Doppel Cooling control cabinet for R290 propane heat pumps, doors open

Photo: Mariusz Młynarczyk / CloudAir.tech

A Doppel Cooling control cabinet marked "R290 Propan" stands with its doors open, showing the switchgear inside. The illuminated counter reads "Wärmepumpen & Kaltwassersätze mit natürlichen Kältemitteln", and a wall graphic presents "Industrielle und gewerbliche R290 (Propan)-Wärmepumpen und R290 (Propan)-Kälteanlagen". A wood-clad wall and a brochure rack complete the stand.