UL 412 PDF
Price range: $90.90 through $181.80
Refrigeration Unit Coolers
1 Scope
1.1 These requirements cover unit coolers intended for use in refrigerators, freezers, refrigerated warehouses, walk-in coolers, and the 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 for comfort cooling, heating, or both, or to other air-conditioning equipment or components covered by individual requirements.
1.3 Requirements for installation of unit coolers are included in the National Electrical Code, NFPA 70, and the Safety Standard for Refrigeration Systems, ASHRAE Standard 15.
Summary of Topics
This revision of UL 412 dated June 14, 2022 is being issued to remove the ANSI logo and approval from the title page.
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