I have four HVAC systems, each with their own controller. On the controller there is a binary input to tell the unit whether to heat or cool. I would like to wire the the four controllers to a single switch but the installation manual says, "Controlling multiple Comfort Manager binary inputs from a single contact closure is not permitted." Is there a switch or relay that can get me around this restriction? In other words, is there a single switch with four independent circuits?
Thanks,
Clay
Thanks,
Clay