Coils are manufactured using seamless, deoxidized, heavy wall, smooth copper tubes. They are mechanically expanded in self-spaced, full-collared aluminum corrugated plate fins for permanent bond and maximum heat transfer. Connections and bends are brazed with high temperature brazing alloy. The coil is factory leak-tested at 400 psig. All tube sheets are provided with oversized holes and tubes are supported in sliding tracks for friction-free assembly and maximum reliability.
