Hi,
We are working on a Project which is a large scale Manufacturing space. The Project is planning to install a direct only Evaporative Cooling system which draws in Outside air directly, which passes via a cooling pad and is ducted into the space. Additionally, we are planning to have exhaust fans also on the opposite side. Is providing MERV 13 filters mandatory for this System?
If so, where would we provide the filter? Our Evaporative Cooler is basically a Box with a Fan in it. The Box has Evaporative Cooling pads on 3 sides and a supply duct on the fourth. The Fan will draw in air from via the Cooling Pad (which is misted with Water) and push it into the duct. Providing the MERV 13 filter in the duct might result in condensation in the filter's openings and not recommended. We are not sure how best to approach this particular requirement.
Thanks for any support.
Dionisio Franca
DirectorWoonerf Inc.
30 thumbs up
December 28, 2020 - 6:20 pm
For thi prerequisite, regarding OA, the filter you need depends on the local air quality (6.2.1). If the air quality is very good you need MERV 6, if you have PM 10 over the threshold, you would need MERV 10, if PM 2.5 is over the threshold, you need MERV 11.
You also need MERV 6 filters before wetted surfaces (5.8)
MERV 13 may be used for the credit Enhanced Indoor AIr Quality Strategies.
Krithikha Muthukrishnan
PartnerGreen Sketch Consultants
2 thumbs up
December 29, 2020 - 5:52 am
Thanks a lot.
We will check what the PM 10 & PM 2.5 level is and take it from there. I guess we need to install the filter before the Pad (In this case wetted Surface) & not after it.