Guidelines For Using R 452a
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GUIDELINES FOR USING R-452A AND R-448A/R-449A
www.tecumseh.comGuidelines for using R-452A and R-448A/R-449A in new and existing commercial refrigeration systems 1. R-452A and R-448A/R -449A refrigerants context Tecumseh Products Company does not recommend the retrofit of existing refrigeration systems that are operating leak free. If the system is not leaking refrigerant to the atmosphere, and is ...
An introduction to A2L refrigerants and their use in ...
www.refcom.org.ukSome large chillers are now using R-1234ze as an alternative to R-134a. R-1234ze is an HFO and is classified as A2L, but, as previously noted, it is actually non-flammable at temperatures below 300C. R-1234yf is a closer match to the performance of …
PRESSURE TEMPERATURE CHART - URI.com
www.uri.comR-1234yf belongs to a new family of HFOs (hydro-fluoro-olefins) that have a low GWP. R-1234yf is intended for automotive air conditioning systems, some other R-134a applications, and it is a component in some HFC blends to help lower the overall GWP. This product is mildly flammable, but has been deemed safe by itself in new automotive systems.