Fun with Laboratory Exhaust Systems!

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Across
  1. 2. Type of coil that is used for sensible only energy recovery in lab systems
  2. 5. Greenheck’s name for piezometer ring for airflow measurement
  3. 6. A windband/nozzle type that induces ambient airflow to reduce the concentration of fume exhaust particles.
  4. 11. Used to cut off the fan from the plenum to allow for maintenance or prevent short circuiting in redundant fan systems
  5. 13. Ability of a fan system to maintain total flow volume when an individual fan is shut down
  6. 15. Device used to protect against rogue shaft voltage and bearing currents motor
  7. 16. Inline device used to reduce the sound at the discharge of fan
  8. 18. A, B, or C resistance reducing the chance of ferrous materials from touching.
Down
  1. 1. Cables used to hold down equipment that ARE NOT needed on Greenheck's standard configuration lab fans which are rated to 125mph without their use
  2. 3. A section of the assembly used to increase the overall height
  3. 4. Greenheck’s lab fan series for exhausting lab & fume exhaust at a high discharge velocity & plume rise – hint: magnitude & direction
  4. 7. Variable ______ nozzle allows for changing the cross-sectional area of the fan’s stack
  5. 8. Optional electrical device used to modulate the frequency input and speed of a fan motor
  6. 9. Air control device on a plenum that is used to control the amount of air coming from the lab space
  7. 10. Greenheck’s two-part corrosion-resistant polyester coating for lab fans
  8. 12. _____ Z9.5 establishes minimum requirements and best practices for laboratory ventilation systems
  9. 14. Though not a full lab fan, it is a utility set fan with a pre-engineered stack for increased discharge height from Greenheck
  10. 17. The top of a lab exhaust fan designed to create a high discharge velocity & plume rise, occasionally dilution