I'm building a fermentation chamber using a 110 v. window a/c unit for cooling and a heating pad for the heat. I'm using a 110 v. STC 1000 dual channel controller and because of the higher current draw of the a/c unit I'm adding a contactor. I found a wiring diagram online and modified it account for the contactor. I have had no luck in getting it to work. I'm a newby on this forum so I'm going to try to attach a diagram of how I've wired it.
There is one connection I'm not sure of and that is the where or if I need to run the neutral leg on the load side of the contactor.
There is one connection I'm not sure of and that is the where or if I need to run the neutral leg on the load side of the contactor.