Drieaz DefendAir HEPA 500 User manual

Owners
Manual
DefendAir®HEPA 500 Air Scrubber
Model F284-115V
DRI-EAZ PRODUCTS, INC.
15180 Josh Wilson Road, Burlington, WA 98233
Phone: [phone] Fax: [phone] www.dri-eaz.com
The DefendAir HEPA 500 is a portable filtration system that draws air in from the surrounding environment and
passes it through an advanced filtration system. The unit removes airborne particles such as dust, mold spores,
pollen, pet dander and other debris, and can also be configured to remove odors.
Patents: http://www.LBpatents.com
READ AND SAVE THESE INSTRUCTIONS
WARNING! Do not alter or modify your HEPA 500 in any
way. Use only replacement parts authorized by Dri-Eaz
Products, Inc. Modifications or use of unapproved parts
could create a hazard and will void your warranty. Contact
your authorized Dri-Eaz distributor for assistance.
WARNING! Electric shock hazard, rotating fan,
hot surface hazards. Unplug unit before opening
cover for cleaning or servicing. Unit must be
grounded.
•Inspect the power cord before use. If cord is damaged, do
not use. Always grasp the plug (not the cord) to unplug.
•Plug cord firmly into base of unit first, then into electrically
grounded outlet. Do not use adapter. Never cut off third
prong. Do not use an extension cord.
•To keep power cords from pulling the unit, be sure to
insert the plugs firmly and engage the cords in the cord
clips attached to back of unit.
•Do not attempt to repair the unit. For Authorized Service
Centers, check the “How to Buy” section at www.dri-
eaz.com or call Dri–Eaz at 800-932-3030.
If the power cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in
order to avoid a hazard.
WARNING
a) Do not operate any fan with a damaged cord or plug.
Discard fan or return to an authorized service facility for
examination and/or repair.
b) Do not run cord under carpeting. Do not cover cord with
throw rugs, runners, or similar coverings. Do not route cord
under furniture or appliances. Arrange cord away from traffic
area and where it will not be tripped over.
INTRODUCTION
The HEPA 500 uses a combination of airflow and filtration to
create cleaner air. The unit draws air through two types of
filters – a pre-filter and a HEPA filter. The first stage of filtration
captures larger particles. When fitted with the optional
Activated Carbon Filter, the first stage can also adsorb a wide
variety of odor compounds. The second stage of filtration
captures much smaller particles down to 0.3 microns.
BEFORE YOU BEGIN
Warranty registration
Visit warranty.drieaz.com to register your purchase.
Registration allows us to better assist you with using,
WARNING
Air inlet with
cover plug
removed. Fits
10 in. ducting.
Change
HEPA filter
light
Filtered air
outlet. Fits
8 in. ducting.
Parts Identification
Speed control
ON/OFF and
Circuit Breaker
Reset switch
Aux. power
outlets and GFCI
Test and Reset
07-01489F F284-115V 1 Dri-Eaz Products, Inc.

maintaining or servicing your equipment, as well as to contact
you in case we have important safety information concerning
this product. If you determine service is required, have your
equipment model, serial number and original proof of purchase
available and call your distributor for assistance with obtaining
a return material authorization (RMA).
ELECTRICAL SAFETY
The HEPA 500 has two features designed to protect the
machine and the operator from electrical hazards.
1. Circuit Breaker. The On/Off switch incorporates a circuit
breaker to protect the machine from excessive electrical
current by automatically turning the unit off when more than 12
amps run through the unit’s circuitry. If the circuit breaker trips,
first reduce the number of units connected to the main unit via
“daisy chain,” then press the On/Off switch to reset.
2. GFCI. The HEPA 500 is also equipped with Ground Fault
Circuit Interrupter (GFCI). The GFCI helps to protect the user
against electric shock. If the system detects a ground fault, the
GFCI will instantly interrupt the electric current. The GFCI will
also trip when a short circuit or an overload occurs.
NOTICE: If the GFCI trips, unplug the unit, and look for
potential electrical hazards – standing water, worn or frayed
cords – anything that would cause a surge of electrical current.
Once you’ve addressed these problems, press the red “Reset”
button and check for proper operation. To isolate the problem,
it may be useful to relocate the unit and plug it into a different
outlet. If the GFCI continues to trip after you’ve addressed any
obvious problems, please contact your Dri-Eaz distributor for
assistance.
HEPA 500 APPLICATIONS
Water Damage
Use of the HEPA 500 within the affected area will reduce
particle levels during the restoration process. In a standard
Category 1 water damage situation, place the HEPA 500 in
the middle of the affected area. Category 2 and 3 water
damage situations may require negative pressure
containment and other precautions. Only professionals with
the appropriate training should use containment
techniques.
Mold Remediation
Most mold remediation projects require containment.
Containment prevents the spread of mold spores and other
bioaerosols. Always use the optional DOP Filter (F415)
when using the HEPA 500 to ensure first-pass filtration in a
containment setup. Only a professional with the appropriate
training should attempt mold remediation.
Odor control
When used with the optional Activated Carbon Filter (F397),
the HEPA 500 can effectively remove many odors from an
indoor air environment, including volatile organic compounds
(VOCs), food odors, fumes from paint and paint thinners,
sewer odors, and many others.
Other uses include fire damage restoration, dust control, odor
control and sewage remediation. These are specialized
applications and require professional training. For more
information about using the HEPA 500 in these situations,
consult the IICRC S520: The Standard and Reference Guide
for Professional Mold Remediation. You can get a copy from
the IICRC at 360-693-5675 or visit their website at
www.IICRC.org. You can also contact Restoration Sciences
Academy at 800-932-3030 for technical advice and to learn
more about RSA classes.
WARNING: BREATHING HAZARD
When using the HEPA 500 in a containment area,
turn off all sources of power to open combustion
appliances such as fireplaces, boilers, furnaces,
water heaters and HVAC systems to avoid the risk
of backdrafting deadly carbon monoxide fumes.
CONTROLS AND OPERATING
INSTRUCTIONS
Variable Speed Control knob
Increase the fan speed by turning the knob (Fig. 1) clockwise.
Fan speed can be adjusted between 250 and 500 CFM.
Fig. 2: GFCI Ground Fault Interrupter
Fig. 1: Speed Control
Fig. 3: HEPA Filter
Change Light
Fig. 4: On/Off Switch
and Circuit Breaker
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Change Light
The change light (Fig. 3) illuminates when you need to
change the HEPA filter.
Electrical Outlets
You can “daisy chain” or interconnect up to 3 HEPA 500s to
customize your air filtration needs. The unit can conduct a
maximum of 12 amps when it is turned off, and 9 amps when
it is turned on. That means you can plug other equipment into
the unit, but the amperage is limited.
Setup
1. Unwrap the cord wrap completely
2. Place the HEPA 500 upright (vertical with handle at the top)
3. Plug in to a standard 115 volt outlet. Each HEPA 500 needs
3 amps to operate.
4. To switch the unit on, locate the control panel and turn the
variable speed switch clockwise (see Fig. 1 “Speed Control”
above). Then select either a maximum (500 CFM) or down to
a minimum (250 CFM) airflow rate. Tomaintain the optimal air
change rate, consult the IICRC S520 standards, 10.3.1.
Special Features
Daisy-chain capability
An onboard auxiliary power outlet allows for the connection of
up to three HEPA 500 units to create a maximum of 500,
1000, or 1500 CFM.
Ducting options
The HEPA 500 has a standard ductable 12 in. inlet and a
ductable 8 in. outlet, suitable for use with rigid and layflat
ducting. See “Ducting Options,” p. 5, for descriptions of the
ducting types available from Dri-Eaz.
Negative Pressure Setup
The HEPA 500 can be configured to set up a negative
pressure containment area. Install the HEPA 500 outside the
containment area to draw air out. Only professionals with the
appropriate training should set up negative pressure
containment areas.
Options for Storage and Operation
The HEPA 500 can be stacked up to two high for storage or
operation. The handle of one unit fits snugly into the bottom of
a second unit. The unit can also be operated on its back, with
the outlet facing upward.
For storage, HEPA 500s may be stacked horizontally or
vertically. Secure the unit properly when transporting.
About the filters
The HEPA 500 uses two types of disposable filters: prefilters
and a HEPA filter. The prefilter section can be fitted with one or
two filters. These prefilters are designed to capture larger
airborne particles and to control odors, depending on the filter
selected. The HEPA section (Position 3), is fitted with a filter
designed to capture 99.97% of smaller particles down to 0.3
microns. See Fig. 7, Filter Positions, and “HEPA 500 Filter
Configurations,” p. 5, for details.
Filters should be replaced whenever they show visible
accumulation of dust. For environments with a high volume of
aerosolized particles, we recommend the use of two prefilters
to extend the life of the HEPA filter.
Always replace the HEPA filter promptly when the Filter
Change Light illuminates. Do not attempt to vacuum and reuse
the HEPA filter.
NOTICE: When using the HEPA 500 on remediation
projects, the filters should be changed and properly
disposed of after every job.
Replacement filters are available from your Dri-Eaz
distributor.
MAINTENANCE
WARNING! ELECTRIC SHOCK HAZARD.
Disconnect from electrical supply prior to servicing
or cleaning.
WARNING! BREATHING HAZARD. Always wear
an appropriate NIOSH-approved respirator and
personal protective equipment when removing or
replacing filters, or when cleaning the HEPA 500.
Fig. 5: Replacing the prefilters
Release the four spring clips (one shown here
and lift off cover to access the prefilter(s).
Fig. 6: Replacing the HEPA filter
Remove the eight bolts and tabs (one shown here)
and lift off cover to access the HEPA filter.
WARNING
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Before each use
1. Inspect the electrical cord for damage, and do not use the
unit if you find any fraying, cuts, etc. Contact your local Dri-Eaz
distributor for service.
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.
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 page to download
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
Postiion 3
(HEPA filter)
Filter cover
HEPA filter
housing
Air inlet
Postion 2:(optional
second refilter)
Postion 1.
(prefilter)
Airflow direction
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HEPA 500 FILTER CONFIGURATIONS
Filtering requirements PREFILTERS
(Positions 1 & 2) HEPA (Position 3)
Clean water loss air scrubbing. For a
relatively clean environment. n/a 30% Prefilter
(F271) HEPA filter (F321)
Standard air scrubbing. For environments with
higher particle loads, such as construction or
remodeling sites.
10% Prefilter
(F270) 30% Prefilter (F271) HEPA filter (F321)
First-pass efficiency air filtration. For use with
a negative air setup during remediation of high
risk contaminants and/or when DOP testing is
required. See “About DOP First-Pass Filtration
Efficiency,” p. 4.
30% Prefilter
(F271) DOP Prefilter (F415) HEPA filter (F321)
Odor control and air filtration. For removing
volatile organic compounds (VOCs), food odors,
fumes from paint and paint thinners, sewer
odors, and many other noxious odors.
Activated Carbon Filter
(F397) 30% Prefilter (F271) HEPA filter (F321)
FILTER DESCRIPTIONS
10% Prefilter (F270). Synthetic fiber filter media rated at 10% efficiency. Captures the largest particles to help extend the life of the
higher efficiency filters inside. More product information here.
30% Prefilter (F271). Synthetic fiber filter media rated at 30% efficiency. Captures larger particles to help extend the life of the HEPA
filter. More product information here.
Activated Carbon Filter (F397). The use of activated carbon in this filter allows the removal of a wide variety of compounds, including
volatile organic compounds (VOCs), food odors, fumes from paint and paint thinners, sewer odors, and many other noxious odors.
Combining activated carbon filtration with HEPA filtration is especially effective in removing airborne soot particles and the odors they
create. More product information here.
DOP Prefilter (F415). Use the DOP filter to ensure laboratory-rated performance for sensitive jobs requiring first-pass HEPA filtration.
More product information here.
HEPA filter (F321). The HEPA filter has an efficiency rating of 99.97% against 0.3 micron oily aerosol particles. More product
information here.
DUCTING OPTIONS
12 in. rigid ducting (Sto & Go Ducting, F405) for inlet.25 feet of collapsible 12-inch ducting with a built-in protective case. Connect
one or more sections. Packs into convenient carry case. More product information here.
8 in. layflat ducting (F268) for outlet.Strong 4-mil poly ducting. 13 in. wide when flat; expands to 8.3 in. diameter when inflated. 500
feet per roll. Cut to length. More product information here.
NOTICE! Because federal, provincial and local laws and regulations have varying requirements for the application, testing and general
use of equipment on asbestos abatement projects, Dri-Eaz cannot warrant the use of any product we manufacture for asbestos
abatement. Contractors performing abatement work should evaluate tools, equipment and procedures in light of their local regulatory
requirements, and comply with those requirements.
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