Dayton mod.mbha-17j07suaa Electric furnace/air handler; Heat only therm. 2 wire red/white. Where does the WHITE wire from therm. connect?? I have the red wire from therm. connected to the red wire on the 24 volt trans-former. This is a used furnace I am trying to install in my sons trailer. The furnace has NO elect. board that is labeled W and R, that would be too easy!! This model is obsolete and I can not find any schematics for it. There is not one on the inside of the furnace,that would be too easy!!