noeernlat
Member
- Location
- Washington State
Well I wired my first commercial fire suppression system and I have an inspection tomorrow. Here is what I did and you knowledged folks tell me if I should be worried. I have a 220 V exhaust, 120V Make up air and 120V hood lights. I got 3 NO contactors, 1 NO micro switch, 1NC micro switch, and a common. So I ran a 120v control circuit to a Two pole switch that switches the exh and mua, the mua runs to the single NO micro switch and from there to the NO contactor. The ex runs straight from the 2 pole switch to the contactor. I have a single pole switch for the hood lights and the same 120V control circuit powers it , then runs to the same micro switch NO (there is only one NO micro switch) which then goes to the contactor. I can't seem to understand how when the system is activated, it will shut down lights, mua, but leave the exh running. Any insight would be greatly appreciated. Thank you.