so i installed 2 carrier 5 ton heat pump systems in a doctors office about a week ago. customer called today and said this is the first time the used to the heat and they tripped the main 200 amp breaker. checked both units and they are pulling normal amperage. the main feed coming into the panel box with both unit's off was 49 amps. both unit's running with back up strips engage about 110 amps total on main feed. thats everything running in the building. so way are my units tripping the breaker? well on further diagnostics i found the unit's pulling a quick 159 amps on start up. so my question is why would these bad boys pull that much on start up. i checked caps, i checked voltage drop on start up and i checked pressures on start up. everything looked fine. so i'm stumped any ideas to fix the problem would be appreciated.