Outdoor Unit - Panasonic CS-Z20XKEW Service Manual

10.2 Outdoor Unit

10.2.1 CU-Z20XKE CU-Z25XKE
TO INDOOR UNIT
S1
2 3
RED
DATA
( RED )
AC-BLK
(BLK)
FUSE 101
(20A 250V)
AC-WHT
(WHT)
GRN
FG 1
(GRN)
GRN
FG 2
(GRN)
1
MS 3
FAN
3 ~
MOTOR
5
CN-MTR2
(WHT)
TERMINAL
BOARD
GRY
FUSE105 RAT2
(15A 250V)
(GRY)
NOISE FILTER
CIRCUIT
FUSE102
T3.15A L250V
FUSE103
T3.15A L250V
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
10
W
U
14
V
16
IC19
ELECTRONIC CONTROLLER
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
RAT1
(GRY)
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
FUSE104
T3.15A L250V
Q1
P
N
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
50 20 40 60
Temperature (
38
5V
OUTDOOR AIR TEMP.
CN –TH
SENSOR
R206
R205 (WHT)
15k
(THERMISTOR)
15.8k
1
1%
1%
4 PIPING TEMP. SENSOR
G5 (THERMISTOR)
CN –TANK
5V
(WHT)
1
R209
3
COMP. TEMPERATURE
4.99k
1% SENSOR
CN –HOT
G5 (THERMISTOR)
(WHT)
1 YLW
3 YLW
*D602
CN-STM
G4A
(WHT)
1
*IC3
U
4 13
V
3 14
14V
2 15
W
6
1 16
*C601
G4A
U (RED) RED
V (BLU) BLU
W (YLW) YLW
80 100 120 140
o
C)
t°
t°
t°
ELECTRO-MAGNETIC
COIL
(4-WAYS VALVE)
ELECTRO-MAGNETIC
M
COIL
(EXPANSION VALVE)
MS
3 ~
COMPRESSOR