Install an inverted bucket steam trap and check valve at least 12-inches below the steam coil as near to the coil as possible. A vacuum breaker should be installed in the piping. This will prevent the condensing steam from causing a vacuum inside the coil, and possibly damaging the coil. The supply and return lines should be insulated. This will save energy and provide for the safety of the operator and maintenance personnel.

Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causing steam coil damage. ALL horizontal runs of steam supply piping should be pitched 1/4-inch for every one

(1)foot back towards the steam supply header causing the condensate in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.

IMPORTANT: Flexible hose/coupling must be used. Coil failure due to hard plumbing connections will VOID THE WARRANTY.

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American Dryer Corp Super AD-30 manual
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