Johnson Controls, Milwaukee, Wisconsin, unveiled its 15 to27.5 ton Choice Rooftop Unit, providing up to 23 per cent greater part-load efficiency. Choice Rooftop Units feature a broad range of outdoor air options, including low-leak damper economizers, constant volume powered exhaust, modulating powered exhaust, and a wide range of gas heat options, including full modulating gas heat with a 2.85 to one turndown ratio.
Choice Rooftop Units exceed Department of Energy (DOE) 2018 guidelines up to 25 per cent and already surpasses future DOE 2023 part-load standards by almost 10 per cent.