1.1 These requirements cover self-contained drinking-water coolers which employ hermetic refrigerant
motor-compressors and which are designed for connection to alternating-current circuits rated not greater
than 600 volts in accordance with the National Electrical Code, NFPA 70. The requirements also apply to
water coolers which supply both hot and cold water.
1.2 These requirements do not include additional requirements applicable to equipment designed for use
in hazardous locations as defined in the National Electrical Code, NFPA 70.
1.3 A product that contains features, characteristics, components, materials, or systems new or different
from those covered by the requirements in this standard, and that involves a risk of fire, electric shock, or
injury to persons shall be evaluated using the appropriate additional component and end-product
requirements as determined necessary to maintain the acceptable level of safety as originally anticipated
by the intent of this standard. A product whose features, characteristics, components, materials, or
systems conflict with specific requirements or provisions of this standard cannot be judged to comply with
this standard. Where considered appropriate, revision of requirements shall be proposed and adopted in
conformance with the methods employed for development, revision, and implementation of this standard.
2018UL 399 BULLETIN-2018 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: FEBRUARY 28th@ 2018)
2017UL 399-2017 UL Standard for Safety Drinking Water Coolers (Eighth Edition; Reprint with Revisions Through and Including May 17@ 2017)
2016UL 399 BULLETIN-2016 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: DECEMBER 19@ 2016)
2015UL 399 BULLETIN-2015 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: December 21@ 2015)
2013UL 399 BULLETIN-2013 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: August 12@ 2013)
2011UL 399 BULLETIN-2011 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: January 02@ 2012)
2010UL 399 BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for Drinking Water Coolers, UL 399, are being proposed for preliminary review and comment only: 1. For Preliminary Review Only: Revision to paragraph 10.3.7 to address cord length
2009UL 399 BULLETIN-2009 UL Standard for Safety Drinking Water Coolers (COMMENTS DUE: July 06@ 2009)