I just got sold a Rheem unit, and the sales person said that it was a 15.1 SEER (details on contract are model 14AJM36A01 air conditioner and RCFC-HM3617AC evaporator coil). The installers arrived today and the side of the unit says 14.5 SEER. The installer (and the sales guy when I called him) both said that the matching coil makes it 15.1 SEER. Is this correct or am I being told mis-information. I'm pretty hesitant because I've been told some bad information by others in the past, so I'm hoping I'm just being paranoid here. Thanks VERY much in advance for any answers.