Double-duct air conditioner or heat pump

means federally regulated air-cooled commercial package air conditioning and heating equipment that:

(1) is either a horizontal single package or split-system unit; or a vertical unit that consists of two components that may be shipped or installed either connected or split;

(2) is intended for indoor installation with ducting of outdoor air from the building exterior to and from the unit, as evidenced by the unit and/or all of its components being non-weatherized, including the absence of any marking (or listing) indicating compliance with UL 1995, “Heating and Cooling Equipment,” or any other equivalent requirements for outdoor use;

(3) if it is:

(A) a horizontal unit, a complete unit has a maximum height of 35 inches;

(B) a vertical unit, a complete unit has a maximum depth of 35 inches; and

(4) has a rated cooling capacity greater than or equal to 65,000 Btu/hour and up to 300,000 Btu/hour.