Anyone familiar with Nortek products/ I'm trying to find out if a Nortek(Nordyne) coil Model REPLCOIL01M also goes by number 921482 is a heat pump coil or just straight a/c .Also the tonnage .I believe it is 2-3 tons,depending on the size piston used.thanks to anyone with info on this coil. This coil is on a heat pump ,acting like its not the right evaporations coil.