First time poster. This isn't DIY per se, this is just a quick request for advice for somebody who's trying to save energy. Just moved to a new place and it came with a Honeywell FocusPRO 5000 (specifically, the TH5220D1003), which is non-programmable. Would a FocusPRO 6000 (specifically the 6220D) work in place of this unit without having to work on wiring and such?? I.e. just hot swap in the programmable model? If anyone could indulge me, I'd be very grateful.