This Web site is brought to you by 44 Apple Street, Suite 3 | Tinton Falls, NJ 07724 | Call Significant efforts are being made to accelerate implementation of A2L and A3 alternative refrigerants. Global Warming Potential, or GWP, is a measure of how destructive a climate pollutant is. Therefore, it is very important that lower GWP refrigerants must have performance comparable to or higher than the HFCs currently in use.Opportunities for using new lower GWP refrigerant alternatives exist both in new and existing equipment. This change can be due to updated scientific estimates of the energy absorption or lifetime of the gases or to changing atmospheric concentrations of GHGs that result in a change in the energy absorption of 1 additional ton of a gas relative to another. Be advised that common replacements for R-22, such as R-404A and R-507A, have been identified by both California and the U.S. EPA for future restrictions because of their high GWP values and the availability of alternatives that pose a lower overall risk to human health and/or the environment. Ozone Depletion Potential (ODP) of a chemical compound is the relative amount of degradation it can cause to the ozone layer Current regulations allow for use of A2L and A3 refrigerants in small hermetically sealed systems, such as those in self-contained display merchandisers and window air conditioners.Existing equipment can be retrofit with a new lower GWP alternative provided the alternative has similar properties to the refrigerant being replaced, minimizing system modifications. The global warming potential (GWP) is a measure of the potency of a greenhouse gas relative to carbon dioxide (where carbon dioxide, by definition, has a GWP value of 1). Facility Executive offers a shared community of facility management experts who explore and analyze issues that affect your facility and its environment. range, for example, from 2 up to about 14,000. New low-GWP technologies and solutions are advancing rapidly and are available today. A low GWP value is only an indication of low impact from direct emission in theory. The HFC refrigerants commonly in use today have GWP values that are thousands of times larger than that of carbon dioxide. Retrofitting with A2L or A3 refrigerants is not permitted.Timely and cost-effective implementation of flammable refrigerants will be impeded without proper revision of relevant safety codes and standards. To compare with driving a car, this means that just one 30-lb tank of R-22 is more potent if released, than the CO                                                                       The most common replacement for R-22 in supermarket systems, R-404A, is more than twice as potent a greenhouse gas than R-22. The following is a list of refrigerants with their Type/Prefix, ASHRAE designated numbers, … These next-generation refrigerants and their blends are typically either non-flammable (ASHRAE safety classification 1) or have lower flammability (ASHRAE safety classification A2L).In an effort to determine the impact of new lower GWP alternative refrigerants on systems, the industry and various research organizations have been investigating the performance of these refrigerants in HVAC&R systems and components. Refrigerants today are often thousands of times more polluting than carbon dioxide (CO 2 ).

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