Outdoor Unit - Panasonic CU-Z20VKE Series Installation Instruction

10.2 Outdoor Unit

10.2.1 CU-Z20VKE
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)
CN-MTR2
(WHT)
1
MS 3
FAN
3 ~
MOTOR
5
CN-MTR1
(RED)
1
3
C401
TERMINAL
BOARD
GRY
FUSE105 RAT2
(15A 250V) (GRY)
NOISE FILTER
CIRCUIT
FUSE102
T3.15A L250V
FUSE103
T3.15A L250V
PFC
CIRCUIT
10
W
U
14
V
16
IC19
R245
5V
C222
G6
ELECTRONIC CONTROLLER
G5
Sensor (Thermistor)
Characteristics
70
1 Outdoor Air Sensor
2 Outdoor Heat Exchanger
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
RECTIFICATION
SUPPLY CIRCUIT
FUSE104
CIRCUIT
T3.15A L250V
P
N
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
50 20 40
Temperature (
40
5V
CN-TH
R206
R205
(WHT)
15k
15.8k
1%
1%
1
5V
4
G5 1
R209 3
CN-TANK
4.99k
(WHT)
1%
16V
1
Q604
G5
3
CN-HOT
D602
(WHT)
IC3
G4A
1
1 16
2 15
3 14
4 13
6
14V
CN-STM
(WHT)
C601
Q1
G4A
U (RED)
U
V (BLU)
V
W (YLW)
W
60 80 100 120 140
o
C)
OUTDOOR AIR TEMP.
SENSOR
t°
(THERMISTOR)
PIPING TEMP. SENSOR
t°
(THERMISTOR)
COMP. TEMPERATURE
t°
SENSOR
(THERMISTOR)
YLW
ELECTRO-MAGNETIC
COIL
(4-WAYS VALVE)
YLW
ELECTRO-MAGNETIC
M
COIL
(EXPANSION VALVE)
RED
BLU
MS
YLW 3 ~
COMPRESSOR