Petra to Introduce Energy Recovery Rooftop Package Unit
2019-12-25
At 2020 AHR Expo, Petra will introduce its energy recovery rooftop package units, including both air-cooled and water-cooled types, which meet ASHRAE’s standard for leading performance and exceed ANSI/ AHRI Standard 920 (I-P): Performance Rating of DX-Dedicated Out-door Air System (DOAS).
