Standard 621, Edition 7
UL 621

Standard for Ice Cream Makers

UL CSDS Proposal Edition 7 Published Date: May 15, 2015 Last Revision: September 16, 2020

Summary of Topics b0621_7_20150515_sum.html

Subject 621

Bulletin Dated: May 15, 2015


The following changes in requirements to the Standard for Ice Cream Makers, UL 621, are being proposed for preliminary review and comment only:

1. Revisions for general requirements regarding components

2. Revisions for specific requirements regarding components

3. Revisions for requirements regarding refrigerant tubing

4. Revisions to incorporate operating control, protective control parameter, and safety critical function requirements

5. Revisions for motor and motor overload protection requirements

6. Miscellaneous revisions including updated standard references, thermal equilibrium requirements, clarification of Table 31.2, and removal of R-22 references

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