Transcript Slide 1

EN779:2012 &
Eurovent Energy Efficiency Classification
Steve Devine
Clean air solutions
Eurovent Energy Efficiency Classification
Clean air solutions
© CAMFIL FARR 16/07/2015
– 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)
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• Energy rating system using EN779:2012
• Advantages
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What´s needed to be able to classify filters
• EN779:2012 test rig
• EN779:2012 Test Report
Clean air solutions
© CAMFIL FARR 16/07/2015
• ASHRAE Dust feeding
Airborne Particulate Size
Outdoor air
Average Diameter ~0.08mm
ASHRAE Dust
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???
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ASHRAE Dust ΔP vs. Real Life ΔP
Actual Average ΔP
DPF
DP ASHRAE Dust = 0.63” WG
Dx
DP ”Real Life” = 0.46” WG
DPI
Simple averaging ΔP
(DPI+DPF)/2 = 0.75” WG

1.30
1.20
DPF
1.10
Resistance
1.00
0.90
0.80
0.70
0.60
Straight Line
0.50
ASHRAE Dust
0.40
DPI
0.30
"Real Life"
0.20
0
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So is ASHRAE Dust a Problem?
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• It is an acceptable compromise
• This procedure is a Method of
Calculation using existing test data
– EN779 uses ASHRAE test dust
– Data is available
– Better than any alternative method
available at this time
– Not 100% true
– LCC Green will correct the ones that fail
Clean air solutions
© CAMFIL FARR 16/07/2015
• Generally, a filter with a “better”
ASHRAE loading curve will have a
lower energy cost
© CAMFIL FARR 16/07/2015
”Low energy consumption in combination
with a high indoor air quality.”
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The system is available in Europe
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ASHRAE and ISO?
• ASHRAE
– Uses ASHRAE dust loading
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– Guideline Project Committee is forming
• Proposed method is similar
• Proposed method is different
– Data from 52.2, ISO 16890 or EN779
– 4-5 years minimum from a document
– 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
Clean air solutions
© CAMFIL FARR 16/07/2015
• ISO
G4 /
MERV 8
M5 /
MERV 9-10
M6 /
MERV 11-12
F7 /
MERV 13
F8 /
MERV 14
Min Load
350g
250g
250g
100g
100g
≥ 35%
≥ 55%
0 – 1200
0 – 1600
Min Eff
A
0 – 600
0 – 650
0 – 800
B
>600 – 700
>650 – 780
>800 – 950
>1200 – 1450 >1600 – 1950
C
>700 – 800
>780 – 910
>950 – 1100
>1450 – 1700 >1950 – 2300
D
>800 – 900
>910 – 1040
>1100 – 1250 >1700 – 1950 >2300 – 2650
E
>900 – 1000
>1040 – 1170 >1250 – 1400 >1950 – 2200 >2650 – 3000
F
>1000 – 1100
>1170 – 1300 >1400 – 1550 >2200 – 2450 >3000 – 3350
G
>1100
>1300
>1550
• All Values are calculated kWh per Eurovent 4/11
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>2450
>3350
© CAMFIL FARR 16/07/2015
Filter
Class
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How would our USA products rate?
Efficiency
kWh
Eurovent Rating
Hi-Flo ES, 22”
M13 (F7)
1197
A
Hi-Flo ES, 12”
M13 (F7)
2195
E
Durafil ES M13
M13 (F7)
959
A
Durafil 2V M13
M13 (F7)
1576
C
AAF VXL
M13 (F7)
1117
A
Riga-Flo
M13 (F7)
1666
C
AP-3
M8 (G4)
12980
G
30/30
M8 (G4)
4196
G
AAF PP HC
M8 (G4)
24417
G
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…
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© CAMFIL FARR 16/07/2015
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Filter
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How would some USA products do in Eurovent 4/11?
The biggest issues facing ASHRAE and ISO
• The USA uses pleated filters
• The Eurovent methodology shows NO
differentiation between any pleats
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– Based on energy, pleats are horrible products
– The AP3 and 30/30 are both a “G”
– The AAF PP is also a “G” at ½ the 30/30 price
– 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
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© CAMFIL FARR 16/07/2015
• This is the problem facing ASHRAE and ISO
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© CAMFIL FARR 16/07/2015
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