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41
10.2.3 CU-Z42TKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (kΩ)
20
30
40
50
Outdoor Air Sensor
Outdoor Heat Exchanger
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
tº
tº
tº
M
MS
3~
MS
3~
TO INDOOR UNIT
TERMINAL
BOARD
RED
DATA
(RED)
BLK
WHT
AC-BLK
(BLK)
FUSE101
FUSE101
(20A 250V)
AC-WHT
(WHT)
GRN
GRN
(GRN)
(GRN)
FG 1
FG 2
FAN
MOTOR
1
1
3
5
5
CN-MTR2
(WHT)
CN-MTR1
(WHT)
ELECTRONIC CONTROLLER
10
14
14
W
U
V
16
IC20
FUSE104
(15A 250V)
FUSE102
T3.15A L250V
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
COMMUNICATION
CIRCUIT
REACTOR
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
SWITCHING POWER
SUPPLY CIRCUIT
FUSE103
T3.15A L250V
CN-TH
(WHT) 1
1
3
1
1
3
6
4
CN-TANK
(WHT)
CN-HOT
(WHT)
CN-STM
(WHT)
U (RED)
V (BLU)
W (YLW)
YLW
RED
BLU
BLU
COMPRESSOR
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
ELECTRO-MAGNETIC
COIL
(4-WAYS VALVE)
COMP. TEMPERATURE
SENSOR (THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
NOISE FILTER
CIRCUIT
S1
2
3
P
N
Q1
U
V
W
YLW
YLW
C176
0.01u
0.01u
KB
50V
C175
0.01u
0.01u
KB
50V
C177
0.01u
0.01u
KB
50V
R167
1k
C173
NONE
R166
1k
R156
1k
G5
G5
G5
G5
5V
4V
D11
Q15
e
c
b
R18
10k
D9
G2
G2
C190
0.1u
KB
25V
13V
D60
D62
D61
D63
G2
GND
8
3
4
5
6
7
6
7
2
1
3
4
5
6
7
6
7
2
1
VCC
VCC
13V
13V
16
9
15
14
13
14
13
12
11
10
11
10
IC12
IC12
IC12
IC12
IC12
IC12
IC12
16
9
15
14
14
13
12
11
10
12
11
10
IC19
IC19
IC19
IC19
IC19
IC19
IC19
G2
GND
8
5V
C3
1u
KB
10V
G8
R1
4.99k
1%
G8
G8
C7
1u
KB
10V
C6
1u
KB
10V
R12
15.0k
1%
R11
15.8k
1%
G8
G8
5V
42
11. Printed Circuit Board
11.1 Indoor Unit
11.1.1 Main Printed Circuit Board
AC303
CN-STM1
CN-STM3
CN-STM2
CN-RCV
CN-DISP
CN-DATA2
CN-RMT
CN-TH
JP1 (Random Auto Restart enable/disable)
CN-MSENS
CN-CNT
CN-DATA1
CN-FM
43
11.1.2 Indicator
Printed Circuit Board
LED201
LED203
LED206
LED204
LED202
LED205
CN-DISP
11.1.3 Receiver Printed Circuit Board
CN-RCV
11.1.4 High Voltage Power Supply Printed Circuit Board
CN2
44
11.1.5 Sub Printed Circuit Board
CN-NANO
CN-DATA2
ACN502
ACN501
ACL501
AC306
AC302
CN-DATA1
11.1.6 Human Activity Sensor Printed Circuit Board
11.1.7 Comparator Printed Circuit Board
CN-SENS2
CN-SENS1
CN-MSENS
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