Raypak 302-902 Installation And Operating Instructions Manual page 42

HI DELTA FILTER BOX INSTRUCTIONS CONTINUED
11. Mark the four holes through filter box for screw locations.
12. Using a 1/16 drill bit, drill a pilot hole in each of the holes
previously marked.
13. Mount the filter box to the unit using four screws provided
in the kit.
14. Install filter under filter box on top of air intake. See Fig. 3.
NOTE: The filter media fits loosely in the filter box. When
the fans energize, the filter is drawn onto the top
of the collar and is held in place by the suction.
The checked side of filter sits on air intake collar.
15. Install two screws in the holes behind cover plate.
See Fig. 4.
Fig. 3
Fig. 4
42
Air intake
collar
Side view
Filter
Install screws here