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b. Air Connection
Air connection to system --- 1/8-inch N.P.T.
c. No air regulation or filtration is provided with the dryer. External regulation and filtration of 80 PSI must
be provided. It is suggested that a regulator and 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.
4. Steam Damper System Operation
The ADS-115 steam damper, as shown in the top illustration on page 36, 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. (on page 36)
3. STEAM DAMPER AIR SYSTEM CONNECTIONS
The ADS-115 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 at the
rear inner top area of the dryer just above the electric service relay box.
a. Air Requirements
COMPRESSED AIR SUPPLY AIR PRESSURE
NORMAL 80 psi
MAXIMUM 70 psi
MINIMUM 90 psi