No max OCPD device listed

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Wirenut21880

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Location
Yakima, Washington
Occupation
Electrician
I've got a chiller unit I'm hooking up that is 480V 3 phase with a nameplate FLA of 55.1. There is no max ocpd listed on the nameplate. I take 55.1A X 125% because it is a motor load and probably continuous duty which puts me at 68.875A. Do I have to go to the next size up breaker of 70A and size my wire to 68.875? I'm concerned that inrush of the motor might trip the breaker so I'd like to go higher than a 70A, but not exactly sure what the rule is. If it was a single motor I know I can go off of table 430.52 but does that same rule apply to this chiller unit that has other components in it besides just a motor and starter?
 
I'm curious if this a new modern chiller. I can't imagine any modern chiller with a NRTL listing not including information for max OCPD and MCA as required by the standards for such equipment.
 
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