39
10.2.3 CU-Z80TKR
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10 0 10
Temperature (
o
C)
Resistance (k )
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 (k )
80 100 120 140
GRY BLK
1
1
2
2
GRY BLK
REACTOR
CONNECTOR
WHITE
SINGLE PHASE POWER SUPPLY
L
1
TERMINAL
BOARD
2
3
C
N
123
TERMINAL
BOARD
TERMINAL
BOARD
TO INDOOR UNIT
RED
WHT
1
4
1
4
WHT
WHT
WHT
BLK
BLK
RED
WHT
WHT
WHT
WHT
BLK
BLK
GRN
FG1
(GREEN)
FG2
(GREEN)
(GREEN)
FG3
CN-OPT
(WHITE)
CN-PWR
(WHITE)
CN-WHT
(WHITE)
CN-V1
(WHITE)
CN-TH1
(WHITE)
CN-TANK
(WHITE)
COMP. TEMP.
SENSOR (THERMISTOR)
ELECTRO-MAGNETIC
COIL (4-WAY VALVE)
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
CN-HOT
(BLUE)
CN-EV
(WHT)
RY-HOT
CN-FM
(WHITE)
CN-DEMAND
(WHITE)
CN-DEMAND
(WHITE)
1
1
1
2
1
2
4
3
1
3
7
ELECTRONIC CONTROLLER
(NOISE FILTER)
GRN
BLK
YLW
DRM
TO DRED
ORG
RED
BRW
WHT
WHT
ACN1
(WHITE)
ACL1
(BLACK)
COM3
(RED)
L2-I
(GRAY)
L2-0
(BLACK)
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
ELECTRONIC CONTROLLER
(MAIN)
PFC
CIRCUIT
Q10
1
1
133116
4
4
7
P
N
U
W
V
FUSE3
(25A, 250V)
CN-COM
(YELLOW)
CN-COM
(YELLOW)
CN-BLK
(BLACK)
AC-BLK
(BLACK)
AC-WHT
(WHITE)
FUSE2
(T3.15A L250V)
FUSE1
(T2.5A L250V)
(RED) U
(BLUE) V
(YELLOW) W
RED
RED
BLU
BLK
WHT
BLU
YLW
YLW
RED
COMPRESSOR
FAN MOTOR
OUTDOOR AIR TEMP. SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
t˚
t˚
t˚
CONNECTOR
WHITE
MS
3~
M
33
11
BLU
YLW
GRN
YLW/GRN
YLW/GRN
COMMUNICATION
CIRCUIT
NOISE FILTER
CIRCUIT
NOISE FILTER
CIRCUIT
M
CABINET
SIDE
PLATE
SOUND
PROOF
BOARD
5V
R404
10k
G2
12
CN-S
The unit turn to the Rated Frequency Cooling Operation by short-circuiting CN-S after applying power betweentheterminal1and2.
Operation of the compressor and the outdoor fan motor can becheckedby applying power after short-circuiting CN-S.
Outdoor air intake sensor (15K ±5% at 25°C)
Pipe temp sensor (4.96K ±5% at 25°C)
Comp temp sensor (50K ±5% at 25°C)
1.5K at 20°C
5
V
C45
1
C46
1
R100
15.0k
R101
15.8k
G5 G5 G5
G1
5V
5V
R425
R426
c
e
b
b
e
c
R427
Q26
Q25
4.7k
10k
G1 G1
13V
C84
G2
G2
*D33
*D34
*D35
*D36
C23
470μ
+
D21
97
5
2
1
10
13
15
14
16
R35
*
R47
R118
10k
R119
10k
G6
5V
R1
PC10
14
23
PC11
14
23
24V
R3
*C2*D61R5
24V
*C1*D60R6
D66
D62
D65
D63
1
2
4
3
D64
G10
G10
G6 G5
R159
C63
5V5V
5V
R410
4.99k
G5G5
C49
1
CN-TH1 (Measure resistance)
1-2
3-4
CN-TANK (Measure resistance)
1-3
CN-HOT
Measure resistance of v-coil CN-HOT
1-3
46 / 13Vdc
CN-EV (Measure resistance / voltage)
1-6
5Vdc
CN-COM
Measure voltage
1-4
24Vdc
CN-PWR
Measure voltage
1-2
24Vdc
CN-DEMAND
Measure voltage
1-3
Measure voltage on PCB
during 4-way valve ON 230Vac
OFF -
CN-FM
1 Vdc 280Vdc - 340Vdc
2 -
3 -
4 GND 0
5 Vcc 15Vdc
6 FG feedback output pulses 0-15Vdc
7 Vsp speed control input voltage
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