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ASHRAE Publishes Safety Standard

June 18, 2007
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ATLANTA - Expanded requirements for safety relief protection are contained in the American Society of Heating, Refrigerating and Air-Conditioning Engineer’s (ASHRAE’s) new 2007 refrigeration systems safety standard. ANSI/ASHRAE Standard 15-2007, Safety Standard for Refrigeration Systems, establishes procedures for operating equipment and systems to ensure the safety of building occupants and system technicians.

According to ASHRAE, expanded requirements for safety relief protection, piped internally to systems, is a significant change over the 2004 standard.

“In the interest of keeping refrigerants contained within a refrigeration system, a growing number of designers sought to implement pressure relief protection that discharged overpressure refrigerants to a lower pressure portion of the system,” said Douglas Reindl, committee chair. “This change is intended to guard safety in these applications by expanding requirements for the engineering of internal relief devices.”

Another change is the update of Appendix F, which outlines the principles of relief device selection for positive displacement compressors. The list of refrigerants with corresponding properties included in the appendix has been significantly expanded. “This will help users enhance the safety of refrigeration systems by utilizing improved methods for pressure relief protection,” said Reindl.

For more information, visit www.ashrae.org.

Publication date: 06/18/2007

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