Depends on your experience.
Originally Posted by BManz
If you worked at mcdonalds, you get shipped straight to the "intimidator" (25 year install vet, works 10 hour days minimum, and he's a nutjob) as a helper.
If you have some install experience, you go as a helper to a lead guy.
If you were a service tech, you run a few days with a guy, and then go service.
"Better tell the sandman to stay away, because we're gonna be workin on this one all night."
"Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."
"Just get it done son."