central air conditioner
(21) The term “central air conditioner” means a product, other than a packaged terminal air conditioner, which— (A) is powered by single phase electric current; (B) is air-cooled; (C) is rated below 65,000 Btu per hour; (D) is not contained within the same cabinet as a furnace the rated capacity of which is above 225,000 Btu per hour; and (E) is a heat pump or a cooling only unit.