WU166-410

This configuration is a SU/WU unit built on a removable U-tube bundle for liquid-to-liquid heating and cooling. Pumped boiler water circulates through the baffled shell against the tube-side fluid. Its envelope centers on a 16-inch diameter shell, 72-inch shell length, and roughly 81-3/4 inches overall in a 4-pass arrangement. That works out to about 227 square feet of heat transfer surface on 3/4-inch O.D. tubes. The build specifies cast iron or brass bonnets, steel shell, copper tubes, and steel or brass tubesheets. Operating limits are 150 PSI on the shell side, 125 PSI on the tube side, and 300°F maximum temperature. Common applications are hydronic HVAC converters, pool and storage-tower heating, and oil cooling and snow melting. This build is designated WU166-410.