Generator damper control

L

Thread Starter

Luap

How can I change a normally open ep switch that powers a damper from a thermostat in a normal condition. When the room calls for cooling the pressure rises causing the pressure switch to power the ep switch and exhaust fan motor and causes the damper to open. With the new electric damper that voltage will open the damper but upon a power failure how can I get that damper to open keeping in mind that the damper only opens with power. Any ideas using a relay or other ideas would be helpful.
 
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