Alaska Administrative Code
Title 12 - Professional Regulations
Part 1 - Boards and Commissions Subject to Centralized Licensing
Chapter 39 - Mechanical Administrators
Article 2 - Mechanical Administrator License Categories, Qualifications, and Scope
12 AAC 39.272 - Scope of a mechanical administrator license in the unlimited refrigeration category

(a) The holder of a mechanical administrator license in the unlimited refrigeration category may supervise, in accordance with AS 08.40.400, the installation, alteration, or retrofitting of refrigeration and air conditioning equipment and systems, unlimited as to thermal capacity or type of refrigerant, including the installation of domestic water piping from an existing valved connection to the system, tower and condensing water piping, and chilled water piping. Work under this category is limited to the refrigerant cycle, controls, and related appurtenances.

(b) A mechanical administrator licensed in the unlimited refrigeration category may supervise, in accordance with AS 08.40.400, the installation or retrofitting of all pneumatic or electric controls and the retrofitting of all control wiring of 48 volts or less necessary for the operation of refrigeration systems 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.