SAS AirHawk30 Manual

Model AirHawk |© 2020 Sentry Air Systems, Inc.| 713-690-2153 | Rev 2 Page | 1
Sentry Air Systems Inc. USA
21221 FM 529 Rd, Cypress, TX 77433
1-800-799-4609 • INTL: 1-713-699-2153
www.sentryair.com
AirHawk Ductless
Containment Hood Series
Operation & Maintenance Manual
AirHawk30, AirHawk40, AirHawk46

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
Model AirHawk |© 2020 Sentry Air Systems, Inc.| 713-690-2153 | Rev 2 Page | 2
Table of Contents
1.0 UsingthisManual..............................................................................................................................................3
1.1 Safety Signal Words........................................................................................................3
1.2 Contacting Sentry Air Systems........................................................................................4
1.3 About Sentry Air Systems................................................................................................4
2.0 Overview &Guidelines.....................................................................................................................................5
2.1 Overview of AirHawk Ductless Containment Hoods.........................................................5
2.2 Appropriate Placement....................................................................................................6
3.0 OperationalSafetyPractices...........................................................................................................................7
3.1 General Work Practices...................................................................................................7
3.2 Lower Flammability Limit.................................................................................................7
3.3 Preventing Explosion, Fire...............................................................................................7
3.4 Preventing Exposure to Biohazards.................................................................................7
3.5 Safe Operations Guidelines.............................................................................................8
4.0 Filters –InitiationoftheUnit,Maintenance,andReplacement.................................................................9
4.1 Unit Filter(s) Overview.....................................................................................................9
4.2 Replacing Filters..............................................................................................................9
4.3 Anatomy of a Filter ........................................................................................................10
4.4 Disposing of Different Filter Types.................................................................................10
4.5 Filter Life Cycle Depends upon Application ...................................................................11
4.6 Removing Filters from the Chassis................................................................................11
4.7 Replacing Filters............................................................................................................13
4.8 Filter Cover Installation..................................................................................................14
4.9 Ordering Replacement Filters........................................................................................15
5.0 Maintaining theFan/FilterChassis...............................................................................................................16
5.1 Motor Maintenance........................................................................................................16
5.2 Cleaning your Hood.......................................................................................................16
6.0 AirHawkEquipment........................................................................................................................................18
6.1 Sentry AirHawk Control Console ...................................................................................18
6.2 FrontWindowHingeAdjustment........................................................................................................19
7.0 AirHawkSpecifications..................................................................................................................................20
DISCLAIMER ...............................................................................................................................................................22
LIMITEDWARRANTY................................................................................................................................................22

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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1.0 Using this Manual
This operation and maintenance manual provides the user with the basic knowledge to operate and
maintain Sentry Air Systems AirHawk Ductless containment Hood equipment.
This manual may not be copied in whole and/or in part without written permission of Sentry Air
Systems, Inc.
1.1 Safety Signal Words
Following ISO 3864-2 guidelines, when applying safety signal words to our documentation, we consider
both the likelihood and the severity of events that could occur if instructions in this manual are not
followed.
Our definitions are noted in the following table.
If an accident occurs, serious injury or death is almost certain.
If a hazardous situation occurs, serious injury or death is possible.
Personal injury and/or property injury is a credible possibility.
Notes practices not related to personal injury.
There are safety signal words and symbols on pages 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, and 18 of this
document.
Please read them before operating your hood.

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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1.2 Contacting Sentry Air Systems
When contacting Sentry Air Systems for questions, have the following information ready:
1. Filter Combination
2. Filter Sequence
3. Job number
4. Application Description
1.3 About Sentry Air Systems
Sentry Air Systems, Inc. is a Houston-based designer and manufacturer of high-quality fume
extractors and air purification devices.
Our mission is continued engagement in the development air purification systems that improve
your quality of life, at work and at home.
We are proud to have worked with and supplied air purification systems to industry leaders in
government, space aeronautics, education, welding, environmental protection, computer
technology, medical, pharmaceutical, construction, and entertainment.
We invite you to explore our website, www.sentryair.com, or give us a call at 800.799.4609.
We’re happy to work with you to develop an air purification solution that meets your specific
needs.
Simple Solutions for Cleaner Air™

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2.0 Overview & Guidelines
2.1 Overview of AirHawk Ductless Containment Hoods
•Sentry Air Systems designs and manufactures dependable, modular and economical air
purification solutions for the workplace.
•Our Sentry AirHawk Ductless Containment Hoods are self-contained workstations that help
protect the operator's breathing zone from harmful airborne fumes and particulates.
•This manual addresses key aspects of operating and maintaining your Sentry AirHawk G2
Ductless Containment Hood (DCH).
•The main DCH components are a hood that contains fumes/particulates and a fan/filter chassis
that captures the fumes/particulates and filters them.
•Filters must be replaced regularly to remain effective; rate of replacement depends upon the
application. Call your Sentry Air representative if you have questions on filter replacement.
•Our Sentry AirHawk G2 DCHs are designed for indoor environments.
•They are powered via 115-volt, 60-Hz, single-phase grounded electric outlet.
•Additional information about our company and our products is on our website:
www.sentryair.com.
FIGURE 1. SENTRY AIRHAWK G2 DUCTLESS CONTAINMENT HOOD
Fan/Filter Chassis
Hood
Filter Cover

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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2.2 Appropriate Placement
2.2.1 Allow Room for Filter Replacement
It is important to position your Sentry AirHawk DCH with sufficient clearance from walls,
ceiling and other equipment so that you can perform the actions necessary to manipulate the
filter screws and replace the filters.
2.2.2 Exhaust/Intake Considerations
DCH systems exhaust air out of the hood through the filters.
When placing the unit into the work environment, make sure that there is at least 12” of
clearance between the top of the fan/filter chassis and any potential obstruction of the airflow.
Avoid blocking or pointing an airflow or cross draft from a fan or vent at the sensor hole located
on the left-hand side of the containment hood. Doing so may cause the unit to produce spurious
or unreliable readings.
2.2.3 Work Surface
Place your DCH on a stationary work surface, with appropriate spacing and positioning relative
to other equipment.
We do not recommend the placement of the unit on a cart for any purpose other than relocation;
when doing so; transport the fan/filter chassis separately and safely.
2.2.4 Operating and Storage Environmental Conditions
Operating temperature within the hood should not exceed 170°F or
material integrity may be compromised.
•Ambient operating temperature: 33°F to 110°F
•Storage temperature: 33°F to 100°F
•Ambient operating humidity: 90% relative humidity maximum, non-condensing
•Storage humidity: 90% relative humidity maximum, non-condensing
2.2.5 Power Requirements
Your DCH plugs into a 115-volt, 60-Hz, single-phase grounded electrical outlet.
Failure to supply correct input power to the DCH may result in injury to
personnel and/or damage to equipment.

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3.0 Operational Safety Practices
3.1 General Work Practices
In well-designed work processes and practices, our products help provide a safe and healthy
environment for workers.
As you evaluate your work practices, a good reference to determine the safety of individual
chemicals is the CDC’s NIOSH Pocket Guide to Chemical Hazards, found at
http://www.cdc.gov/niosh/npg/.
If you encounter uncertainties, consult an Industrial Hygienist and develop an adequate system of
engineered safety controls.
3.2 Lower Flammability Limit
Gas mixtures consisting of combustible, oxidizing, and inert gases are flammable under certain
conditions. The lower flammable limit (LFL) describes the leanest mixture that can sustain a
flame.
This product is not intended for use with explosive or highly
flammable or toxic substances nor environments where the Lower
Flammability Limit may be exceeded.
See each chemical’s specific MSDS for more information on these
limits.
3.3 Preventing Explosion, Fire
Failure to comply with appropriate filter replacement schedules and the safety and operational
guidelines in this document could result in serious injury, fire or explosion.
Do not use this product for applications with a risk of dangerous fire or
explosion.
3.4 Preventing Exposure to Biohazards
Biohazards are infectious agents or chemicals or other materials that present a risk or potential
risk to the health of humans, animals, or the environment.
Some applications may involve the collection of biohazards in filter media. Operators should use
appropriate personal protective equipment aside from the hood itself and when changing the
filters. Multiple engineering safety controls should be in place for your application.
Use of this product with inappropriate chemicals or substances, or
failure to provide regular maintenance may result in contaminated air
being re-circulated into the work environment.
This product is not intended to be used as a substitute for devices such
as personal protective respirators, which are designed to protect users
from poorly absorbed substances, including but not limited to carbon
monoxide, methane, hydrogen, and acetylene.

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3.5 Safe Operations Guidelines
Keep the lid closed when the unit is in operation or you create the risk of
exposure.
Unplug this equipment before performing maintenance or replacing
filters.
Do not leave unit unattended while turned on.
Use only the manufacturer’s recommended attachments and filters,
failure to do so will void the warranty.
Do not use with a damaged cord or plug.
Do not handle plug with wet hands.

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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4.0 Filters –Initiation of the Unit, Maintenance, and Replacement
4.1 Unit Filter(s) Overview
Your unit is shipped to you with filters. The filters shown in Figure 3 may or may not represent
your unique filter set.
FIGURE 2. EXAMPLE STACK OF FILTERS
Figure 2, filters will have labels (Not Shown) with the filter type and the direction of airflow and
the filter warning label. These labels will be located on the front.
Do not operate the unit with damaged filters.
Do not operate the unit with missing filters.
Only use filters provided by Sentry Air Systems, Inc.
4.2 Replacing Filters
Before you remove filters, note the name and stacked order of the
filters, as well as spacer frames, in your unit. Consider taking a
photo of the stacked filters and attach it to this document.
Filter stack order list
__________________________________
__________________________________
__________________________________
Filter Knob
HEPA Filter
Carbon Filter

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Filters must be changed out regularly.
The requirement for filter changes varies by application and
usage.
Sentry Air Systems is not responsible for proper and timely
filter changes.
The types of filters in your unique configuration may require different methods of disposal.
To help you plan your filter disposal, the following sections provide filter terminology and
identify which part of different filter types are targets for disposal.
4.3 Anatomy of a Filter
FIGURE 3. ANATOMY OF AN AIRHAWK G2 FILTER
Figure 3 shows a typical filter’s metal frame, the filter’s media, and the compressible gasket.
The compressible gasket plays an important role when fitting filters into the chassis. When filters
are properly installed and tightened, the gaskets help ensure appropriate airflow and sealing for
your application.
If you decide to change the types of filters you use for your
application, consult your Sentry Air Systems representative and your
Industrial Hygienist and/or safety expert before making your final
decision.
4.4 Disposing of Different Filter Types
Follow local, state and federal statutes when disposing of filters
and filter media.
Compressible
Gasket
Filter Media
Aluminum
Frame
Grab Handle
(Both Sides)

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4.5 Filter Life Cycle Depends upon Application
The life cycle of a filter depends upon how long it is used under the conditions of a specific
application.
Application Specialists at Sentry Air can help you determine a filter-replacement schedule, but
the final decision should be made with the recommendation of your local safety expert and/or
industrial hygiene professional. Contact your SAS specialist to find out about optional
equipment.
4.6 Removing Filters from the Chassis
Dirty filters may be contaminated. When you replace filters,
ALWAYS use appropriate personal protective equipment
(PPE).
Carbon absorbent filters are heavy. (especially used filters) Use
caution and an assistant if needed when lifting filter into or out
of place. Filters should be carried by the carrying strap located
on both sides of the filter.
1. Disconnect the unit’s power supply.
2. Loosen the captive filter cover screws (two located at the rear of the filter housing cover).
3. Remove the filter cover from the front of the unit.

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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4. Loosen the filter knobs at the top of the until there is sufficient leeway to remove the
filters.
(NOTE: Do not loosen a single knob more than one turn at a time).
5. Lift the filter(s) by the grab handles and slide out from the front.
Document the order of the filter stack in the chassis, and the
direction of airflow, before removing them as shown on page
9.
6. Gaskets form a tight seal and may sometimes stick to the frame of an adjacent filter,
causing multiple filters to move as one when you remove them from the chassis. This is
not uncommon.
7. Remove all filters and dispose of used filter media in accordance with local, state and
federal regulations.
Grab Handles
Grab Handles

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4.7 Replacing Filters
Replace the filters in the same ordered stack, and in the same airflow
direction, as the old filters.
5. Install the filter(s) (gasket side down, airflow arrows up, filter labels in front) It is good
practice to lift the filter(s) by the grab handles as you slide them over the top of the hood to
avoid damage to the bottom filter gasket. Ensure top filter aligns with properly placed
bottom filter on all sides.
6. Once the filter(s) are in place inspect the mating of the gaskets to the surface. Ensure no
cables are caught and no gasket damage exist.
7. Hand tighten the four knobs at the top of the fan unit in an even manner in the sequence
shown until filter(s) are sufficiently sealed.
(NOTE: Do not tighten a single knob more than one turn at a time).
Grab Handles
Grab Handles
1
2
3
4

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8. Before operating your unit, use the following checklist to make sure the filters are properly
installed.
All filters are inserted into the chassis to the same degree; none protrudes more than
the others.
There is no visible air space between the filters.
9. If an adjustment to the filters is required:
Loosen the filter screws on top of the fan unit to allow movement of the filters.
Make sure all filters are inserted into the chassis to the same degree, presenting a
uniformly even face.
4.8 Filter Cover Installation
1. Place the filter cover over the front of the filter bay enclosing the filter(s) and the unit legs.
2. Secure the cover with the two thumb-screws at the rear of the rear of the cover on each side.

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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4.9 Ordering Replacement Filters
Your unit ships with the filters noted on a sticker attached to your unit. Refer to that sticker when
ordering replacement filters.
4.9.1 Filter Part Numbers
Filter Type
Part Number
HEPA
AH-HF
ULPA
AH-UF
Carbon
AH-CF20
Acid Gas
AH-AG20
Mercury
AH-M20
Aldehyde
AH-AL20
Ammonia
AH-AM20
Blended
AH-B20-50/50
Wear appropriate personal protective equipment (PPE)
when replacing or handling used filters.

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5.0 Maintaining the Fan/Filter Chassis
5.1 Motor Maintenance
The motor in your hood does not require significant routine maintenance.
If there is noticeable fan vibration:
1. Disconnect the unit’s power supply.
2. Inspect the fan blades and chassis interior for particulate build-up.
3. Remove the particulate build-up with an application-appropriate process. Consult Sentry Air
Systems on this process.
4. Connect the unit’s power supply, then turn on unit.
5. If vibration is evident after particulate removal, contact us for additional assistance:
713.690.2153 or [email protected].
5.2 Cleaning your Hood
•Clean up spills immediately.
•For general cleanliness of your hood, use a non-marring cleaner like the one in section 5.2.1.
Detergent and water can also be used.
•To disinfect the surfaces of your hood, use a cleaner like the one noted in section 5.2.2.
•After cleaning the hood, make sure all parts are dry before operating.
5.2.1 Clean and Polish Pack (SS-000-PK)
Unplug this equipment before performing maintenance or
replacing filters.
Never use acetone or other corrosive solvents on the hood or on
the lid. These substances mar plastics.
When cleaning your hood, use personal protective equipment
(PPE).
This clean and polish kit is designed for use on
acrylic and polycarbonate. Other cleaning
solutions have the potential to scratch or mar
these materials.

Sentry Air Systems Inc. AirHawk DCH Hoods | Operation and Maintenance Manual
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5.2.2 CaviCide® Surface Disinfectant (SS-025-CSW)
CaviCide w/ 25 low particulate producing wipes SS-025-
CSW. Surface disinfectant and decontaminant cleaner.

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6.0 AirHawk Equipment
Your AirHawk unit will come equipped with the controls discussed in the following sections. Contact
your Sentry Air Systems rep with any questions regarding their usage.
6.1 Sentry AirHawk Control Console
1. Master Power Switch: power it on by pushing it on in the UP position. The switch will illuminate.
Turning off the Master Power Switch will cut power to the entire unit.
2. System Fuse
3. Runtime Reset: (Filter Runtime) Will reset the Filter Time (Right Display, Top Row) to 0.
4. Light Switch/Dimmer: Push the UP arrow to turn on and incrementally brighten the hood light and
push the DOWN arrow to incrementally dim and turn off the hood light.
5. Illuminated Filter Alarm: When AutoSentry mode is enabled, this light will illuminate when the
airflow cannot meet the demand of the airflow setting.
6. Audible Filter Alarm: When AutoSentry mode is enabled, an audible alarm will sound when
airflow cannot meet the demand of the airflow setting.
7. Left LCD display: This display reads Airflow, Temperature, Relative Humidity (RH), and fan
speed data.
8. Right LCD display: This display reads filter usage time, pressure and timer data.
9. Auto Sentry: When enabled the fan will automatically maintain a given airflow which is selected
through the “FLOW” buttons. To increase airflow push the UP arrow on the flow and the fan speed
will gradually increase to maintain it. Pushing the DOWN arrow on the flow and the fan will
gradually decrease to maintain it. Any interruption in airflow such as opening the front window or
blocking the hood access area will cause an automatic change in fan speed until the set airflow in
feet per minute (FPM) is met. (NOTE: Due to imperfections in flow the FPM settings is ± 10% of
FPM in AutoSentry settings).
10. Units: Pressing this button will toggle between Imperial and metric units.
11. Flow: With AutoSentry disabled the flow arrows will control the fan speed. Push the UP arrow to
turn the fan on and incrementally increase the fan speed up to 100%. Push the DOWN arrow to
1
4
2
5
8
7
6
3
12
13
10
9
11

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incrementally decrease the fan speed to 0%. Turn on “AutoSentry” and the flow control changes
your desired airflow and the fan speed will gradually change to meet it.
12. Process Timer Clear: After timing a process with your unit this button will clear it back to 0.
13. Process Timer Start/Stop: Push this button at the beginning of a hood process and it will count up
from zero. Press this button again and it will stop the timer.
6.2 Front Window Hinge Adjustment
Throughout the life of your AirHawk hood it may be necessary to adjust the front window
hinges. The window hinges are designed to hold the window in the up position and slow the
window should it be accidently knocked down into the closed position. They are not however
designed to hold the window in a straight horizontal position.
1. To tighten the friction on the hinge which will better hold the front window; turn the hinge
adjustment screw clockwise with a #2 Philips screwdriver.
2. If the hinge it too tight for your preference the turn the adjustment counter-clockwise to
loosen the grip.
NOTE: All hinges on the hood should equally be adjusted in the same manner.
Caution: Do not loosen the hinge tension screws to the point that the lid will easily and
quickly fall from an open position. Personal injury or damage to product or equipment
may be possible.

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7.0 AirHawk Specifications
All specifications are nominal and subject to change without notice.
Model AirHawk30 –30” Wide
Hood Dimensions
Outer Dimensions: 24" D x 31.5" W x 25" H
Inner Dimensions: 23.7" D x 29.5" W x 23.75" H
Access Area: 29.5 ”W x 9.25” H
Hood Material
Hood:16ga Carbon Steel w/ polyester epoxy coating on all surfaces.
Front: 0.250" Clear Polycarbonate
Blower Material
18 ga. carbon steel w/ polyester epoxy coating.
Motor
Fractional Horsepower
Total Weight
Approx. 81 lbs
Electrical
115/1/60, 2 amps
Sound Level
61 to 66 dba (Blower Speed: Low to High)
Available Filter
Efficiencies
HEPA Filter: Up to 99.97% efficient on particles 0.3 microns and larger.
ULPA Filter: Up to 99.9995% efficient on particles 0.12 microns and larger.
Activated Carbon & Specialty-Blended Filters: Efficiency varies per chemical.
Warranty
Limited 12-month warranty from date of shipment on defects due to materials
or workmanship.
Max Operating
Temperature
Not to exceed 170 degrees Fahrenheit
Model AirHawk40 –40” Wide
Hood Dimensions
Outer Dimensions: 24" D x 41.5 W" x 25" H
Inner Dimensions: 23.7" D x 39.5" W x 23.75" H
Access Area: 39.5” W x 9.25” H
Hood Material
Hood: 16ga Carbon Steel w/ polyester epoxy coating on all surfaces.
Front: .250" Clear Polycarbonate
Blower Material
16 ga. carbon steel w/ polyester epoxy coating on all surfaces
Total Weight
Approx. 88 lbs
Motor
Fractional Horsepower
Electrical
115/1/60, 2 amps
Sound Level
61 to 66 dba (Blower Speed: Low to High)
Available Filter
Efficiencies
HEPA Filter: Up to 99.97% efficient on particles 0.3 microns and larger.
ULPA Filter: Up to 99.9995% efficient on particles 0.12 microns and larger.
Activated Carbon & Specialty-Blended Filters: Efficiency varies per chemical.
Warranty
Limited 12-month warranty from date of shipment on defects due to materials or
workmanship.
Max Operating
Temperature
Not to exceed 170 degrees Fahrenheit