WU108-45

Configured for liquid-to-liquid heating and cooling, this configuration carries the removable U-tube bundle construction that defines the SU/WU range. Pumped boiler water circulates through the baffled shell against the tube-side fluid. The configuration measures 10 inches across the shell, 96-inch shell length, and roughly 101 inches overall in a 4-pass arrangement. That works out to about 110 square feet of heat transfer surface on 3/4-inch O.D. tubes. As furnished, materials include cast iron or brass bonnets, steel shell, copper tubes, and steel or brass tubesheets. Operating limits are 150 PSI on the shell side, 150 PSI on the tube side, and 300°F maximum temperature. This build is designated WU108-45. Installations range across hydronic HVAC converters, oil cooling and snow melting, and pool and storage-tower heating.