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b. Steam Damper Air System Connections
The pneumatic (piston) damper system requires an external supply of compressed air. The air connection is
made to the system solenoid valve, which is located at the rear inner top area of the dryer.
1) Air Requirements
2) Air Connection
Air connection to system --- 1/8” N.P.T.
3) Air Regulation
No air regulation is provided with the dryer. External regulation of 80 PSI (5.51 bar) 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.
4) Steam Operation
Steam operation was tested and adjusted prior to shipping at 80 PSI (5.51 bar). If damper air adjustment
is necessary, locate the flow control knob (as shown in the illustration below) and make necessary
adjustments as noted below.
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
Shaded areas are stated in metric equivalents
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