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24 American Dryer Corp. 113344-9
Compressed
Air Supply
Air Pressure
Normal 80 psi
5.51 bar
Minimum Supply 70 psi
4.82 bar
Maximum Supply 90 psi
6.21 bar
a. Air Requirements
Shaded areas are stated in metric equivalents
b. Air Connection
Air connection to system --- 1/8” N.P.T.
c. Air Regulation
No air regulation or filtration is provided with the dryer. External regulation and filtration of 0.75 cfh at
80 psi (0.02 cmh at 5.51 bar) must be provided. It is suggested that a regulator or filter gauge
arrangement be added to the compressed air line just before the dryer connection. This is necessary to
ensure that correct and clean air pressure is achieved.
4.
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 through the coils.
NOTE: With the dryer off or with no air supply, the damper is in the cool down mode as shown in
Diagram 2.