Panasonic CU-2TZ41TBE - 8 Electronic Circuit Diagram

20
8. Electronic Circuit Diagram
TO INDOOR
UNIT B
1 2 3
TO INDOOR
UNIT A
SINGLE PHASE POWER SUPPLY
1
TERMINAL BOARD
TERMINAL BOARD
TERMINAL BOARD
PARTICULAR PLATE
L N
2 3
ELECTRONIC
CONTROLLER
(NOISE FILTER)
R B Y
R
B Y
U
V W
U
V
W
P
N
(RED) (BLUE)
(YELLOW)
CONNECTOR WHITE
COMPRESSOR
Q23
1 6
CN-DATA
(WHITE)
CN-DATA1
6
C124
1u
10V
C123
1000p
50V
1
BL
W
AC-WHT (WHITE)
BL W
AC-BLK (BLACK)
CN-WHT (WHITE) CN-BLK (BLACK)
AC-WHT2 (WHITE) AC-BLK2 (BLACK)
DATA1 (RED) DATA2 (BROWN)
FG1
(GREEN)
FG2 (GREEN)
FUSE 3 (25A 250V)
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
GRY
GRY
RAT2 (GRAY)
RAT1 (GRAY)
REACTOR
FUSE 2
(T3.15A L250V)
W W W W W W
ELECTRONIC CONTROLLER
(MAIN)
FUSE 1
(T3.15A L250V)
MS
3~
CN-TH1 (WHITE)
CN-FM1 (WHITE)
7
4
1
CN-TH3 (WHITE)
CN-TH4
(RED)
CN-TH2
(BLUE)
4 1
AIR TEMP. SENSOR (THERMISTOR)
HEAT EXCHANGER TEMP. SENSOR (THERMISTOR)
3 1
DEFROST TEMP. SENSOR (THERMISTOR)
LIQUID PIPE TEMP. SENSOR (UNIT A) (THERMISTOR) LIQUID PIPE TEMP. SENSOR (UNIT B) (THERMISTOR)
4 1
GAS PIPE TEMP. SENSOR (UNIT A) (THERMISTOR)
GAS PIPE TEMP. SENSOR (UNIT B) (THERMISTOR)
・CONNECTOR WHITE
(HEAT ONLY)
1
3
t
FAN MOTOR
t t
WHT
WHT
WHT
t t
M
R
BL
W
B Y
t t
ELECTRO MAGNETIC COIL (4-WAY VALVE)
・CRANKCASE
HEATER
t
TANK TEMP. SENSOR (THERMISTOR)
CN-HOT (WHITE)
HT1 (ORANGE) HT2 (ORANGE)
1
3
CONNECTOR YELLOW
ORG ORG
FUSE 5
(20A 250V)
FUSE 4
(20A 250V)
BL
W
BL
W
R
BR
Y/G
GG
・
UNIT A ELECTRO-
・MAGNETIC COIL
(EXPANSION VALVE)
CN-EV1
(WHITE)
1
6
M
・UNIT B ELECTRO-
・MAGNETIC COIL
(EXPANSION VALVE)
CN-EV2
(YELLOW)
1
6
M
CN-DEMAND
(WHITE)
G5
R324
C34
G5
5V
1
3
CN-TANK
(WHITE)
5V
C106
G5
G5
R113 C106
G5
C110
R116
G5
5V
C108
R115
G5
G5
5 1
5V
C118
G5
C117
R131 R129
G5
C199
*R315
*R316
C200
G5
5V
5V
C113 R118
G5
G5
CN-PSW
(RED)
R R
1 2
HIGH PRESSURE SW.
5V
10k
Q34
Q32
RY-PWR
C
E
C207
R402
R403
4.7k
G6
G6
E
C
B
15V
1
IC2 3
VCC
2 3 4 5 6 7
16 15 14 13 12
11
10
8
GND
G2
9
IC2 3 IC2 3 IC2 3 IC2 3 IC2 3 IC2 3
15V
15V
1
IC24
VCC
2 3 4 7
16 15 14 13 10
G2
9
IC24 IC24 IC24 IC24
D136
D137
D139
D140
D129
D130
D132
D133
Q31
C202
E
C
B
15V
R314
G2
Q30
D145
E
C
B
15V
R312
G2
D146
G2
C201
G2
G2
*D143
*D142
*Q28
*R224
E
C
B
5V
*R225
C
4.7k
10k
E
B
G2
IC20
TC4052BF
15 16 14 13 12 11 10 9
1
VDD
2X 1X
X-COM
0X 3X
A
B
0Y 2Y Y-COM 3Y 1Y INH VEE VSS
2 3 4 5 6 7 8
G4
*C42
C121
1000p
50V
R143
10k
5V
5V
G4
Sensor (Thermistor)
Characteristics
70 60 50 40 30 20 10
0
-10 0 10
Temperature (
o
C)
Resistance (kΩ)
20 30 40 50
1 2
1
2
Outdoor Air Sensor Outdoor Heat Exchanger Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70 60 50 40 30 20 10
0
20 40 60
Temperature (
o
C)
Resistance (kΩ)
80 100 120 140
RECTIFICATION
CIRCUIT
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING
POWER SUPPLY
CIRCUIT