Visitors discuss Petra air-cooled screw/scroll chiller APSG 100-2

Photo: Mariusz Młynarczyk / CloudAir.tech

Visitors stand beside a Petra chiller whose panel reads "Air-cooled Screw / Scroll Chiller (APSG 100-2/ PSC4 70)" with a list of features. The white casing with perforated lower guards fills the right of the frame, with a Petra pillar overhead.