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10-15-2010, 01:08 AM #1
Honeywell F500 whole house filter
Went to a very particular customer's house the other day and she had one of these mounted as the instuctions show in the return. It was wired to run all the time, no "sail" switch. This customer is very sensitive to indoor air and willing to spend for comfort.....
I am at a loss to understand how a unit installed with the inlet and outlet less then 2 feet apart benefits by running 24/7.
10-17-2010, 08:10 PM #2
My opinion, supported by published research and by my own measurements with a particle counter, is that the best use for a HEPA filter is to bring in fresh air and prevent the infiltration of dust and allergens with the constant outflow of air.
10-21-2010, 06:44 AM #3
So bypass installation needs to only be on when the fan is on. I was staring at that thing running in her garage getting pissed. I just thought it was wrong, but had no data at all but my own common sense to back it up.
I don't think we are going to get the $$ from her at this stage in the game to retro fresh air in and fresh air out duct, but at least I can wire that thing to run only when the blower has a call.........thanks.
10-28-2010, 05:36 AM #4
She's lucky to have someone who cares working on it.
10-28-2010, 09:22 AM #5The premise of ventilation is that the OA is clean or of sufficient quality to be used for dilution. Traditional ventilation is somewhat being threatened by the fact that the EPA is changing the requirements for outdoor air quality which is creating non-attainment zones in what is now becoming a significant portion of the country. That means that buildings in those areas will need to clean up the OA before they bring it into the building.
Genesis Air Inc.