Labconco Protector 3390000 User Manual page 34

Resetting a Circuit Breaker:
To reset any of the circuit breakers located on the top rear of cabinet, depress the white
button until it resets.
Figure 7-4
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 7-4 to locate the speed control. The air velocity is increased by turning the
speed control counterclockwise. Turning clockwise will decrease the velocity.
Adjusting the Filter Light Pressure Switch:
1. Using a flat head screwdriver, locate and remove the hole plug from the top of
the EDC. Refer to 7-5 & 7-6 for a visual.
Figure 7-5
Hole Plug
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