4 ms·

Could they maybe turn it down from 10pm to 7am? Or put some lube on the device?

• mschuster91 5y ago
  > Could they maybe turn it down from 10pm to 7am? They could, yes, but that depends on how much money the constructors spent. Some will go for the really fancy stuff that the janitor can fully control from their office, with everything relevant (air inlet and outlet temperature, tenant-individual air consumption, CO2 levels, ...) being measured and every tiny little actor (valves, bypasses, flaps) controlled in a carefully balanced flow that achieves optimal efficiency, while others will go for extremely dumb systems that offer little more control than "here's the circuit breaker, if you want more control you gotta climb to the roof and fiddle with the valves". > Or put some lube on the device? I doubt the problem is lube (unless it's actively creaking, and at that point the building management would be well advised to have the system inspected because that's a fire risk). Usually the problem is inadequate dimensions, caused (again) by financial decisions... basically, similar to a PC, the larger the fan the less RPM it needs to haul the same amount of air, and the less RPM it runs the quieter it is. Larger fan systems need more space (obviously) and are more expensive to purchase.
  • greggman3 5y ago
    Well, regardless, AFAIK it's illegally loud according to the document linked above. So, if I'm correct, regardless of what they have to do and how much it costs they should be required to fix it.