I'm running a duel fuel system up here in PA and just about ready to install a high end 98% York gas furnace system... running a heat pump down to 27 degrees. Do I need a bonnet sensor or something like that or does the York come with it? Anyone know much anout these Affinity systems?
I'm a GC but will probably need to bring in a mechanical but the guy I know doesnt know much about the York gas furnace systems because they need special training.
Any help would be much appreciated
Jimmy