Carrier has released the second size range of its WeatherExpert™ Series, the company’s highest efficiency commercial rooftops. Models are available from 6- to 23-tons; adding to a current model line-up that includes 3- to 5-ton units. The WeatherExpert line has Integrated Energy Efficiency Ratio ratings up to 21.0. This exceeds the Consortium of Energy Efficiency tier II performance criteria, which many utilities use for rebates. The product line also meets or exceeds all current ASHRAE 90.1 - 2010 and Energy Star® energy requirements, with some models exceeding standards by more than 84%. Similar to other models in the Carrier Weather Series line, the company says the WeatherExpert 6- to 23- ton units were designed to maintain product familiarity by taking advantage of common parts from existing Carrier rooftop designs and were designed in collaboration with customers. Carrier also plans to release its 75- to 150-ton WeatherExpert units later this year. All WeatherExpert units feature Puron® refrigerant. The units are supported by Carrier’s eDesign Suite and integrate with Carrier’s i-Vu® system controls.