American Dryer ML-200 manual Compressed Air Supply Air Pressure

4.Steam Damper Air System Connections

The ML-200 is manufactured with a pneumatic (piston) damper system which requires an external supply of compressed air. The air connection is made to the steam damper solenoid valve which is located on the outer top, at the rear left hand corner of the dryer.

a. Air Requirements

Compressed Air Supply	Air Pressure
Normal	80 PSI	5.51 bars
Minimum Supply	70 PSI	4.82 bars
Maximum Supply	90 PSI	6.20 bars
Shaded areas are stated in metric equivalents

b.Air Connection

Air connection to system --- 1/8-inch F.P.T.

c.No air regulation is provided with the dryer. External regulation of 80 PSI (5.51 bars) must be provided. It is suggested that a regulator/filter gauge arrangement be added to the compressed air line just before the dryer connection. This is necessary to insure that correct and clean air pressure is achieved.

5.Steam Damper System Operation

The MLS-200 steam damper, as shown in Diagram 1 on page 28, allows the coil to stay constantly charged eliminating repeated expansion and contraction. When the damper is opened, the air immediately passes through the already hot coil, providing instant heat to start the drying process. When the damper is closed, ambient air is drawn directly into the tumbler (basket), allowing a rapid cool down.

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