UL 427:2017

$98.80

Standard for Refrigerating Units

Published By	Publication Date	Number of Pages
UL	2017-02-10	119

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Category: UL

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Description

1 Scope

1.1 These requirements cover refrigerating units intended for connection in accordance with the National Electrical Code, NFPA 70, to alternating-current (ac) circuits rated not greater than 600 volts.

1.2 This standard also covers component refrigeration systems (self-contained mechanical refrigeration systems), not already covered by a UL standard, that heat, cool or dehumidify as integral (not stand-alone) components of appliances.

1.3 Refrigerating units covered by these requirements employ sealed, hermetic-type motor compressors, and air- or water-cooled condensers.

1.4 These requirements do not cover equipment intended for comfort cooling.

Additional information