Installing ice machines

[Milk man]

On a new construction project, who is responsible to hook up the water, drain, and electricity to the machine.

[icemeister]

That depends on the job. If it's plan & spec, then the details should be spelled out on the plans or in the written specifications as to what is to be done and who is to provide it.

If not, then you'd better find out such stuff beforehand and make it all very clear in your quote.