EFFECTIVE January 1, 2025

Phase out of R-410A refrigerant to convert to R-454B refrigerant.What is R-454B? R-454B refrigerant is one of the new refrigerants that are replacing R-410A in all residential and light commercial applications. R-454B is a blend of refrigerants designed to provide efficient cooling while minimizing environmental impact. It is composed of hydrofluoroolefin (HFO) and hydrofluorocarbon (HFC) compounds, which work together to create a reliable and effective refrigerant. A key property of R-454B refrigerant is its low global warming potential (GWP). Compared to older refrigerants, R-454B has a significantly lower GWP, meaning it has a reduced impact on climate change. This makes it a more sustainable choice for HVAC systems, aligning with the growing focus on environmental responsibility. Overall, R-454B refrigerant provides a reliable and sustainable solution for HVAC systems. Its composition, properties, and benefits make it an excellent choice for residential and light commercial applications, delivering efficient cooling with reduced environmental impact.

SEER/SEER2 And HSPF/HSPF2 SEER2 is an updated rating standard introduced by the DOE. SEER2 standards are intended to provide a better gauge of typical home operating conditions whereas the older SEER rating utilized very precise protocols to determine ratings in ideal conditions. SEER2 standards include updated testing means that give a better indication of how a unit will operate in the real world. HSPF2 is the newest type of rating system that expands on the basic HSPF scale. Much like miles-per-gallon for a car, SEER/SEER2, EER/EER2, AFUE and HSPF/HSPF2 offer an easy way to compare efficiencies of different products – the higher the rating, the more efficient the unit. Just be sure you are comparing either SEER vs SEER or SEER2 vs SEER2 (same for EER/EER2 and HSPF/HSPF2). EER2 versus SEER2 EER2 and SEER2 both evaluate an air conditioner’s energy efficiency, but they’re concerned with two different types of temperature conditions: EER2 measures an air conditioner’s efficiency at the peak cooling temperature of 95°F. SEER2 measures an air conditioner’s efficiency throughout an entire cooling season, with temperatures ranging from 65°F to 104°F. The DOE’s regional breakdown by state is as follows: North 15.0 SEER/ 14.3 SEER2 8.0 HSPF/6.7 HSPF2 90% AFUE Southeast 14.0 SEER/ 13.4 SEER2 8.0 HSPF/6.7 HSPF2 80% AFUE Southwest 14.0 SEER/ 13.4 SEER2 8.0 HSPF/6.7 HSPF2 80% AFUE

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