Low Gwp Refrigerant Pdf

Refrigerant charges typically range from 1 45 lbs.

Low gwp refrigerant pdf.

Hfo 1234ze is the only medium pressure ultra low gwp alternative without an efficiency tradeoff high efficiency at full load and extraordinarily high efficiency at part load conditions oil free avoids challenges refrigerant. Common low gwp refrigerants refrigerant name trade or common name global warming potential r 744 co2 1 r 290 propane 4 r 600a isobutane 5 r 1234yf hfo 1234yf 4 r 1234ze hfo 1234ze 1 r 152a hfc 152a 124. Temperature pressure density thermal capacity p h diagram t t t differences between low gwp refrigerants and hfcs t t t toxicity characteristics grades and limits for 3. Most often contain hfc 134a or r 404a although other hfc blends are also used e g r 407a r 407f r 507a while research on low gwp refrigerants is ongoing.

R410a and r134a are not being banned. Greenhouse gases with gwp of 150 or more except in the primary refrigerant circuit of cascade systems where fluorinated greenhouse gases with a gwp of less than 1500 may be used 1 january 2022 12. Why should i stop using them. Transitioning to low gwp alternatives in commercial refrigeration centralized direct expansion dx where refrigerant is circulated directly from a central machinery room to the display cases in the sales area.

Research development roadmap for next generation low global warming potential refrigerants w. Movable room air more. Refrigerant regulatory landscape low global warming potential gwp refrigerants including the new a2l safety category technical research and development informing the standards safety standard upgrades for flammable.