Labconco Logic+ A2 Technical Manual page 44

2. Locate the exhaust damper adjustment bolt (reference Figure 9-2). The
adjustment bolt is in the center of a flexible, orange cup seal. Use a 7/16-inch nut
driver or socket and ratchet to turn the bolt. The bolt has 16 turns from fully open
to fully closed. The adjustment decal shows the number of turns from fully closed
that balanced the biosafety cabinet correctly at the factory. The adjustment bolt
and adjustment decal are shown in Figure 9-2.
Turning Clockwise:
 Increases Inflow (Exhaust)
 Decreases Downflow
Turning Counterclockwise:
 Decreases Inflow (Exhaust)
 Increases Downflow
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Figure 9-2
Adjustment
Decal
Adjustment
Bolt