Labconco Protecto PVC Laboratory Fume Hoods 14181 Series - Manuel (Page 25)

Chapter 3: Getting Started
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Original instructions
PRUDENCE : Le gaz naturel devrait être seulement utilisé dans
l'accessoire de service qui a été pré soudé avec des tuyaux de
cuivre. Le contenu soufré du gaz pourrait causer la
détérioration des lignes d’alimentation en cuivre standard.
Sealing the Protector Hood to the Work
Surface
When the hood has been set in place, ducted, wired, and plumbed, it should be
sealed to the hardboard work top. Materials such as silicone sealants are
recommended to seal the hood structure.
Certifying the Protector PVC 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 E: References). Labconco recommends an average face velocity at
the sash opening of 100 feet per minute. Consult Chapter 2 for proper airflow
volumes for your particular model.
Your Protector Fume Hood has been tested at the factory per ASHRAE 110-1995.
All hoods achieve an “as manufactured rating” of less than 0.05 part per million
(ppm) at 4 liters per minute (lpm); AM<0.05 (consult Labconco for individual
fume hood ratings). For “field use” ASHRAE testing contact Labconco Sales
Engineering 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.
NOTE : Les profils de flux frontal et les tests de fumée
devraient être régulièrement faits pour garantir une utilisation
en toute securité. !