Sinclair SDV 6 Service Manual page 62

Figure 1 Schematic diagram of the R32 refrigerant leakage detection system
1-1: Common terminal
2-2: Sending R32 refrigerant leakage signal
Connecting an
3-3: Sending sensor module fault signal
alarm or a fan
1-1/2-2/3-3
AC220V
three-core communication cable
output
(configured on site)
S1 button
Buzzer
Adapter board
Ten-core communication
cable
(configured by factory)
UART protocol
AC220V input R32 sensor module
IDU main
Control board for R32 refrigerant detection device
control board
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