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The ventilation system is wholly controlled by the airflow monitor. If there is no flow air in the room
after a designated duration of time, the system will activate the warning system so the user shall shut off
the system.
Devices Applied
z MC1 main contactor
z MC2 main contactor
z S0(NC contact) stop switch
z S1(NO contact) start switch
z S2(NO contact) air flow monitor
z S3(NO contact) air flow monitor
z H1operation indicator
z H2 alarm light
Wiring Diagram and Program with SG2 applied in Ventilation System.
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