28
9.2.2 CU-BE50TKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (k
Ω
)
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 (k
Ω)
80
100
120
140
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
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
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE101
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
5
1
10
14
16
1
CN-TANK
5V
G2
R1
4.99k
1%
C5
1μ
10V
G2
COMP. TEMP.
SENSOR (50kΩ 3950)
1
3
t
0
P
N
FUSE103
(20A 250V)
3
2
1
PFC
CIRCUIT
W
U
V
FAN MOTOR
ELECTRONIC
CONTROLLER
MS
3 ~
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
EXPANSION
VALVE
1
2
3
4
5
6
M
MS
3 ~
FUSE104
T3.15A L250V
402
403
404
5
4
3
2
1
*C178
*C186
0.01μ
50V
*C188
0.01μ
50V
*C187
0.01μ
50V
*CN-HOT
*CN-STM
*R313
1k
*R312
1k
*R311
1k
5V
G2
G2
G2
G2
+
SWITCHING
POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
CN-TH1
(WHT)
OUTDOOR AIR TEMP.
SENSOR (15kΩ 3950)
1
4
3
2
t
0
t
0
5V
G2
R12
15.0k
1%
R11
15.8k
1%
420
419
C10
1μ
10V
C88
220μ
10V
G2
C9
1μ
10V
G2
+
4-WAYS VALVE
1
3
828
829
*D20
*Q23
*R260
e
b
15V
G2
179
180
c
236
*C174
63
64
30
31
835
836
837
838
20
52
29
G2
13V
13V
1
2
3
4
5
6
7
16
9
8
15
14
13
12
11
10
IC4
GND
VCC
G2
13V
1
2
3
4
5
6
16
9
15
14
13
12
11
VCC
G2
*D76
*D74
*D75
*D73
891
*IC5
PIPING TEMP.
SENSOR1 (4.96kΩ 3800)