This exam is required to be passed to obtain your State license. We stock all reference books in our online store. Shipping is always fast and affordable.
About This License
Residential HVAC work includes the installation, alteration, or retrofitting of fuel gas piping downstream of the gas meter, or fuel tank and fuel oil piping that is integral to work on an HVAC system for a single-family dwelling or a duplex dwelling not exceeding three stories; and warm air heating systems not exceeding 240,000 B.T.U./hour input. A mechanical administrator licensed in the residential HVAC category may supervise, in accordance with AS 08.40.400, the installation or retrofitting of all plug-in type electrical control panels and apparatus, and may supervise the retrofitting of all control wiring of 48 volts or less, in a residential single-family dwelling or a duplex dwelling not exceeding three stories so long as those modifications do not alter the electrical characteristics of the mechanical system or controls. The original installation of control wiring, or the alteration or retrofitting of controls and control wiring that alters the electrical characteristics of the mechanical system, must be supervised by an electrical administrator licensed in the appropriate category under 12 AAC 32.