Additional Resources - Dri-Eaz DefendAir HEPA 500 El Manual Del Propietario

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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.