B&C Technologies DP-250 Industrial - Manual (Page 33)

INSTALLATION PROCEDURES
3-19
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.
Figure.3-12 Steam Damper System.
5. Steam Damper Air Piston (Flow Control) Operation Adjustment
Although the damper operation was tested and adjusted prior to shipping at 80 Psi, steam
damper operation must be checked before the dryer is put into operation. damper air adjustment is
necessary, locate flow control valve and make necessary adjustments as noted below.
Figure.3-13 Steam Damper Operation Adjustment
Air connector
Wire size 8 mm.
Flow control valve Solenoid valve Damper air cylinder
Air flow
Air flow
Diagram 2
Cool Down Mode
Diagram 1
Heating Mode
Air flow