Panasonic CS-TZ20TKEW Service Manual page 34

10.2 Outdoor Unit
10.2.1 CU-TZ20TKE CU-TZ25TKE
SINGLE PHASE TO INDOOR UNIT
POWER SUPPLY
(BLK) (WHT)
1
2
L N
(BLK) (WHT)
RED
WHT
BLK
GRN
GRN
1
3
MS
FAN MOTOR
3 ~
5
AMP Air Conditioning
(RED)
TERMINAL
3
BOARD
(RED)
FUSE104
(15A 250V)
DATA
(RED)
NOISE
FILTER
CIRCUIT
AC-BLK
(BLK)
FUSE101
FUSE102
(20A 250V)
T3.15A L250V
AC-WHT
(WHT)
FG 1
(GRN)
PFC
FG 2
CIRCUIT
(GRN)
10
W
U
14
V
16
CN-MTR2
IC19
(WHT)
R120
1
1k
5V
3
B1
CN-MTR1
C175
+
C173
(RED) 0.01u
50V
G5 G5
Sensor (Thermistor)
Characteristics
70
1 Outdoor Air Sensor
Outdoor Heat Exchanger
2
60
Sensor
50
40
1
30
2
20
10
0
-10 0 10 20 30 40
o
Temperature ( C)
REACTOR
GRY GRY
RAT2 RAT1
(GRY) (GRY)
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
RECTIFICATION
CIRCUIT
FUSE103
T3.15A L250V
ELECTRONIC CONTROLLER
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
50 20 40
Temperature (
34
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5V
R11 R12
15.8k 15k
1% 1%
C6 C7
1u 1u
CN-TH
B1 B1
10V 10V (WHT)
G8 G8
1
4
5V
G8
CN-TANK
(WHT)
1
B1
3
C3
R1
CN-HOT
1u 4.99k
10V 1%
(WHT)
1
G8 G8
3
D9
1A5
13V
C189
G2
0.1u
CN-STM
B1
25V
(WHT)
1
G2
6
G2
Q1
P U (RED)
U
V (BLU)
V
W (YLW)
W
N
60 80 100 120 140
o
C)
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
t°
t°
PIPING TEMP. SENSOR
(THERMISTOR)
t°
COMP. TEMPERATURE
SENSOR (THERMISTOR)
YLW
YLW
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
M
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
RED
BLU
MS
3 ~
YLW
COMPRESSOR