This new refrigerant meets Environmental Protection Agency's anticipated Global Warming Potential limits for refrigerants and the scheduled phasedown of GWP refrigerants like R-410A..
The Environmental Protection Agency plans to limit GWP of refrigerants to maximum of 700 starting in 2025.
At the time, EPA is implementing phasedown of existing, GWP refrigerants, including R-410A..
Beginning January 1, 2025, EPA will no longer allow manufactures to build residential ducted and HVAC using R-410A refrigerant.
R-454B meets and exceeds the requirement with GWP of 466 and is 75% reduction GWP compared to R-410A..
And if you look closely, you'll see the transitions from R-12 to R-22 and to R-410A were focused on reducing ozone depletion.
Switching from R-410A to GWP refrigerant has been bit more complicated due to the lack of available options that did not require refrigerant with higher flame propagation...
Now, with the change from R-410A to R-454B, the focus has been to reduce global warming potential, while maintaining no ozone depletion.
R-12, R-22 and R-410A all fall into A1 classification of refrigerants which have no flame propagation to R-454B falls into A2L.
When activated, the sensor sends signal to the dissipation board, which energizes blower to dissipate the refrigerant into the air stream.
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