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Installation
Replacing the Air Filter
To install a filter in a Densité 3+ FR4 frame
1 Orient the filter so the cutout for the controller display window lines up with the
window in the frame door.
2 Slip the holes in the four corners of the filter over the hooks on the door panel.
3 Insert the tip of the retaining bar into the slot on the hinge end of the door.
4 Tighten the thumbscrew on the other end of the retaining bar to hold it in place.
5 Install the door onto the frame by sliding it down onto the hinge pins.
6 Close the front panel of the frame (see
