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Chapter 6: Maintaining the Cabinet
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Resetting a Circuit Breaker:
To reset any of the circuit breakers located on the top rear of cabinet, depress the
white button until it sets.
Setting the Speed Control
Adjustment of the speed control varies the volume of air drawn through the liner
while the unit is operating. Ideally, smoke released into the intake prefilter should
traverse the liner, and be drawn into the exhaust prefilter in approximately 5 seconds
or less.
Using a small screwdriver, adjust the speed control to give the required face
velocity. See Figure 6-4 to locate the speed control. The air velocity is increased
by turning the speed control counter clockwise and clockwise to decrease velocity.
Figure 6-4