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5.1 Typical Wiring Diagram with Optional Relay Interface Unit
Optional Relay Interface Unit in ABS enclosure mounted on top of Fume Cupboard to
allow up to 3 external cable connections to be terminated.
Rated at 240V 5A
Flying lead with plug
connection for PCB and
Relay Interface Unit
Adaptor PCB connected to Main PCB
terminals and provided with RJ45 socket for
plug in connection to Relay Interface Unit .
Flying lead with plug
connection for PCB
and SM6 airflow sensor
12V DC
Flying lead from Proxy
switch with plug
connection for PCB
12V DC
Sash High
Proximity switch
( Optional )
SM6
Airflow Sensor
R1
R2
R3
SENSOR
SOCKET
0-10V
ECON
OUTPUT
15V DC
POWER
SUPPLY
INPUT
0-10V
AUX.
OUTPUT
s/w
Sash Proximity
switch
OUTPUT RELAYS
COMMS
PORT
RELAY INPUTS
INPUT 1
INPUT 2
INPUT 3