Specifications include, but are not limited to: MSRP - CENTRAL HEATING and AIR CONDITIONING SYSTEM, COMPLETE : 115-651: Contractor to calculate the proper size of all HVAC equipment and materials. Install/Replace a Central HVAC system with a properly sized, high efficiency (14 SEER),Central heating and air conditioning unit per specifications. All permits, duct sheet & inspection form, green tag. Installation to include removal of existing system and all its components and to be replaced with new parts and equipment to. Enter tonnage of unit as units of measure. All materials and/or equipment demolished or repaired are considered salvage and belong to the General Contractor for use or disposal. Comments: Approx. 430 sq.ft. per ton.