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EN779:2012 & Eurovent Energy Efficiency Classification. Steve Devine. Eurovent Energy Efficiency Classification. Energy rating system using EN779:2012 Advantages Independent label Makes filters comparable Escape price discussions Talk about IAQ and Energy Select best solution

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Steve devine

EN779:2012 &Eurovent EnergyEfficiency Classification

Steve Devine

Eurovent energy efficiency classification
Eurovent Energy Efficiency Classification

  • Energy rating system using EN779:2012

  • Advantages

    • Independent label

      • Makes filters comparable

    • Escape price discussions

      • Talk about IAQ and

      • Energy

    • Select best solution

      • Energy saving (Eurovent)

      • IAQ (EN779:2012)

      • Minimum efficiency (EN779:2012)

What s needed to be able to classify filters
What´s needed to be able to classify filters

  • EN779:2012 test rig

  • ASHRAE Dust feeding

  • EN779:2012 Test Report

Steve devine

Airborne Particulate Size

Outdoor air


Average Diameter ~0.08mm

Average Diameter ~7.7mm

100x difference in size, so what does loading with ASHRAE dust tell you?

Answer: How your filter will perform when it is challenged with ASHRAE dust,

Do you have ASHRAE dust in your system???

Ashrae dust p vs real life p
ASHRAE Dust ΔP vs. Real Life ΔP

Actual Average ΔP




DP ASHRAE Dust = 0.63” WG

DP ”Real Life” = 0.46” WG

Simple averaging ΔP

(DPI+DPF)/2 = 0.75” WG



So is ashrae dust a problem
So is ASHRAE Dust a Problem?

  • It is an acceptable compromise

  • This procedure is a Method of Calculation using existing test data

    • EN779 uses ASHRAE test dust

    • Data is available

  • Generally, a filter with a “better” ASHRAE loading curve will have a lower energy cost

    • Better than any alternative method available at this time

    • Not 100% true

    • LCC Green will correct the ones that fail

The system is available in europe
The system is available in Europe

”Low energy consumption in combination with a high indoor air quality.”

Ashrae and iso


    • Guideline Project Committee is forming

      • Proposed method is similar

        • Uses ASHRAE dust loading

      • Proposed method is different

        • Data from 52.2, ISO 16890 or EN779

    • 4-5 years minimum from a document

  • ISO

    • Started a Work Item in 2011

    • Stopped the WI in 2012

      • Project is on hold

    • If it gets started again, it will also be 4-5 years from a document

How would our usa products rate
How would our USA products rate?

  • All Values are calculated kWh per Eurovent 4/11

How would some usa products do in eurovent 4 11
How would some USA products do in Eurovent 4/11?

  • The lower the kWh value the better the performance

  • Why are any of you buying a 12” HF ES????

  • Difference between 4V and 2V

  • AAF VXL has a better kWh than the HF ES, but not in the field…

  • Aeropleat – Not Good, but What – 30/30???

  • AAF PP has same rating as a 30/30…

The biggest issues facing ashrae and iso
The biggest issues facing ASHRAE and ISO

  • The USA uses pleated filters

    • Based on energy, pleats are horrible products

  • The Eurovent methodology shows NO differentiation between any pleats

    • The AP3 and 30/30 are both a “G”

    • The AAF PP is also a “G” at ½ the 30/30 price

  • This is the problem facing ASHRAE and ISO

    • The ASHRAE and ISO methods will have to show differentiation of pleated filters

    • Similar to why there is an Arrestance test method and a Particle Removal Efficiency test method – different levels of filtration