Commercial Rental Building New HVAC Depreciation

Using Desktop H & B the choices to enter a new depreciable asset, a replacement HVAC system (gas furnace and outdoor AC unit) are skimpy, none mentioning HVAC equipment. 

The initial choices are (1) Rental Real Estate Property (which takes it to several choices, none of which mention HVAC) (2) Computer Video, Photo & Telephone Equipment, none of which are applicable (3) Tools, Machinery & Furniture, none of which appear to be applicable and (4) Intangibles, which surely isn't right. 

As this is a commercial building and the new HVAC is replacing a 1999 system, which is the right entry to start with and take it through? For a program that is supposed to offer extra help for rental properties this is lacking.