I hace a WMC aprox 135 ton single comptrssor. It has been tripping on Low evap pressure. I live in the north and its cool. The tower is controlled from chiller and is single fan driven by VFD. What should the lift be set up to default is 30 i think. Is there a upper limit. I was wondering also if I lower the min amps below 10% as long as I keep motor cooling.

I would like to raise the lift as the condenser sightglass is full and evap is empty and I think were stacking refrigerant in the condenser. It has tripped off on Low evap pressure a few times.