Midea ATOM B Series - Page 36

Atom B Series VRF 50/60Hz
35
Part 5
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Electrical Components and Wiring Diagrams
2 Outdoor Unit Main PCB
2.1 Ports
Figure 5-2.1: 28 model outdoor unit main PCB ports
Table 5-2.1: 28 model main PCB ports
Label in
Figure 5-1.1
Port code
Content
Port voltage
1
CN6/CN6-1
Earth
0V
2
CN7
Power input
AC 220V
3
CN8
Power input
AC 220V
4
CN60
Four way valve
AC 220V
5
CN16
Reserved
/
6
CN18
Electronic expansion valve port
Pin 1: DC12V;
Other pins:
Dynamic
change
7
CN414
Fan motor port
DC 240-350V
8
CN30
Main board communication converter board communication port
DC 0-5V
9
CN5
Communication port between outdoor unit and indoor units;
Energy meter communication port
DC 2.5-5V
10
CN507
Chip burning port
DC 5V
11
U/V/W
Compressor U/V/W output
DC 240-350V