Date - July 17, 2013
SUMMARY OF REQUIREMENTS
FOR
(Standard No - 207,Edition - 8th, Issue: 2009/4/20, Revision: 2014/06/13 )
(Standard Title- Refrigerant-Containing Components and Accessories, Nonelectrical)
This document is derived from the following Standard Development Organization (SDO) bulletin(s) or other documentation publicly available to UL subscribers:
Standard Development Organization (SDO) / Document Type(proposal, bulletin, etc) / Document Designation / Date
UL / Bulletin / Subject 207 / Jan 27, 2012
UL / Bulletin / Subject 207 / Jun 15, 2012
Primary motivator for the Standards revision / New Technology and Updates to Include Additional Constructions
CCNs Impacted / SKXY/2; SLPR/2; SLRG; SLSV/2; SMGT/2; SMUR/2; SEHU; SNHZ/2; SNLT/2; SEYW/2; SNOY/2; SNVX; SOJV/2; SOMU; SDTW/2; SFAU2; SROT/2; SFCS2; SFJQ/2
The following is a summary of the revised/new certification requirements.
Action is Not Required for current certified products and the new/revised certification requirements will be applied in evaluation of the new and revised products effective June 4, 2015.
Section Paragraph Clause / Summary of requirements /6.2 / This new clause requires a heat exchanger intended for connection to a potable (drinkable) water source to have a double wall (e.g., redundant or vented interface) construction. In addition, a marking is required on such heat exchangers. See comments under Clause 23.2 below.
6.3 / Heat exchangers with a single wall (e.g., that do not have a double wall, redundant or vented interface) construction are not to be intended for connection to a potable (drinkable) water supply source. In addition, a marking is required on such heat exchangers. See comments under Clause 23.3 below.
6.4, 6.5 & 12.4.1 / These requirements apply to heat exchangers intended for connection to a potable water source and having a vented interface. Such products are required to be subjected to the vented interface test. Also, the vented interface is required to withstand a pressure of not less than 1-1/2 times the maximum rated design pressure of the refrigerant side.
12.1.3 / This requirement applies to all heat exchangers where the high-side parts are intended for connection to the refrigerant high-pressure side and the other side is intended for connection to a water supply source. This clause requires the test referenced in Clause 12.1.2 to be conducted with the water side maintained at atmospheric pressure. Heat exchangers in which the test was previously conducted with the pressure in the water side of the heat exchanger held at other than atmospheric pressure may need to be re-tested.
12.2.3.1 & 12.3.2 / These requirements apply to all heat exchangers where the high-side parts are intended for connection to the refrigerant high-pressure side and the other side is intended for connection to the refrigerant low-side pressure or a water supply source. This clause requires the tests referenced in Clauses 12.2.2 or 12.2.3 to be conducted with the side intended for connection to the refrigerant high-side pressure to be maintained at atmospheric pressure. Heat exchangers in which the test was previously conducted with the pressure in the high-side of the heat exchanger held at other than atmospheric pressure may need to be re-tested.
23.1(a) / This clause applies to heat exchangers or other components intended for connection to a water source and requires the water side design pressure to be marked on the component.
23.2 / The marking referenced in this new clause is applicable to all double wall heat exchangers intended for connection to a potable water supply source.
23.3 / The marking referenced in this new clause is applicable to all heat exchangers (of a single rather than double wall construction) that are not intended for connection to a potable water supply source.