Midea 18K Installation Manual page 39

• Wiring for 3H and 2C thermostat:
W1/E
O/B
Y2
Y1
G
L
C
R
DH
THERMOSTAT
S4-1 DIP switch off
Perform disconnection and
short-circuit to achieve
partition, control or dehumidification
• Wiring for 2H and 2C thermostat:
O/B
Y2
Y1
G
C
R
THERMOSTAT
• Wiring for 2H and 1C thermostat:
W/E
O/B
Y
G
C
R
THERMOSTAT
C
DH R L G Y1 B W
INDOOR UNIT
R C L G B W
DH Y1
INDOOR UNIT
R C L G B W
DH Y1
INDOOR UNIT
R C Y1 Y2
W1 W2 E
S4-2 DIP switch off
Disconnect and short
circuit to realize heating
segment
E R C Y1 Y2
W1 W2
OUTDOOR UNIT
E R C Y1 Y2
W1 W2
OUTDOOR UNIT
S4-2 DIP switch off
Disconnect and short
circuit to realize heating
segment
B W D L
B W D L
B W D L
 Page 39 