Dear your file is not downloading, however get yourself an acoustic engineer to measure up and gives you recommendation if you are on execution phase and if on design it depends on how the return and supply ducts are and total CFM of AHU plus its configuration there is a lot of things you should...
Take it easy, I recommend you first not to freak out then take each unit alone and do simple search and go to basics as in real life not all what you studied has to be there its much simpler.
Do mistakes and learn from it, and don't worry too much all problems has solutions even complex problems...
for such buildings, the main concern of tenants is bills and specially AC bills, from my experience I would say DX units for each apartment is better than hydronic central system due to accumulative costs for the system requirements to cool an area yes in general the COP of a hydronic system is...
I have red many posts referring to fractures / failures (visible or non-visible) in pipes without any reasons, actually the main reason for pipe failure is the hammer action (water shockwave) which will multiply the pressure in a random section of the pipe causing failures, this phenomenon is...
