Outdoor Unit - Panasonic CS-E7PKR Service Manual

9.2

Outdoor Unit

9.2.1 CU-E7PKR CU-E9PKR CU-E12PKR
ELECTRONIC CONTROLLER
(DEMAND CONTROL)
D502
D503
24V_1
D504
AC_GND
R504
GRN (GREEN) D505
2k
TERMINAL
BOARD 24V_1
BLK
YLW
1
1
ORG
2
R506
2k
4
RED
3
5
BRW
C 6
24V_1
7
DRM
G1 D501
CN-OPT
(WHITE)
*R501
SINGLE PHASE
POWER SUPPLY
TO INDOOR UNIT
GROUNDING
L N 1
TERMINAL
BLK
YLW/GRN
PC501
1 4
*C507
2 3
CN-DEMAND CN-DEMAND
PC502
1 4
1
(WHITE) (YLW)
WHT
1
*C508
WHT
WHT
2 3
3
CN-PWR
(WHT)
1
3 2
*R502 *C504
*C502
2
4 LF501 1
G1
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
o
Temperature ( C)
2 3
GROUNDING
TERMINAL
TERMINAL
BOARD
ELECTRONIC CONTROLLER
WHT
(MAIN)
RED
NOISE FILTER
AC-BLK
CIRCUIT
(BLACK)
BLK
AC-WHT (WHT)
WHT
FG1
(GRN)
GRN
FG2
(GRN)
GRN
FAN
CN-MTR2
MOTOR
(WHT)
1 10
W
MS
3
U
3 ~
14
V
5 16
IC19
CN-MTR1
(WHT)
1 *R311
*R312
5V
*R313
5
*C186 *C188
+
*C178
D77 9
G2 L1
+
C241
R437
L3
*R438 470µ
5V
R468 5V
R467
R14
10k
CN-V1
G2 2 1
3 1 2
G2 (WHT)
CN-S
RED
BLK
The unit turn to the Rated Frequency Cooling Operation by short-circuiting CN-S after applying power between the terminal 1 and 2.
Operation of the compressor and the outdoor fan motor can be checked by applying power after short-circuiting CN-S.
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20
40 50
54
REACTOR
GRY GRY
5V C88
220
RAT2 RAT1
(GRY) (GRY) R11
15.8k
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
FUSE 104
T3.15A L250V
SWITCHING
POWER SUPPLY
CIRCUIT
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
FUSE 101
T3.15A L250V
Q1
P
U
V
W
N
*C187
7
10
13
5
15
2
14 RY-HT1
16 1
HT1 (ORG) ACN1 (ORG)
ORG
ORG
HEATER
40 60 80 100 120 140
o
Temperature ( C)
R12
15.0k
C10
1
CN-TH1
OUTDOOR AIR TEMP
(WHT)
SENSOR (THERMISTOR)
1
G2
2 t
3
4 t
C9
1 PIPING TEMP
SENSOR (THERMISTOR)
G2 G2
CN-TANK
(WHT) COMPRESSOR TEMP
5V
SENSOR (THERMISTOR)
1
t
3
C5 R1
1 4.99k
G2 G2
CN-HOT ELECTRO-MAGNETIC
(WHT)
COIL (4-WAY VALVE)
1
YLW
*D20
G2
3
YLW
(RED)
RED
(BLU)
BLU MS
(YLW) 3 ~
YLW
COMPRESSOR