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Standard 412, Edition 5

Standard for Refrigeration Unit Coolers

UL CSDS Proposal
Standard 412, Edition 5 Edition Date: April 27, 2012
Summary of Topics b0412_5_20120427_sum.html

Subject 412

Bulletin Dated: April 27, 2012


The following changes in requirements to the Standard for Refrigeration Unit Coolers, UL 412, are being proposed:

1. Clarifications to Table 48.1, Tests on Nonmetallic Materials

2. Clarifications to Section 71, Production Line Pressure Test

3. Proposed addition to clarify temperature measurement stability requirements, revisions to clarify the dielectric voltage-withstand potential for extra-low-voltage circuits, clarification of refrigerant designation marking requirements

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