
FUSE 401 (30A 250V)
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
FUSE 2
(T3.15A L250V)
ELECTRONIC CONTROLLER
(MAIN)
FUSE 1 (T3.15A L250V)
MS 3~
M
FAN MOTOR
7
4
1
R
B
BR
W
ORG
RECTIFICATION
CIRCUIT
SMOOTHING CAPACITOR
PFC
CIRCUIT
SWITCHING
POWER SUPPLY
CIRCUIT
1
3
1
3
CN-HOT1
(BLUE)
ELECTRO MAGNETIC COIL 1 (4-WAY VALVE)
CRANKCASE HEATER
CN-HT (BLACK)
RY-HOT
RY-HT
RY-PWR
PFC
CAPACITOR
RECTIFICATION
CIRCUIT
AC2 (BLUE)
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (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)
Resistance (kΩ)
80
100
120
140
CN-TH5
Black
DISCHARGE TEMP. SENSOR (THERMISTOR)
1
4
5V
t
1
CN-TANK
Natural
2
C209
1u 10V
G5
G5
R102 4.99k 1%
5V
C47 1u 10V
G5
t
CN-TH1 Natural
OUTDOOR TEMP. SENSOR (THERMISTOR)
HEAT EXCHANGER TEMP. SENSOR (THERMISTOR)
1
4
C46 1u 10V
5V
C45 1u 10V
G5
R100 15k 1%
R101 7.5k 1%
t
t
G5
G5
9
1
1
W
W
W
W
W
W
W
W
W
1
4
CN-HOT2 (WHITE)
ELECTRO MAGNETIC COIL 2 (4-WAY VALVE)
RY-HOT2
G1
CN-STM3
Blue
CN-STM2
Yellow
CN-STM1
Natural
61
M
61
M
81
UNIT A
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
ELECTRO-
MAGNETIC COIL (B) (EXPANSION VALVE)
UNIT C
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
M
23
24
25
26
27
28
29
30
9
10
7
8
D66
D65
A
K
D61
A
K
D57
A
K
A
K
D62
A
K
D58
A
K
A
K
D63
A
K
D59
A
K
A
K
D64
A
K
D60
A
K
D68
D67
11
12
G6
G6
G6
5V
G6
G6
1
1
5
1
3
6
1
6
CN101 YELLOW
CN-NMODE1
white
CN-DISP1
CN-DISP2
CN-DISP3
yellow
ELECTRONIC CONTROLLER (DISPLAY)
OPERATION TEST SW
PUMP DOWN SW
EVQ PAE 07K
EVQ PAE 07K
EVQ PAE 07K
WIRING CHECK SW
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
R370 10k
R376 1k
R371 10k
R372 10k
R373 10k
R374 10k
R375 10k
CN-DISP1
Natural
1
7
1
14
5V
5V
5V
R304 1.2k
R305 1.2k
R306 1.2k
R307 1.2k
R308 1.2k
R309 1.2k
SW1
1
2
3
4
1
2
3
4
SW4
ON
OFF
1
2
32
1
3
4
SW5
Green LED1
*JP1
ON
OFF
3
AK
AK
AK
AK
AK
AK
21
Green LED2
Green LED3
Green LED4
Green LED5
Green LED6
SW2
SW3
PRIORITY MODE SW
POWER SAVE SW
COOL ONLY
C270 0.1u 25V
C269 0.1u 25V
C268 0.1u 25V
C271 0.1u 25V
C272 0.1u 25V
C273 0.1u 25V
R378 1k
R379 1k
R377 1k
R380 1k
R381 1k
Q36
-50V
-100mA
C
E
4.7K
10K
B
G6
CN-PSW1
R
R
HIGH PRESSURE SW.
1
2
13V
RY-PWR
Q33 -32V
-500mA
Q35 50V
100mA
Q34 -50V
-100mA
A
K
E
C
C
C
C
E
E
4.7k
4.7k
4.7K
10K
10K
10K
E
B
B
B
B
D78 1A5 600V 1A
G4
G6
G6
G6
G6
R132 4.7k
R140 10k
R138 10k
R139 10k
R271 2.2k
Q24
50V
100mA
C65 0.01u 50V
5V
C227 0.047u 25V
R331
R329 8.45k 1%
C229 10u 50V
R332 200k 1%
R330 6.81k 1%
C228 1000p 50V
C231 0.01u 50V
G2
G6
+
R327
2k
R161 39k
R328
2k
R86 1k
16V
5V
5V
Q32
Q30
Q31
-50V
-100mA
-50V
-100mA
50V
100mA
E
E
B
B
10K
10K
10K
4.7K
4.7K
4.7k
C
C
C
B
E
CN-FM1
Natural
CN-TH2 Yellow
DEFROST TEMP. SENSOR (THERMISTOR)
1
4
R103 7.5k 1%
5V
G5
t
C48 1u 10V
G5
C120
1u 10V
G5
C115
1u 10V
G5
R133 4.99k 1%
G5
G6
G6
5V
3
31
1
3
1
CN-HEAT (WHITE)
WW
W
*C282
*C283
*CN-102
yellow
*R390
*R391
G6
C130 0.1u 25V
CN-HPS
Red
R107 20k 1/10W
1%
R400
1k
5V
HIGH PRESSURE
SENSOR
TANK TEMP.
SENSOR (THERMISTOR)
43
1
31
2
RW
B
L
C122
1u 16V
C121 100u 16V
G5
+
5
1
4
CN-DATA1
yellow
CN-DATA2
yellow
5V
13V
G4A
R388 47k
C276 1000p 50V
R253 10k
G6
G6
G6
CN-DATA
Natural
IC17
15
16
14
13
12
11
10
9
1
VDD
2X
1X
X-COM
0X
3X
A
B
0Y
2Y
Y-COM
3Y
1Y
INH
VEE
VSS
2
3
4
5
6
7
8
IC18
VDD
2X
1X
X-COM
0X
3X
A
B
0Y
2Y
Y-COM
3Y
1Y
INH
VEE
VSS
15
16
14
13
12
11
10
9
1
2
3
4
5
6
7
8
1
16
2
15
3
14
4
13
5
12
6
11
7
10
5V
13V
5V
G1
C214 1000p 50V
C215 1000p 50V
C213 1000p 50V
C212
1u 16V
C216 1000p 50V
G1
G1
G1
G1
G1
G1
G1
C217 1000p 50V
G1
IC16
13V
CN-TH4 Natural
t
t
GAS PIPE TEMP. SENSOR (UNIT A) (THERMISTOR)
GAS PIPE TEMP. SENSOR (UNIT C) (THERMISTOR)
1
11
C239
1u 10V
C240
1u 10V
5V
CN-TH3 Natural
t
t
LIQUID PIPE TEMP. SENSOR (UNIT A) (THERMISTOR)
LIQUID PIPE TEMP. SENSOR (UNIT C) (THERMISTOR)
1
10
G5
G5
G5
R333 15.8k 1%
R338 15.8k 1%
C232
1u 10V
C241
1u 10V
5V
R341 15.8k 1%
R342 15.8k 1%
*R135
*R337