Adjusting Double-Shoot Damper

A49047-UN-24AUG10

A41850-UN-15JUL97

A41851-19-18JUL97

A - Double-Shoot Plenum

B - Crank Handle

C - Position Indicator Rod

Damper is adjusted by turning crank handle (B) and observing color-coded position indicator rod (C). Color coding shows that internal damper is:

NOTE: On tow-behind cart, damper crank is located on the underside of the plenum to avoid interference.

Color Code	Damper Position
Blue	Full Down
Green	Between Down and Center
Yellow	Centered
Orange	Between Up and Center
Red	Full Up

NOTE: When the damper is adjusted up, more air is delivered to the lower tubes; when adjusted down, more air is delivered to upper tubes.

When single-shooting with a double-shoot plenum (only top or bottom tubes active), adjust damper to completely block air flow to inactive tubes.

In true double-shoot (both top and bottom tubes carrying product), set fan speed for higher rate product; then adjust damper to reduce air flow to lower rate product tubes.