Citizen L20 tripping breaker

Hi there,
Our second Citizen L20 showed up today. Hooked it up to the same 208 3 ph power that our other machine was running on hours before. When I flip the 30A breaker on the new machine it trips. Resetting the buttons on the breaker hasn't helped. Doubled checked wiring to the machine and am getting 208 across the leads and ground is good. Any ideas? Really hoping I don't need to use the 30 day return policy on this machine.

Thanks!
Will

Fixed this issue today after a few hours. I had the valve closed on the attached fire extinguisher tank. Somewhere in the machine there is a sensor for the line pressure. If it's zero it trips the breaker. Pretty heavy handed! I would figure there would be an on screen error if the tank pressure was too low, or it would put it in estop. Fully cutting the power was a surprise!