Labconco Protector XStream Laboratory Fume Hoods 9840803 - Manual (Page 21)

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Chapter 3: Getting Started
Certifying the Protector XStream
Fume Hood
The combination of your laboratory hood, exhaust ductwork, and
exhaust blower gives you the flexibility to change the airflow at
the sash opening of your hood. To determine the actual face
velocity at the sash opening, airflow velocity readings will need to
be taken. This should be done across the sash opening of the hood
in accordance with the Industrial Ventilation Manual section on
laboratory hoods. (See Appendix D – Reference) Labconco
recommends an average face velocity at the sash opening of 60 to
100 feet per minute for Protector XStream high performance fume
hoods. To ensure the performance at 60 feet per minute, Labconco
researchers successfully challenged the Protector XStream at face
velocities lower than 60 feet per minute, with 30 feet per minute
cross drafts, and various mannequin sensor positions. Refer to
pages 8 and 9 for proper airflow volumes for your particular
model.
Your Protector XStream Fume Hood has been tested at the factory
per ASHRAE 110-1995. All hoods achieve an “as manufactured
rating” of less than 0.10 part per million (ppm) at 4 liters per
minute (lpm); AM <0.10 (Consult Labconco for individual fume
hood ratings). For “field use” ASHRAE testing contact Labconco
Ventilation Ventures Team or Customer Service for a certified on-
site contractor.
NOTE: Face velocity profiles and smoke testing
should be done periodically to ensure safe
performance.
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