User's Guide

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The library includes an air filter, located behind the door. The air filter
should be replaced once a year (or more frequently if the library is
operating in a dirty environment). To order replacement filters, see
page xv.
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To replace the air filter:

Unlock and open the library's door (see page 50).

From inside the door, use a T-15 TORX bit to remove the three
screws that secure the metal filter cover to the front door, as shown
in the figures on the next page.

Remove the metal filter cover and pull out the filter.
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The rack-mount model contains one long filter; the standalone
contains two smaller filters.

Replace the new filter inside the door.