Picked a new toy from work today!

I bought a IR T-30 out of Dodge dealership that was destroyed by tornado and it had 5 hp 3 phase. I bought a new 5 hp single phase for around $400. When I started it up I watched to see when it would shut off. It went past 135 psi, 150 psi,175 psi then I started getting nervous. I moved back and kept watching as pressure kept building. When it started toward 200 psi i was running to the breaker and it turned off at 195 psi. It was still climbing without even straining. I backed pressure off to 150 psi. The shop foreman told me it was running the whole shop at dealership.