Fire Damper Actuators Discussion ThreadFire Damper Actuators Electrical Advice
Hello
Working on a site with dampers fitted on the ducting which need fire shut offs connected to the fire panel via an actuator.
The actuators have 4 contacts “Damper Closed NO and NC” and “Damper Open NO and NC”.
Presuming they need a NC contact so the actuator operates and closes the damper when the alarm goes off but not sure which NC contact to utilise.
Any insight appreciated.
Thanks.
Fire Damper Actuators for the original thread on Electricians Forums
Hello
Working on a site with dampers fitted on the ducting which need fire shut offs connected to the fire panel via an actuator.
The actuators have 4 contacts “Damper Closed NO and NC” and “Damper Open NO and NC”.
Presuming they need a NC contact so the actuator operates and closes the damper when the alarm goes off but not sure which NC contact to utilise.
Any insight appreciated.
Thanks.
Fire Damper Actuators for the original thread on Electricians Forums
