Ferroli OMNIA M 3.2 Installation And Owner's Manual page 124

9.3.2 1-phase for 4-16kW units
1) PCB A 4-10kW Inverter module
Remarks: for 4-6kw, two capacitors
9
8
Coding Assembly unit
1 Compressor connection port U
2 Compressor connection port V
3 Compressor connection port W
4 Output port for +12V/9V(CN20)
5 Port for fan(CN19)
2) PCB A 12-16kW Inverter module
CN502
CN501
10 9
Coding Assembly unit
1 Compressor connection port U
2 Compressor connection port V
3 Compressor connection port W
4
Port for fan(CN19)
5 Output port for +12V/9V(CN20)
1 2 3
CN20
4
5
7 6
Coding
6 Reserved(CN302)
7 Port for communication with PCB B(CN32)
8 Input port N for rectifier bridge(CN502)
9 Input port L for rectifier bridge(CN501)
/
1 2 3 4
CN19
CN6
8
Coding
6
Port for communication with PCB B(CN32)
7 Port for high pressure switch (CN23)
8 Reserved(CN6)
9
Input port L for rectifier bridge(CN501)
10
Input port N for rectifier bridge(CN502)
25
Assembly unit
/
CN20
5
CN32
6
7
CN23
Assembly unit