Midea Mini C Series Service Manual page 38

2 Outdoor Unit Main PCB
2.1 Ports
Figure 5-1.1: 80 model outdoor unit main PCB ports
Notes:
1. Label descriptions are given in Table 5-1.1.
Table 5-1.1: 80 model main PCB ports
Label in
Port code
Figure 5-1.1
1
2
3
4
5
6 485 Com. port
CN1 Power output N wire, connect to module board
CN8 Connect to refrigerant cooling tube TL temperature sensor
CN18 Connect to low pressure switch
CN20 Compressor crankcase heater
Black, high voltage above 36V,electric current loop communication port,
CN2
connect to communicate converter board
PQE/XYE connecter
Mini C Series VRF 50/60Hz
Content Port voltage
AC 220V
DC5V-0V
0V or 5V DC
AC 220V
Above 36V
DC 5V
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