Outdoor Unit - Panasonic CS-Z35UD3RAW Service Manual

10.2 Outdoor Unit

10.2.1 CU-Z25UBRA
(GRN)
GRN AC_GND
D502
D503
D504
D505
TERMINAL
BLK
BOARD
YLW 1
1
CN-OPT
ORG
(WHT)
2
4
RED
3
BRW
C
7
DRM
G1
Sensor (Thermistor)
Characteristics
70
Outdoor Air Sensor
Outdoor Heat Exchanger
60
Sensor
50
40
30
20
10
0
-10 0 10 20 30
o
Temperature ( C)
SINGLE PHASE POWER SUPPLY TO INDOOR UNIT
L N 1 2 3
BLK
WHT
SOUND PROOF
BOARD
NOISE FILTER
CIRCUIT
24V_1
R503
PC501
1
NONE
R507 D506
10k C507
NONE
R504
NONE
2k
2
24V_1
ZD502
R505
G1 PC502
1
NONE
D507
R508
NONE C508
10k
R506
ZD501
NONE
2k
G1 2
ELECTRONIC CONTROLLER
70
60
50
40
30
20
10
0
40 50 20
TERMINAL
BOARD
DATA
(RED)
COMMUNICATION
CIRCUIT
FUSE 103
AC-BLK
(20A 250V)
(BLK)
NOISE FILTER
AC-WHT
CIRCUIT
(WHT)
GRN
FG1
(GRN)
GRN
FG2
(GRN)
24V
CN-V1
1 1
RED
(WHT)
BLK
2
2
CN-PWR
(WHT)
G10_1
ELECTRONIC CONTROLLER (MAIN)
4
3
5V
4
R468 R467
1 10k 10k
1
WHT
WHT
WHT
CN-DEMAND
3 3
3
(WHT)
Compressor Temp. Sensor
(Thermistor) Characteristics
40 60 80 100 120 140
o
Temperature ( C)
39
REACTOR
GRY GRY
RAT1
RAT2
5V
(GRY)
(GRY)
R11
R12
15.8k
15k
1%
1%
B1
B1
C9
C10
1u
1u
10V
10V
G5
G5
CN–TH1
(WHT)
5V
C5
1u R1
CN–TANK
KB
4.99k
FUSE 2 FUSE 3
10V 1%
20A 20A
G5
PFC CIRCUIT
C174
G2
RECTIFICATION
CIRCUIT
CN-STM
FUSE 104
(WHT)
T3.15A L250V
RECTIFICATION
CIRCUIT
G2
15V
CN–HOT
D20
e (WHT)
SWITCHING POWER 1A5
SUPPLY CIRCUIT
c
G2
Q1
U (RED)
U
P
V (BLU)
V
N
W (YLW)
W
5V
R600
FUSE 101
C401 1k
T3.15A L250V
0.01u
50V C400
B1 10u
25V
G5 CN-MTR1
B3
IC25
(RED)
10 G5
W
5V
14
U
V
R14
16
10k CN-MTR2
2 1
G2 (WHT)
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.
Operation of the compressor and the outdoor fan motor can be checked by applying power after short-circuiting CN-S.
DC FM
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
3-4 Pipe temp sensor (4.96KΩ ±5% at 25°C)
CN-TANK (Measure resistance)
1-3 Comp temp sensor
CN-HOT
Measure resistance of v-coil CN-HOT
1-3 23Ω at 20°C
Measure voltage on PCB
during 4-way valve ON
O F F
CN-STM (Measure resistance / voltage)
1-6 46Ω / 13Vdc
CN-V1
Measure voltage
1-2 24Vdc
CN-DEMAND
Measure voltage
1-3 24Vdc
IPM (Input / Output)
Measure voltage
P & N, N-U,
280Vdc - 340Vdc
N-V, N-W
KY
C88
220u
10V
OUTDOOR AIR TEMP. SENSOR (THERMISTOR)
1
t°
t°
4
PIPING TEMP. SENSOR (THERMISTOR)
G5
1
t°
3
COMPRESSOR TEMP. SENSOR (THERMISTOR)
(WHT)
13V
1
M ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
6
1
ELECTRO-MAGNETIC COIL
(4-WAY VALVE)
3
RED
BLU
MS
3~
YLW
COMPRESSOR
1 WHT
PNK
3 BLK
RED
1
3 YLW
MS
BLU 3~
5
FAN MOTOR
(15KΩ ±5% at 25°C)
(50KΩ ±5% at 25°C)
1.8Vdc - 15Vdc
-