Ecoer EAHAEC-36 - Page 56

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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Connection method B:
To use a 24V thermostat, you need to refer to the following wiring:
R C G Y1 Y2 B W W1W2E DH L
24V thermostat
R C Y1 Y2 B W D L
Outdoor Unit
S1 S2
S1 S2
Indoor unit
R C G Y1 Y2 B W W1W2 E DH L
NOTE: The wiring method of the thermostat and the indoor unit refers to the wiring of the non- communication
scheme.
Connection method C:
Non-communication scheme wiring reference
• Wiring for 3H and 1C thermostat
S4-2 DIP switch off
Perform disconnection and
short-circuit to achieve
partition, control or dehumidi cation
S4-1 DIP switch off Disconnect and short
circuit to realize heating segment
DH R C L G Y1
B W W1 W2 E
R C Y1 Y2 B W D L
INDOOR UNIT
OUTDOOR UNIT
O/B
W2
Y
G
L
C
R
DH
W1/E
THERMOSTAT
• Wiring for 3H and 2C thermostat
S4-2 DIP switch off
Perform disconnection and
short-circuit to achieve
partition, control or dehumidification
Emergency heating control two groups
of electric heating at the same time
DH R C L G Y1
B W W1 W2 E
R C Y1 Y2 B W D L
INDOOR UNIT
O/B
Y2
Y1
G
L
C
R
DH
E
THERMOSTAT
OUTDOOR UNIT
• Wiring for 3H and 2C thermostat
S4-2 DIP switch off
Perform disconnection and
short-circuit to achieve
partition, control or dehumidification
S4-1 DIP switch off Disconnect and short
circuit to realize heating segment
DH R C L G Y1
B W W1 W2 E
R C Y1 Y2 B W D L
INDOOR UNIT
O/B
Y2
Y1
G
L
C
R
DH
W1/E
THERMOSTAT
• Wiring for 2H and 2C thermostat
DH R C L G Y1 B W W1 W2 E
INDOOR UNIT
R C Y1 Y2 B W D L
OUTDOOR UNIT
O/B
Y2
Y1
G
C
R
THERMOSTAT
W/E
O/B
Y
G
C
R
• Wiring for 2H and 1C thermostat
S4-1 DIP switch o Disconnect and short
circuit to realize heating segment
DH R C L G Y1 B W W1 W2 E
R
C
INDOOR UNIT
Y1 Y2 B W D L
OUTDOOR UNIT
THERMOSTAT
DH R
C
L G Y1 B W W1 W2 E
R C Y1
Y2
B W D L
INDOOR UNIT
OUTDOOR UNIT
DH
R
W2
W1/E
O/B
Y2
Y1
G
L
C
THERMOSTAT
S4-2 DIP switch off
Perform disconnection and
short-circuit to achieve
S4-1 DIP switch off Disconnect and
short circuit to realize heating
partition, control or dehumidification segment
• Wiring for 3H and 1C thermostat