What do all those air conditioner and heat pump ratings mean?
The AHRI directory (your directory assistance of heating and cooling) contains rated values for air conditioners and heat pumps. These explain how a “split system,” which is an outdoor unit matched with an indoor unit and/or furnace. The AHRI Directory of Certified Product Performance provides information for all models still being sold, including those currently in production (“active”) and those that are no longer currently in production but are still available (“discontinued” or “production stopped”).