FILTER CHANGE PROCEDURE
To Change the First Stage Filter:
1. With the unit operating, pull up on the door latch and open the pre-filter access door.
2. Remove the first stage filter and replace it with a new one.
3. Close the door and lock it in position by pushing down on the latch. Make sure the door is
flush
against the PAS1200 cabinet before closing latch.
4. If the filter change indicator remains “ON” after changing the first stage filter, the second stage filter
should be replaced.
To Change the Second Stage Filter:
1. Open the pre-filter access door.
2. Remove the second stage filter and replace it with a new one.
3. Close the door and lock it in position.
4. If the filter change indicator remains “ON” after changing the second stage filter, the optional third
stage filter should be replaced. The light would remain “ON” only if the optional third filter is in use
and has become loaded.
To Change the Optional Third Stage Filter:
1. Open the pre-filter access door.
2. Remove the third stage filter and replace it with a new one.
3 Close the door and lock it in position.
Note
: If an optional
Vapor-Lock
®
filter is being used, be sure to remove it from its poly bag before
installing it in the unit. Vapor-Lock
®
filters are packaged in poly bags to preserve the integrity of the
carbon granules.
To Change the HEPA Filter:
1. Turn the unit “OFF” and disconnect the power cord from the electrical outlet.
2. Remove the HEPA filter access panel.
3. Using a 1/2" wrench, loosen the 2 HEPA filter retaining bolts by turning them in a
counterclockwise direction and remove the HEPA filter.
4. Replace the HEPA filter making sure that the new filter’s foam seal is facing upward so that it
seats against the upper HEPA filter mounting surface. The HEPA filter is delicate and should be
handled with care.
5. Push the HEPA filter into the cabinet, making sure it is positioned in the middle if its V-shaped
bracket.
6. Tighten the filter retaining bolts and reattach the HEPA filter access panel.
Warning: Use only Abatement Technologies pre-filters, HEPA filters, and replacement parts.
Substitute parts void the warranty, jeopardize worker and environmental safety, and adversely
effect engineered performance levels.
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