How to make window AC interlock for fan Answered
My house is set up like a horseshoe, with the tenants stairway isolating each tip. I have a large window AC unit that cools the common space, and i want to add a duct fan that circulates the air from tip to tip. The AC is in the center of the horseshoe.
I want the fan to turn on automatically when the AC unit is on. How can I accomplish this?
I know that i could open the ac unit up and splice into power wires that are only hot when the unit is running, and then use that as the control voltage on a relay... However, I was hoping to find an external solution.
My next thought was some sort of current switch that plugs between the AC cord and the wall outlet, and a receiver unit on the fan.
So far my search queries haven't turned up anything.