Hi everyone, I am new here and I hope someone can help answer a question.
I work in an office that currently has a Lennox roof top unit installed on the second floor (above my office) in an open space that serves as a storage area for automotive supplies. the entire space is open to the auto repair area.
I am told that the unit is currently pulling in shop air and then blowing that directly above my office via an open duct tube (no ceiling tile where it comes down).
As far as I am told by the owner of the business, the a/c filter does not get replaced and he simply hoses it off from time to time. I also have heard from another employee that he was informed by an HVAC technician that he needed to correct the air intake/location of the unit. This was prior to my employment, and I am now just being made aware. Is it possible to have a rooftop unit indoors, and where exactly should the fresh air intake be located.
As far as I can gather is that inside the office we are breathing recycled air directly from the automotive repair shop, the unit should not be inside the building and this is a serious issue that needs to be addressed.
Thank you for any advice you can provide. I will be addressing this with the owner, however I'd like to have some knowledge about this when I speak with him.