“Free cooling,” the process of allowing the building load to bypass mechanical cooling and exchange its heat with lower temperature outdoor air, is an environmentally favorable approach that helps reduce operating costs.
This technology harnesses the power of evaporation to lower ambient air temperatures entering Carrier’s 30XV chiller – helping to reduce chiller power consumption, increase reliability and extend the life of the chiller.
For new residential and light commercial central air conditioning equipment, the AHRI petition seeks a regulation requiring that equipment manufacturers use refrigerants with a global warming potential (GWP) of 750 or less in equipment made after Jan. 1, 2025, with the exception of variable refrigerant flow (VRF) equipment, whose deadline would be Jan. 1, 2026.
Building owners and specifiers can experience design flexibility, reduced operational costs, and reliable, energy-efficient comfort year-round with variable refrigerant flow (VRF) systems even in extreme cold climates.
The potential for CARB’s GWP limits and implementation dates to align with the EPA’s sector-based controls under the AIM Act create an environment in which a de facto nationwide HFC regulatory framework could actually emerge.