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3) Air Regulation
No air regulation is provided with the dryer. External regulation of 80 psi 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.
b) Steam Damper System Operation
The steam damper, as shown in the illustration below, 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 basket (tumbler), allowing a rapid cool down.
Diagram 1 shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).
Diagram 2 shows the damper in the cool down (closed) mode, pulling ambient air directly into the
basket (tumbler) without passing the coils.
NOTE: With the dryer off or with no air supply, the damper is in cool down mode as shown in
Diagram 2.