Outdoor Unit - Panasonic CS-RZ25VKRW Service Manual

10.2 Outdoor Unit

10.2.1 CU-RZ25VKR CU-RZ42VKR
TERMINAL
(GRN)
BLK NOISE FILTER CIRCUIT
BOARD
AC_GND
1
YLW
1
ORG
2 4
G1
RED
3
BRW
C
7
DRM
CN-OPT
DCH
(WHT)
C501
1000p
3k V
24V_1
D501
1A5
1SS355
D502
1SS355
D503
1SS355
D504
1SS355
D505
G1
G1
SINGLE PHASE POWER SUPPLY TO INDOOR UNIT
L N 1
BLK
WHT
GRN
GRN
SOUND PROOF
BOARD
MS
FAN
MOTOR 3~
DCH
DCH DCH
C506
C503 C505
1000p
1000p 1000p
3k V
3k V 3k V
3 2
*C504
NONE
1
4
LF501
G1
24V_1
PC501
*R503 1 4
R507
*D506
NONE
10k
NONE
*C507
1/10 W
NONE
2 3
R504 TLP421
2k (BL.J)
24V_1
ZD502
1W
30V
*R505
PC502
R508 1 4
NONE
*D507
10k
NONE
*C508
1/10 W
NONE
2 3
R506 TLP421
2k
(BL.J)
ZD501
1W
30V
ELECTRONIC CONTROLLER
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)
TERMINAL
2 3
BOARD
RED
GRY
RAT2
(GRY)
FUSE105
(15A 250V)
DATA
(RED)
AC-BLK
NOISE FILTER CIRCUIT
(BLK)
FUSE101 FUSE102
(20A 250V) T3.15A L250V
AC-WHT
(WHT)
FUSE103
FG 1
T3.15A L250V
(GRN)
FG 2
(GRN)
PFC CIRCUIT
RECTIFICATION CIRCUIT
1
10
W
3
U
14
V
CN-MTR2
16
5
(WHT)
IC19
1
R245
5V
*C222
3
*C401
NONE
NONE
G6
24V
CN-MTR1 G5
(RED)
CN-V1
(WHT)
1
1 RED
BLK
2 2
CN-PWR
(WHT) G10_1
1
1
WHT
WHT
WHT
3 3
CN-DEMAND G6
(WHT)
CN-DEMAND
(WHT)
*R220
5V
NONE
10k
*R221 *R219
NONE NONE
12k
20k
ELECTRONIC CONTROLLER (MAIN)
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
50 20 40 60 80 100 120 140
o
Temperature ( C)
47
REACTOR
GRY
RAT1
(GRY)
COMMUNICATION VJP15
CIRCUIT
G6
G5
RECTIFICATION
CIRCUIT
FUSE104
T3.15A L250V
SWITCHING POWER
SUPPLY CIRCUIT
DC0.3
INJ0203BC1
D602
CRH01 (TEM)
G4A
*IC3
KID65003AP
R247
4 13
3 14
R248
2 15
R249
1 16
R250
5 12
6 11
COMMON
7 10
*IC3
KID65003AP
G4A
Q1
P
U
V
W
N
5V
R14
10k
G2 2 1
CN-S
The unit turn to the Rated Frequency Cooling Operation by short-circuiting CN-S after applying power between the terminal 1 and 2.
DC FM
Operation of the compressor and the outdoor fan motor can be checked by applying power after short-circuiting CN-S.
CN-MTR1
1 Feedback output (0 - 5Vdc pulse)
2 5Vdc
3 GND
CN-MTR2 (Measure winding resistance / voltage)
1 W ~80 ohm / 15Vdc
3 U ~80 ohm / 15Vdc
5 V ~80 ohm / 15Vdc
CN-TH1 (Measure resistance)
1-2 Outdoor air intake sensor (15KΩ ±5% at 25°C)
3-4 Pipe temp sensor (4.96KΩ ±5% at 25°C)
CN-TANK (Measure resistance)
1-3 Comp temp sensor (50KΩ ±5% at 25°C)
CN-HOT
Measure resistance of v-coil CN-HOT
1-3 18Ω at 20°C
Measure voltage on PCB
during 4-way valve ON 1.8Vdc - 15Vdc
OFF -
CN-PWR
Measure voltage
1-2 24Vdc
CN-DEMAND
Measure voltage
1-3 24Vdc
5V
R206 R205
15.8k
15k OUTDOOR AIR TEMP. SENSOR
1%
1%
(THERMISTOR)
1
t°
t°
4
PIPING TEMP. SENSOR
CN–TH
(THERMISTOR)
(WHT)
R209
4.99k
1% VJP14
5V
1
G5 G4
t°
COMP. TEMPERATURE SENSOR
3
(THERMISTOR)
CN–TANK
15V (WHT)
*Q604
1
YLW
ELECTRO-MAGNETIC
COIL
3 YLW (4-WAYS VALVE)
CN–HOT
(WHT)
1
M
14V
6
CN–STM
(WHT)
9
*C601
0.1u
50V
B
GND
8
G4A
U (RED) RED
V (BLU)
BLU
MS
W (YLW)
YLW 3~
COMPRESSOR