UL 412 Refrigeration Unit Coolers

standard by Underwriters Laboratories, 11/16/2001

Full Description

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1.1 These requirements cover unit coolers intended for use inrefrigerators, freezers, refrigerated warehouses, walk-in coolers, andthe like. They are designed for connection to alternating current (ac)circuits rated not more than 600 volts.

1.2 These requirements do not apply to fan-coil units intended forcomfort cooling, heating, or both, or to other air-conditioning equipmentor components covered by individual requirements.

1.3 Requirements for installation of unit coolers are included in theNational Electrical Code, NFPA 70, and the Safety Code forMechanical Refrigeration, ASHRAE 15.

1.4 A product that contains features, characteristics, components,materials, or systems new or different from those in use when thestandard was developed, and that involves a risk of fire, electric shock,or injury to persons, shall be evaluated using the appropriate additionalcomponent and end-product requirements as determined necessary tomaintain the level of safety for the user of the product as originallyanticipated by the intent of this standard.

Product Details

Edition: 3rd Published: 11/16/2001