B&C Technologies DI-325 Industrial - Manual (Page 21)

INSTALLATION PROCEDURES
3-12
b. Air Connection
Air connection to system size 10 mm.
Figure.3-5 Air Connection
c. No air regulation is provided with the dryer
External regulation of 80 psi must be provided. It is suggested that a regulator / fitter
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 dryer model 325 lbs steam dampers allow 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 (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.