It has come to the Board’s attention that some businesses are using comfort cooling equipment outside their operating envelope to act as refrigeration units. We asked the Department of Insurance if this was legal in North Carolina and received the following response:
The short answer is no, this is not in compliance with the NC Mechanical Code, and the section that code officials would primarily cite is NCMC Section 304.1, and Section 1101.2.
304.1 General. Equipment and appliances shall be installed as required by the terms of their approval, in accordance with the conditions of the listing, the manufacturer’s installation instructions and this code. Manufacturer’s installation instructions shall be available on the job site at the time of inspection.
1101.2 Factory-built equipment and appliances. Listed and labeled self-contained, factory-built equipment and appliances shall be tested in accordance with UL 207, 412, 471 or 1995. Such equipment and appliances are deemed to meet the design, manufacture and factory test requirements of this code if installed in accordance with their listing and the manufacturer’s installation instructions.
The aftermarket controls and devices that force the comfort-cooling unit to cool to a lower temperature it was designed for is not in compliance with the manufacturer’s installation instructions.