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37
9.2.3 CU-Z42TKE
tº
tº
tº
M
MS
3~
MS
3~
TO INDOOR UNIT
TERMINAL
BOARD
RED
DATA
(RED)
BLK
WHT
AC-BLK
(BLK)
FUSE101
FUSE101
(20A 250V)
AC-WHT
(WHT)
GRN
GRN
(GRN)
(GRN)
FG 1
FG 2
FAN
MOTOR
1
1
3
5
5
CN-MTR2
(WHT)
CN-MTR1
(WHT)
ELECTRONIC CONTROLLER
10
14
14
W
U
V
16
IC20
FUSE104
(15A 250V)
FUSE102
T3.15A L250V
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
COMMUNICATION
CIRCUIT
REACTOR
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
SWITCHING POWER
SUPPLY CIRCUIT
FUSE103
T3.15A L250V
CN-TH
(WHT)
1
1
3
1
1
3
6
4
CN-TANK
(WHT)
CN-HOT
(WHT)
CN-STM
(WHT)
U (RED)
V (BLU)
W (YLW) YLW
RED
BLU
BLU
COMPRESSOR
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
ELECTRO-MAGNETIC
COIL
(4-WAYS VALVE)
COMP. TEMPERATURE
SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
NOISE FILTER
CIRCUIT
S1
2
3
P
N
Q1
U
V
W
YLW
YLW
COMPERSSOR TERMINAL
THE PARENTHESIZED LETTERS IS
INDICATED ON TERMINAL COVER.
RED (RED)
(TRADEMARK)
BLUE (BLU)
YELLOW (YEL)
REMARKS
BLU: BLUE
BLK: BLACK
WHT: WHITE
RED: RED
YLW: YELLOW
GRY: GRAY
GRN: GREEN
ORG: ORANGE
BLU: BLUE
BLK: BLACK
WHT: WHITE
RED: RED
YLW: YELLOW
GRY: GRAY
GRN: GREEN
ORG: ORANGE
Resistance of Compressor Windings
MODEL CU-Z42TKE
CONNECTION 9RS102XEA21
(Ω)
U-V 1.211
U-W 1.211
V-W 1.211
Note: Resistance at 20°C of ambient temperature.
38
10. Electronic Circuit Diagram
10.1 Indoor Unit
70
60
50
40
30
20
-10
0
10
20
30
40
50
10
0
Re
s
is
ta
n
c
e
(k
Ω
)
Sensor (Thermistor)
Characteristics
Pipe temp. Sensor
Intake Air Temp. Sensor
Temperature (°C)
tº
tº
tº
SW01
GROUNDING
TERMINAL
GROUNDING
TERMINAL
TO OUTDOOR UNIT
POWER SUPPLY
TERMINAL
BOARD
S1
N
L1
2
3
3
TEMP. FUSE
102ºC 3A
TEMP. FUSE
102ºC 3A
Y/G
Y/G
EVAPORATOR
BR
GR
GR
Y
W
20A 250V
FUSE500
20A 250V
FUSE501
RY-PWR
ELECTRONIC CONTROLLER (SUB)
RY-PWR2
(GRAY)
ACN501
(WHITE)
ACN502
(YELLOW)
AC302
(BROWN)
ACL501
(BLACK)
AC306
BLACK
CN-DATA 1
(WHT)
CN-DATA 1
(YLW)
CN-DATA 2
(YLW)
CN-DATA 2
(WHT)
CN1
(WHT)
HIGH VOLTAGE POWER SUPPLY
CN2
(WHT)
NANOE
GENERATOR
ELECTRONIC
CONTROLLER
(ECO SENSOR)
ELECTRONIC
CONTROLLER
(COMPARATOR)
ELECTRONIC
CONTROLLER
(ECO SENSOR)
CN-NANO
(GRN)
1
1
1
1
2
1
4
5
3
1
5
1
3
3
5
W W W
W W W W W
P
W
W
W
Y
O
R
BR
W
G
R
R
R
O
O
O
Y
Y
Y
P
P
P
Y
GR
BR
BR
BR
BR
W
W
W
W
W
BL
B
W
BL
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
4
4
5
5
5
5
6
5
5
5
5
1
3
3
3
CN-SENS2
(YLW)
CN-SENS2
(YLW)
CN-SENS1
(YLW)
CN-SENS1
(WHT)
CN-MSENS
(BLU)
CN-MSENS
(BLU)
CN-RMT
(WHT)
CN-CNT
(WHT)
CN-STM1
(WHT)
CN-STM2
(YLW)
CN-STM3
(BLU)
CN-TH
(RED)
M
M
M
PIPING TEMPERATURE SENSOR 2 (THERMISTOR)
PIPING TEMPERATURE SENSOR 1 (THERMISTOR)
SUCTION TEMPERATURE SENSOR (THERMISTOR)
PIPING TEMPERATURE SENSOR 1 (THERMISTOR)
SUCTION TEMPERATURE SENSOR (THERMISTOR)
UP DOWN LOUVER
MOTOR (OUTER)
UP DOWN LOUVER
MOTOR (INNER)
LEFT RIGHT
LOUVER MOTOR
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
ELECTRONIC CONTROLLER (MAIN)
COMMUNICATION
CIRCUIT
FUSE301
T3.15A L250V
AC306 (BLK)
AC303 (WHT)
AC304 (RED)
G301 (GRN)
W
R
G
FAN MOTOR
BL
W
W
W
W
W
W
W
W
W
W
W
B
R
Y
7
6
5
4
4
4
4
1
1
1
1
1
6
6
CN-RCV
(YLW)
CN-FM (WHT)
CN-RCV
(WHT)
CN-DISP
(WHT)
CN-DISP
(YLW)
ELECTRONIC
CONTROLLER
(DISPLAY)
REMOTE CONTROLLER
LIGHT SENSOR
ELECTRONIC
CONTROLLER
(RECEIVER)
M
(FOR Z20/25/35/42TKEW &
XZ20/25/35TKEW ONLY)
TH303
RY-PWR2
RY-PWR
1
2
NTC
23
43
E
C
B
R201 1k
R222 0
R202 1k
R203 1k
R204 1k
R214
R221
LED203 White
LED204
White
LED202 White
LED201 White
Q1
GND-A
5V
Power
Timer
nanoe/nanoe-G
econavi
gnd
Power
Timer
nanoe/nanoe-G
econavi
gnd
GND-A
5V
13V
A
K
A
K
A
K
A
K
R37
10k
C45
C49
R54
270
5V
5V
12V
RY-PWR
12V
43
R209
47
R214
1.0k
1%
R213 JP204
GND-A
GND-A
GND
IC201
GP1UM262R
GND
GND
GND-A
1
4
5
Vout
Vcc
2
3
KB
C202
0.01u
16V
C202
0.01u
16V
KRE
C201
47u
6.3V
C201
47u
6.3V
5V_
5V_
C410
1000p
50V
KB
G2
5V_3
C410
1000p
50V
KB
G2
5V_3
KB
C402
0.1u
25V
KB
C404
0.1u
25V
KB
C403
0.1u
25V
C403
0.1u
25V
R401
27.0k
27.0k
1%
R402
10.0k
10.0k
1%
R403
13.0k
13.0k
1%
G2
GND
VCC
G2
G2
G2
5V_3
5V_3
5V_3
5V_3
3
2
5
6
7
8
1
4
4
GND
VCC
3
2
5
6
7
8
1
NJM2903M (TE1)
NJM2903M (TE1)
G2
5V_3
IC402
IC402
IC401
IC401
C65
0.1u
25V
B1
0.1u
25V
B1
C67
1000p
50V
JB
C66
1000p
50V
JB
R109
33k
R108
33k
Q18
Q21
Q20
D
G
C
4.7k
4.7k
10K
10K
C
E
E
B
B
S
F303
32V
500mA
50V
100mA
50V
100mA
G7
G7
G7
C40
0.1u
0.1u
G2
R77
10k
R78
1k
R74
10k
R75
1k
C41
1000p
C44
1000p
5V
R89
NONE
R40
0
JR4
0
R58
1M
1%
1%
C14
1000p
50V
B1
1000p
50V
B1
C3
0.1u
16V
B1
0.1u
16V
B1
5V
5V
12V
3
4
5
6
7
6
7
2
1
16
15
14
13
14
13
12
11
10
11
10
IC06
IC06
IC06
IC06
IC06
IC06
IC06
IC06
G7
12V
R112
10k
C67
1000p
50V
5V
R113
1k
5V
R62
15k
1%
R61
20k
1%
R63
20k
1%
C25
1u
16V
B3
C27
1u
16V
B3
C28
1u
16V
B3
R90
10k
R82
10k
L6
L5
C57
C52
1000p
50V
B1
C51
1000p
50V
B1
F301
32V
500mA
5V
5V
12V
5V
Power
Timer
nanoe
econavi
GND
Power
Timer
nanoe
econavi
GND
R30
1k
R47
68 1/2W 68 1/2W
R46
1
2
BZ01
A48PKM17EPP
12V
5V
3
4
5
6
7
6
7
2
1
16
15
14
13
14
13
12
11
10
11
10
IC05
IC05
IC05
IC05
IC05
IC05
IC05
IC05
12V
3
4
5
6
7
6
7
2
1
16
15
14
13
14
13
12
11
10
11
10
IC03
IC03
IC03
IC03
IC03
IC03
IC03
IC03
(FOR Z50/71TKEW & XZ50TKEW ONLY)
ELECTRONIC
CONTROLLER
(RECEIVER &
DISPLAY)
LIGHT SENSOR
LED201
A
K
LED202
A
K
LED203
A
K
LED204
A
K
R222
R221
R204
R214
R223
Q1
R203
R202
R201
E
C
B
GND
1
4
5
VOUT
VCC 2
3
E
C
GND-A
GND-A
5V
C402
0.01u
0.01u
16V
B1
C401
47u
6.3V
KRE
KRE
R409
47
GND-A
GND-A
5V
13V
5V
R414
R410
R411
R412
R413
JP401
JP402
JP403
JP404
SEN201
IC401
1
8
CN-DISP
(WHT)
4
1
CN-RCV
(YLW)
1
6
CN-DISP
(YLW)
W
W
W
W
W
W
W
W
39
10.2 Outdoor Unit
10.2.1 CU-Z20TKE
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
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
402
403
404
TERMINAL
BOARD
TO INDOOR UNIT
COMPRESSOR
AC-WHT
(WHT)
CN-MTR1
CN-MTR2
(WHT)
IC19
FG1
(GRN)
FG2
(GRN)
GRN
BLK
WHT
GRN
AC-BLK
(BLK)
DATA
(RED)
RED
GRY
RAT2
(GRY)
GRY
RAT1
(GRY)
REACTOR
RED
BLU
YLW
U (RED)
FUSE101
T3.15A L250V
V (BLU)
W (YLW)
U
V
W
3
5
5
4
3
2
1
10
14
16
1
P
N
SWITCHING
POWER
SUPPLY
CIRCUIT
FUSE103
(20A 250V)
3
2
S1
COMMUNICATION
CIRCUIT
PFC
CIRCUIT
W
U
V
ELECTRONIC
CONTROLLER
MS
3 ~
NOISE
FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
*C178
5V
4-WAYS VALVE
1
3
D20
G2
CN-HOT
179 828
829
180
R311
1k
C187
0.01μ
50V
G2
R312
1k
C188
0.01μ
50V
G2
R313
1k
C186
0.01μ
50V
G2
G2
+
Q1
FAN MOTOR
MS
3 ~
TANK TEMP.
SENSOR (50kΩ 3950)
SENSOR (50kΩ 3950)
1
3
3
CN-TANK
WHITE
5V
G2
R1
4.99k
1%
C5
1μ
10V
G2
CN-TH1
WHITE
OUTDOOR TEMP.
SENSOR (15kΩ 3950)
SENSOR (15kΩ 3950)
PIPE TEMP.
SENSOR1 (4.96kΩ 3800)
SENSOR1 (4.96kΩ 3800)
5V
1
2
3
4
2
3
4
G2
R12
15.0k
1%
R11
15.8k
1%
420
419
C10
1μ
10V
G2
C9
1μ
10V
G2
FUSE104
T3.15A L250V
RECTIFICATION
CIRCUIT
M
CN-STM
63
64
30
31
835
836
837
838
6
5
4
3
2
1
5
4
3
2
1
D74
D75
D76
C174
0.1μ
25V
G2
13V
EXPANSION
VALVE
VALVE
D73
13V
1
2
3
4
5
16
9
15
14
13
12
IC4
VCC
G2
13V
1
2
3
4
16
16
10
14
12
16
10
14
12
10
14
12
9
15
14
13
IC5
CN1
CN1
VCC
5
12
6
7
11
10
G2
169
171
170
168
40
10.2.2 CU-Z25TKE CU-Z35TKE CU-Z50TKE CU-Z71TKE
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10
0
10
Temperature (
o
C)
Resistance (kΩ)
20
30
40
50
Outdoor Air Sensor
Outdoor Heat Exchanger
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
tº
tº
tº
M
TO INDOOR UNIT
TERMINAL
BOARD
S1
2
3
RED
GRY
GRY
REACTOR
RAT2
(GRY)
RAT1
(GRY)
DATA
(RED)
BLK
AC-BLK
(BLK)
WHT
GRN
GRN
FAN
MOTOR
FUSE 1
FOR Z25/35TK
(20A 250V)
FOR Z50/71TK
(25A 250V)
FUSE 3
T3.15A L250V
AC-WHT
(WHT)
FG1 (GRN)
CN-MTR2
(WHT)
CN-MTR1
(RED)
FG2 (GRN)
1
10
P
N
U U (RED)
V (BLU)
W (YLW)
CN-STM1
(WHT)
V
W
Q1
14
W
IC19
U
V
16
1
3
3
5
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
PFC
CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING
POWER
SUPPLY CIRCUIT
CN-TH1
(WHT)
CN-TANK
(WHT)
CN-HOT
(WHT)
1
1
1
1
3
3
6
4
OUTDOOR AIR TEMP. SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR
(THERMISTOR)
COMPRESSOR TEMP.
SENSOR (THERMISTOR)
ELECTRO-MAGNETIC
COIL
(4-WAY VALVE)
YLW
YLW
YLW
RED
BLU
COMPRESSOR
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
MS
3~
ELECTRONIC CONTROLLER
MS
3~
FUSE 8
T3.15A
L250V
FUSE 6
(20A 250V)
FUSE 5
(20A 250V)
D59
D57
NONE
G4A
AK
AK
5V
G5
C401
0.1u
25V
B1
15V
G4A
IC8
C921
0.1u
50V
B3
10
9
COMMON
GND
IC8
18
17
16
15
1
2
3
4
5V
G5
C99
1u
10V
B1
R28
4.99k
1%
5V
C98
470u
10V
KY
G5
G5
G5
C10
1u
10V
B1
R22
15k
1%
R21
15.8k
1%
C9
1u
10V
B1
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