Dri-Eaz DefendAir HEPA 500 Manuel Du Propriétaire page 4

2. Test GFCI protection. Plug the unit in and turn it on. Now
depress the blue GFCI Test button. If it is operating properly
the machine will turn off and the red Reset button will pop up.
Press the Reset button to resume normal operation.
As Needed
Clean housing and impeller. Lay the the unit on its back and
loosen the four filter cover clamps (Fig. 5). Lift off the filter
cover and remove any prefilters present. Use a 3/8 in. wrench
to loosen the 8 retaining tab nuts holding the inlet panel in
place. Slide the retaining tabs outward away from the center of
the inlet panel, and lift off the inlet panel.
Always replace the HEPA filter promptly when the Filter
Change Light illuminates. Do not attempt to vacuum and reuse
the HEPA filter.
Filters
The prefilters should be inspected regularly and changed
whenever dust has visibly accumulated on the filter surface.
The HEPA filter should be changed whenever the change filter
light (Fig. 3) comes on.
See "HEPA 500 Filter Configurations," p. 5, for the available
filter combinations.
Water damage restoration applications
Before each use
Look for accumulated dust and dirt that could restrict airflow
through the filter into the unit. If any is visible, change out the
pre-filter.
Remediation applications
• Wear NIOSH-approved protective gear when changing filters.
• Change filters after every remediation job.
• Change HEPA filter when the filter indicator light (Fig. 3)
comes on.
• Dispose of used filters according to local regulations.
• Replace both the prefilters and HEPA filter to prevent cross-
contamination.
• Clean the unit thoroughly (vacuum and damp wipe per IICRC
S520, 10.11) after each job before removing it from the
containment area to avoid cross-contamination. Pay particular
attention to the area around the air intake. Let the unit dry
before installing clean filters.
Filter access instructions
To inspect and change the prefilters, lay the
unit flat on its back. Lift and release the four
latches on the outlet panel and lift off the
panel. Inspect and/or replace the prefilters as
necessary.
07-01489E F284-115V
After ensuring that the prefilter(s) are properly seated, replace
the outlet panel, and re-engage the latches. The HEPA 500 is
now ready to return to service.
To change the HEPA filter, lay the unit flat on its back, then
use a 3/8 in. wrench to loosen the 8 retaining tab nuts holding
the inlet panel in place. Slide the retaining tabs outward, away
from the center of the inlet panel, and lift off the inlet panel.
Lift out the used HEPA filter and replace it with a new one. Do
not clean and reuse the HEPA filter.
After making sure that the filter is properly seated, replace the
inlet panel, slide the tabs back into place, and tighten the nuts.
Do not overtighten. The HEPA 500 is now ready to return to
service.
About DOP first-pass filtration efficiency
DOP (Dispersed Oil Particulate) first-pass efficiency refers to a
standard procedure for testing the effectiveness of HEPA
filtration. The DOP test introduces a dense cloud of extremely
fine particulates into the filter under controlled conditions. DOP
verification is required in certain settings.
The addition of the DOP filter (F415) makes the HEPA 500 a
high efficiency three-stage air filtration unit suitable for any job
that requires first-pass HEPA filtration.
Install the DOP filter between the standard pre-filter and the
HEPA primary filter. For odor control, the Activated Carbon
Filter may be used together with the DOP filter. Simply replace
the pre-filter with the carbon filter.
ADDITIONAL RESOURCES
• Dri-Eaz Guide to Air Scrubbing. Visit this
or order a copy.
• S520: The Standard and Reference Guide for Professional
Mold Remediation, call the IICRC at 360-693-5675.
• Institute of Inspection, Cleaning and Restoration Certification
(IICRC), 360-693-5675.
• Dri-Eaz website: www.dri-eaz.com
• Restoration Sciences Academy 800-932-3030
www.RestorationSciencesAcademy.com
• NIOSH help line 800-35-NIOSH. Respirator and respirator
filter information.
Fig. 7: Filter Positions
Filter cover
Air inlet
Airflow direction
Postion 1.
(prefilter)
Postion 2:(optional
second refilter)
4
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HEPA filter
housing
Postiion 3
(HEPA filter)
Dri-Eaz Products, Inc.