An Unlimited Refrigeration Mechanical Administrator 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 WWW.PSIEXAMS.COM 13 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.
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The book set includes all required references for the Unlimited Refrigeration Mechanical Administrator trade exam. Books that are not allowed in the testing center are still neded to study from because you WILL be tested on them. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.