Labconco Purifier Filtered PCR Enclosures 3970425 - Manual (Page 30)

Chapter 6: Maintaining Your Filtered PCR Enclosure
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How to Install a New HEPA Filter
NOTE: Only a qualified certifier should service the HEPA filter. After the HEPA
filter is replaced, the enclosure MUST be certified. See Figure 6-1.
1. Unplug the enclosure and remove the prefilter located on top.
2. Remove the front panel by loosening the two screws that secure it.
3. Using a 9/16" deep socket, loosen the filter clamp bolts located on top.
Refer to Figure 6-1.
4. With the clamp bolts loosened, the HEPA filter-clamping frame should be
clear of filter. Carefully pull the filter straight out of the enclosure and
discard properly.
5. Cover the surface of the new HEPA filter gasket with a light coating of
silicone grease, if desired.
6. Install the new HEPA filter by pushing it straight into the cabinet, ensuring
that it is correctly oriented with the gasket facing down on the exhaust side
of the enclosure.
7. Tighten the clamp bolts uniformly until the filter gasket is properly
compressed against the frame. Inspect the seal thoroughly before
proceeding.
8. Reinstall the front panel and prefilter.
9. Plug the enclosure in and have it check for leaks and downflow velocity.
Do NOT contact blower wheel while still in motion.
NE PAS être en contact avec la roué du ventilateur tant qu’il est
en marche.
ATTENTION: The filter clamp bolts should only be tightened
enough to ensure a proper seal at maximum tightness. The
filter gasket should be compressed 50% or less.
!