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Retrofit Cutout Switch Requirement Clarification Request
Posted to HVAC Forum on 5/18/2001 4 Replies

NetChillers:

Some questions regarding the legal requirements for installing a High-Pressure Cutout Switch (HPCOS) when doing a retrofit from R-12 to R-134a. As I understand it, U.S. EPA regulations do NOT require a factory-installed R-12 system to have any k... Login to read more.

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