Labconco Protector XStream Laboratory Fume Hoods 9840803 - Manual (Page 25)

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Chapter 4: High Performance Features and Safety
over the air foil, air continues to enter from under the air
foil and through the Clean-Sweep openings.
10. Streamlined corner posts provide maximum visibility and
the flexibility to add services after installation.
11. All hoods are factory prepared for up to 8 service
fixtures.
12. Duplex electrical receptacles are mounted on the right and
left corner posts as requested. Receptacles are factory-
wired to hood single point junction box.
13. Upper Dilution Air Supply (not shown) provides bypass
air from above the work area. This feature constantly
bathes the sash interior with clean air and reduces chemical
fumes along the sash plane, near the critical breathing zone.
Five to ten percent of the required air volume is introduced
through the upper dilution air supply to ensure maximum
containment. The upper dilution air supply perforations
sweep the upper interior to reduce stagnant pockets of air in
the upper interior.
14. Shipped fully assembled and eliminates the need for
costly onsite assembly.
15. Accessory Guardian™ Digital Airflow Monitor or
Guardian Jr. Monitor continuously monitors face
velocity. An audio/visual alarm alerts the user to low
airflow conditions. The right corner post is factory
prepared to accommodate the Guardian Monitor (sold
separately).
16. Optional Energy Reducing A-Style Combination Sash
Models. These combination sashes allow the operator to
use the hood with sashes either half open vertically or
horizontally to conserve energy. Optional sash stops
prevent raising the vertical sash above the half-open and
fully-closed positions unless manually defeated by the
operator.
17. Frame of Epoxy-Coated Steel and Aluminum is durable
and corrosion resistant.
18. Exhaust Connection. The hood features 12" (12.75" OD
pipe) exhaust connections sized to allow for a minimum
static pressure loss through the hood structure while
providing a good transport velocity through the exhaust
system.