Roen Est's PIOV205 heat exchanger (6567930, ZNB/2003300800) is an air-to-water heat exchanger designed to transfer heat between ambient air and circulating water in industrial HVAC, process cooling, and thermal-management setups. It uses 1/2 in. NPT threaded connections for straightforward integration into existing piping, making it suitable for compact installations where space is at a premium. In Piovan's spare-parts catalog, 6567930 is listed as an AIR/WATER HEAT EXCHANGER, confirming its intended use to exchange heat between air and water in commercial and industrial systems.
