Midea ODMFI-E-2110

40
PCB board of M2OA-18HFN1-M
No.
Name
CN#
Meaning
1
Power Supply
CN11
L_in: connect to N-line (208-230V AC input)
CN12
N_in: connect to L-line (208-230V AC input)
2
Electronic
Expansion
valve
CN4
connect to Electric Expansion Valve A
CN2
connect to Electric Expansion Valve B
CN34
connect to Electric Expansion Valve C
CN5
connect to Electric Expansion Valve D
3
S-A
CN10
S: connect to indoor unit communication(pin1-pin2: 24VDC Pulse wave;
pin2-pin3: 208-230V AC input)
S-B
CN13
S-C
CN3
S-D
CN15
4
HEAT_D
CN21/CN36
connect to chassis heater, 208-230V AC when is ON
5
4-way
CN38
connect to 4 way valve, 208-230V AC when is ON.
6
HEAT_Y
CN8/CN20
connect to compressor heater, 208-230V AC when is ON
7
T2B
CN28
connect to evaporator coil outlet temperature sensor T2B