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.
Mitsubishi Electric updated its variable refrigerant flow WR2- and WY-Series Modular Water Source Units. Both the WR2- (heat recovery) and WY-Series (heat pump) are available in smaller and lighter units with plate type heat exchangers, and both systems operate in either cooling or heating modes.