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Constant Volume Product Line

Constant Volume Product Line. Your Constant Volume Supermarket. What do they do?. Limit Flow to a preset volume regardless of static pressure. (over their effective range)

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Constant Volume Product Line

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  1. Constant Volume Product Line

  2. Your Constant Volume Supermarket

  3. What do they do? Limit Flow to a preset volume regardless of static pressure. (over their effective range) They all feature some sort of moveable feature that reacts to the changing pressure/velocity to adjust the free area thereby keeping volume constant. Any place you need a calibrated maximum airflow.

  4. Applications Supply Exhaust Bath/Kitchen Exhaust Correct for Stack Effect Force Return from stubborn areas • Outside Air Delivery • Correct Over-Supply Issues due to ductwork limitations • Simplify air balance Building Types • Tall Buildings • Hospitals • Schools • Office Buildings • Hotels/Motels • Condominiums

  5. CVR - Constant Volume Regulator • Precision molded body UL-94V-0 rated material • UL-2043 • Soft pliable edge seal • Free area engineered both in size and shape • Aero-Gate floats up as airflow increases • Limits total flow over pressure range (0.2 to 0.8 InWC) • Low- Pressure and High-Pressure units available • No Power/ No Sensors – Just clever shapes

  6. Size and Flows CVRs come in several flow ranges per diameter Choose a Diameter and Range ex. 6MH (60-105 cfm) Static Pressure Range 0.2-0.8 InWC Accuracy Set pt ±10% Set pt ±15% below 50CFM

  7. Performance Data • Read pressure across the bottom axis then up to trace that reflects your settings • Example @0.68 InWC we would expect the CVR to pass approximately 149 CFM • Remember the units are indexed in M3/hr Conversions Volume M3/hr / 1.7 = CFM Pressure 250 pa= 1 InWC

  8. Multi configurations • All fittings are made from heavy 24-gauge steel • Fittings designed to be as low-profile as possible • Custom fittings are our specialty • One stop Air Distribution shopping

  9. CVP – Constant Volume Regulator Plus • Precision molded body UL-94V-0 rated material • UL-2043 • Soft pliable edge seal • Tool-free Flow Adjustment • Limits total flow over pressure range (0.2 to 2.0 InWC) • 4” and 5” 25 to 130 CFM • 6” 50 to 275 CFM • Anti-Microbial Plastic • No Power/ No Sensors • Made in USA

  10. CVP Performance Curves 25 to 130 CFM 50 to 275 CFM

  11. Multi configurations • All fittings are made from heavy 24-gauge steel • Fittings designed to be as low-profile as possible • Custom fittings are our specialty • One stop Air Distribution shopping

  12. UL Rated Fire Assembly! • Young Regulator can now offer a UL Rated Assembly: • Constant Volume Regulator • Enclosure • Dynamic Fire Damper • Grille • Complies with: • UL 2043 Heat and Visible Smoke • UL 555C Dynamic Fire Damper • UL – R38089 • UL – 8218 CVPFD

  13. Constant Volume DampersRound

  14. Constant Volume Dampers Adjustment Insert a 2 mm allen key through the small hole in the top of the adjustment device. CW Increases the flow CCW Decrease flow The device is calibrated in M3/hour (CFM soon) M3/hr divided by 1.7= CFM

  15. Constant Volume DampersRound Choose your Size and Flow Rate • Min value is approximate and driven by Pressure drop.

  16. Constant Volume DampersRectangular

  17. Size and Flow Rates Heights above 12” are double deckers

  18. Savings Potential Case Study Limiting Exhaust to 62.1 requirements Consider a 10-story condo block with a central exhaust chase and a rooftop ventilator (in Boston, MA). With an open 6” exhaust duct @ 0.1inwc, it will cost roughly $226 annually to condition the air required to replace the exhaust. If, because of proximity to the fan, stack effect, and wind loads, the pressure at the top of the chase is 0.4inwc instead, then Cost= $488. A CVR will save $262 annually!

  19. Variable Speed Motors More Considerations IAQ Indoor Air Quality The CVR controls exhaust across all of the spaces. Ensure that air changes happen! • If the motor changes speeds, pressure will change and therefore flow from the space will change • Not if you have CVRs installed!

  20. Your Airflow Multi-Tool Limit Airflow into or out of rooms Independent of pressure* Ventilation Make-up Air Intake Control Variable Speed Motors * Over part’s effective range

  21. Think Young!

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