SU289-2

this configuration is a SU/WU unit built on a removable U-tube bundle for steam-to-liquid heating. Steam condenses in the single-pass shell while the heated fluid travels the tubes. Its envelope centers on a 28-inch diameter shell, 108-inch shell length, and roughly 138-5/8 inches overall in a 2-pass arrangement. That works out to about 1110 square feet of heat transfer surface on 3/4-inch O.D. tubes. That combination is cataloged as SU289-2. The build specifies steel bonnets, steel shell, copper tubes, and steel tubesheets. On the ratings side, expect 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Common applications are building comfort heating, radiant panel and snow-melt converters, and instantaneous domestic water heating.