Sinclair SDV5 Series Service Manual page 35

Figure 5-1.3: the view of 140/160 model electric control box
DC fan control
module
IPM module
PFC module
Power input and
filter assembly
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
34
Main control board
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
Switch power supply
Communication terminals
Power input terminals
Content
Filter board
Port voltage
AC 220V
DC5V-0V
0V or 5V DC
AC 220V
Above 36V
DC5V