Labconco PuriCare Vertical Flow Stations 3830020 - Manual (Page 39)

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Chapter 6: Maintaining Your PuriCare
To Remove the Exhaust HEPA Filter:
The exhaust HEPA filter is awkward
to handle and heavy. Use appropriate
lifting techniques to remove and
handle it. Use two people to remove
the filter if possible.
Exhaust HEPA Filter
Replacement
1. Remove the lower rear panel by removing the #2
Phillips screws on the perimeter of the panel.
2. Remove the work surface and two lower prefilters
as described earlier in this chapter.
3. Locate the four locking bolts that secure the lower
plenum. They are located in each corner of the
plenum and they thread through the lower bracket
and down onto the top of the plenum, as shown in
Figure 6-6. Loosen each bolt at least ½ inch.
4. Locate the four plenum lift bolts that raise the lower
plenum. They are located in each corner of the
plenum, next to the locking bolts and they thread
into the top of the plenum. Tighten each bolt until
there is approximately ¼ inch clearance between the
top of the HEPA filter and the bottom of the
plenum.
5. Remove the two filter retainer brackets.
6. Slide the Exhaust HEPA filter straight out of the
station.
7. Ensure the replacement HEPA filter matches the
performance specifications of the original filter, in
particular the efficiency and the flow rate at a given
pressure drop.
8. Install the replacement HEPA filter by reversing the
disassembly steps.
9. Plug in the station and have it recertified before use.
!