American Dryer Corp. ML-75V - Manual (Page 38)

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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 steam damper is in cool down mode as shown in
Diagram 2.
6. Steam Damper Air Piston (Flow Control) Operation Adjustment
Although the steam damper operation was tested and adjusted prior to shipping at 80 PSI (5.51 bar), steam
damper operation must be checked before the dryer is put into operation. Refer to page 33 for instructions
to check steam damper system operation. If steam damper adjustment is necessary, locate the flow
control valve and make the necessary adjustments as noted below.