Page 29
Wiring diagram
Connective wiring diagram
Air Condition Link-Circuit
Power supply:
1-Phase 220-240V~
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
Power supply:
1-Phase 220-240V~
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
INDOOR UNIT
S1 S2
P Q
INDOOR UNIT
P Q
S1 S2
L2
L1
L2
L1
L1
L2
L3
N
S
1
S
2
A
B
C
OUTDOOR UNIT
2-core shielded cable(24AWG)
Power supply:
1-Phase 220-240V~
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
Power supply:
1-Phase 220-240V~
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
INDOOR UNIT
P Q
S1 S2
L2
L1
INDOOR UNIT
S1 S2
P Q
L2
L1
OUTDOOR UNIT
S1
S2
L2
L
1
Power supply:3-Phase 380-415V~
30K-60K: 5-core cable(14AWG)
Power supply:3-Phase 220V~
30K-60K: 5-core cable(12AWG)
Power supply:1-Phase 220-240V~
18K: 3-core cable(14AWG)
19K-36K: 3-core cable(12AWG)
37K-60K: 3-core cable(10AWG)
L1
L2
L3
N
S
1
S
2
A
B
C
OUTDOOR UNIT
INDOOR UNIT
S
1
S
2
L2
L1
2
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
OUTDOOR UNIT
S1
S2
INDOOR UNIT
S
1
S
2
L2
L1
Use 3-core cable(14AWG)
for the models which with
auxiliary electric heater(PTC);
Use 3-core cable(16AWG)
for the others.
(1
)L
1
(2)
L2
L2
L
1
Q
P
Q
P
2-core shielded cable(24AWG)
2-core shielded
cable(24AWG)
Power supply:1-Phase 220-240V~
18K: 3-core cable(14AWG)
19K-36K: 3-core cable(12AWG)
37K-60K: 3-core cable(10AWG)
Power supply:3-Phase 380-415V~
30K-60K: 5-core cable(14AWG)
Power supply:3-Phase 220V~
30K-60K: 5-core cable(12AWG)
(1
)L
1
(2)
L2
2-core shielded
cable(24AWG)
INDOOR UNIT
1
2
3
L1 L2 S
INDOOR UNIT
Air Condition Link-Circuit
OUTDOOR UNIT
Power supply:3-Phase 380-415V~
5-core cable (14AWG)
Power supply:3-Phase 220V~
5-core cable (12AWG)
L
1
L
2
L
3
N
OUTDOOR UNIT
Power supply:
1-Phase 208-240V~
≤
24K : 3-core cable (14AWG)
25K-36K : 3-core cable (12AWG)
≥
37K : 3-core cable (10AWG)
4-core cable (16AWG)
4-core cable (14AWG)
(with auxiliary electric heater)
4-core cable (16AWG)
4-core cable (14AWG)
(with auxiliary electric heater)
1
2
3
L1 L2 S
1
2
3
L
1
L
2
1
2
3
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
S1+S2
0~F
0~F
0~F
0~F
NETADDRESS
CODE
0~15
16~31
32~47
48~63
F A C T O R Y S E T T I N G
FOR SETTING NETADDRESS
INDOOR UNIT
MAINBOARD
CN33
ALARM
Alarm
Output
16023000007041
WIRING DIAGRAM
(INDOOR UNIT)
DISPLAY
BOARD
WIRE
CONTROLLER
10
CN10
5
1 2
ON
1 2
ON
1 2
ON
1 2
ON
EEPROM
DEFAULT
FACTORY
SETTING
FOR TEMP. COMPENSATION(HEATING)
SW6
CODE
6
℃
2
℃
4
℃
T2
T1
CN6
4
BLACK
WHITE
INDOOR COIL TEMP. SENSOR
ROOM TEMP. SENSOR
CN40
W
IR
E
C
O
N
T
R
O
L
L
E
R
4
CN5
WATER LEVEL SWITCH
CN9
X Y E
To CCM
Comm.Bus
HB HA
CN45
W
IR
E
C
O
N
T
R
O
L
L
E
R
Y/G
C
N
1
8
J7
CN23
ON/OFF
Remote
Control
CN43
FAN FOR THE
FRESH AIR
OR ANION
GENERATOR
NOTE:
1.The parts with dotted line indicates
optional features.
2.Remove the short connector of J7
when you use the "on-off" function.
AC FAN
CAP
Y/G
WHITE
WHITE
(GRAY)
CN4
P1
P2
BLACK
BROWN
M
5
3
1 2
ON
1 2
ON
1 2
ON
1 2
ON
SW1
TEL0
24
℃
15
℃
8
℃
EEPROM
DEFAULT
FACTORY
SETTING
FOR ANTI-COLD WIND
1
ON
1
ON
FACTORY SETTING
FOR SETTING AUTO-RESTART
FOR SETTING AUTO-RESTART
SW3
MODE
AUTO-RESTART NOT AUTO-RESTART
RED
CN2
CN1
BLACK
CN3
YELLOW(WHITE)
TO OUTDOOR UNIT
Y/G
1
2
3
Reactor
CON2
RED
RED
DC MOTOR
DRIVER MODLE
CON1
FAN1
3
3
M
4
CN1
CN15
CN34
DC FAN
Y/G
MAGNETIC
RING
CN13
M
PUMP
2
Y/G
18K and 24K
36K and 48K
18K and 24K
36K and 48K
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
1 2
ON
S1+S2
0~F
0~F
0~F
0~F
NETADDRESS
CODE
0~15
16~31
32~47
48~63
F A C T O R Y S E T T I N G
FOR SETTING NETADDRESS
INDOOR UNIT
MAINBOARD
16023000007021 WIRING DIAGRAM
DISPLAY
BOARD
WIRE
CONTROLLER
10
CN10
5
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
0
8
4
1 2
3
5
6
7
C
9A
B
D
E
F
ENC1
4
5
7
8
9
A
B
POWER
CODE
≤
53
54~71
72~90
91~105
106~140 141~160
≥
161
F A C T O R Y
S E T T I N G
ACCORDING TO RELATED MODEL.
FOR SETTING POWER(DC MOTOR MODEL ONLY)
1 2
ON
1 2
ON
1 2
ON
1 2
ON
SW1
TEL0
24
℃
15
℃
8
℃
EEPROM
DEFAULT
FACTORY
SETTING
FOR ANTI-COLD WIND
1 2
ON
1 2
ON
1 2
ON
1 2
ON
EEPROM
DEFAULT
FACTORY
SETTING
FOR TEMP. COMPENSATION(HEATING)
SW6
CODE
6
℃
2
℃
4
℃
RED
CN2
CN1
BLACK
1
ON
1
ON
FACTORY SETTING
FOR SETTING AUTO-RESTART
FOR SETTING AUTO-RESTART
SW3
MODE
AUTO-RESTART NOT AUTO-RESTART
T2
T1
CN6
4
BLACK
WHITE
T2B
CN7
INDOOR COIL OUTLET TEMP. SENSOR
INDOOR COIL TEMP. SENSOR
ROOM TEMP. SENSOR
Y/G
C
N
1
8
CN40
W
IR
E
C
O
N
T
R
O
L
L
E
R
4
CN5
WATER LEVEL SWITCH
CN9
X Y E
TO OUTDOOR
COMM.BUS
To CCM
Comm.Bus
S2
S1
CN20
HB HA
CN45
W
IR
E
C
O
N
T
R
O
L
L
E
R
MAGNETIC
RING
CN33
ALARM
ALARM
OUTPUT
J7
CN23
ON/OFF
REMOTE
CONTROL
CN43
FAN FOR THE
FRESH AIR
OR ANION
GENERATOR
NOTE:
1.The parts with dotted line indicates
optional features.
2.Remove the short connector of J7
when you use the "on-off" function.
1 2
ON
1 2
ON
1 2
ON
1 2
ON
FACTORY
SETTING
SW5
M O D E
MAIN
MAIN
SLAVE
M AIN
N O S LA V E
FOR M A I N - S LAVE SE T T I N G
L1 L2
Y/G
TO OUTDOOR UNIT
FOR OUTDOOR POWER SUPPLY
POWER
FAN
CAP
Y/G
WHITE
WHITE
(GRAY)
CN4
P1
P2
BLACK
BROWN
M
5
3
CN34
CN13
M
PUMP
2
Y/G
REACTOR
CON2
RED
RED
DC MOTOR
DRIVER MODLE
CON1
FAN1
3
3
4
CN1
CN15
FAN
M
3
Y/G
MAGNETIC
RING
MAGNETIC
RING
L1 L2
L1 L2
Summary of Contents for MEHSU-12CHD2
Page 30: ...Test Run Page 30...
