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10.2.2
CU-Z50TKEA CU-Z71TKEA
TO INDOOR UNIT
1
2
3
RED
DATA
(RED)
AC-BLK
(BLK)
FUSE 1
(25A 250V)
AC-WHT
(WHT)
GRN
FG1
(GRN)
GRN
FG2
(GRN)
CN-MTR2
(WHT)
1
W
MS
3
FAN
MOTOR
3~
5
CN-MTR1
(RED)
1
5V
3
C401
G5
70
60
50
40
30
20
10
0
TERMINAL
BOARD
GRY
RAT2
(GRY)
NOISE FILTER
CIRCUIT
(20A 250V)
FUSE 6
FUSE 8
(20A 250V)
(T3.15A,
L250V)
PFC
RECTIFICATION
CIRCUIT
CIRCUIT
10
U
14
V
16
IC19
R403
1k
C414
0.01u
0.1u
ELECTRONIC CONTROLLER
50V
25V
B1
B1
G6
Sensor (Thermistor)
Characteristics
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
-10
0
10
20
30
40
50
o
Temperature (
C)
REACTOR
GRY
RAT1
(GRY)
COMMUNICATION
15.8k
CIRCUIT
FUSE 5
RECTIFICATION
CIRCUIT
SWITCHING
POWER
SUPPLY CIRCUIT
C99
R28
1u
4.99k
10V
1%
B1
G5
FUSE 3
T3.15A L250V
C921
0.1u
50V
Q1
U (RED)
P
U
V (BLU)
V
W (YLW)
N
W
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40
60
Temperature (
33
5V
R21
R22
15k
C98
1%
1%
470u
10V
C9
C10
KY
1u
1u
10V
10V
B1
B1
OUTDOOR AIR TEMP. SENSOR
G5
CN-TH1
G5
(THERMISTOR)
(WHT)
1
t˚
t˚
4
PIPING TEMP. SENSOR
G5
5V
(THERMISTOR)
CN-TANK
(WHT)
1
t˚
3
COMPRESSOR TEMP. SENSOR
(THERMISTOR)
CN-STM1
IC8
4
15
(WHT)
1
3
16
2
17
1
18
15V
6
CN-HOT
10
1
YLW
COMMON
(WHT)
IC8
GND
9
B3
D57
3
YLW
D59
NONE
G4A
G4A
RED
BLU
YLW
80
100 120
140
o
C)
ELECTRO-MAGNETIC COIL
M
(EXPANSION VALVE)
ELECTRO-MAGNETIC COIL
(4-WAY VALVE)
MS
3~
COMPRESSOR
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