instaling North Carolina residential appliance installer license prep class

A heating system requiring air distribution ducts and supplied by ground water or utilizing a coil supplied by water from a domestic hot water heater not exceeding 150 degrees Fahrenheit requires either plumbing or heating group number one license to extend piping from valved connections in the domestic hot water system to the heating coil and requires either heating group number one or heating group number three license for installation of coil, duct work, controls, drains and related appurtenances. (4) The phrase 'heating, group number three' shall be deemed and held to be a direct heating or cooling system of a building that raises or lowers the temperature of the space within the building for the purpose of comfort in which electric heating elements or products of combustion exchange heat either directly with the building supply air or indirectly through a heat exchanger using an air distribution system of ducts and having a mechanical refrigeration capacity of 15 tons or less. Holders of a heating group number three license who have heretofore installed systems classified as heating group number two systems may nevertheless service, replace, or make alterations to those installed systems until June 30, 2004. Systems installed in single‑family residences are included under heating group number three, regardless of size. (3) The phrase 'heating, group number two' means an integral system for heating or cooling a building consisting of an assemblage of interacting components producing conditioned air to raise or lower the temperature, and having a mechanical refrigeration capacity in excess of fifteen tons, and which circulates air.

(2) The phrase 'heating, group number one' shall be deemed and held to be the heating system of a building, which requires the use of high or low pressure steam, vapor or hot water, including all piping, ducts, and mechanical equipment appurtenant thereto, within, adjacent to or connected with a building, for comfort heating. (1) The word 'plumbing' is hereby defined to be the system of pipes, fixtures, apparatus and appurtenances, installed upon the premises, or in a building, to supply water thereto and to convey sewage or other waste therefrom. Definitions contractors licensed by Board examination posting license, etc.

Instaling North Carolina residential appliance installer license prep class