Gaffen99
Senior Member
- Location
- new jersey
I looked at a job to change existing roof top A/C units, the 24 volt control is penetrating the roof to the unit in the same conduit. The line voltage is 480/277, now if the control is run as thhn, is this OK? What if it is standard 18/5 stat wire? What class does this fall under, the low volt control I mean?
Thanks
Thanks