One of the most common things we find is that not everyone is aware of code regulations and updates all of the time.
Attached is the current regulation for plumbing condensate waste in a commercial application.
This regulations clearly state what we as a mechanical contractor is and isn’t allowed to do:
The installation of a tundish and waste directly connected to a plumbing system is considered plumbing work and therefore all conditions of the Regulations and prescribed plumbing standards apply. The installation of a condensate line from any of the appliances mentioned above, to the point of discharge over a tundish with an air gap or any location other than a plumbing system is not deemed as regulated plumbing work.