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Chapter 6: Maintaining Your PuriCare
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7. Locate the four plenum lift bolts that raise the upper 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.
8. Slide the Supply HEPA filter straight out of the station.
9. 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.
10. Install the replacement HEPA filter by reversing the disassembly steps.
11. Plug in the station and have it recertified before use.
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.
!
Figure 6-6
Supply Filter
Flange must be removed
to replace exhaust filter