Mcquay centrifugal chiller not starting due to low oil Delta temperature

[Papai Santra]

Hello 👋 Everyone
Mcquay centrifugal chiller not starting due to low oil Delta temperature 🌡️

What is the problem

[ehsx]

Oil must be ~ 30*f above evap saturated.

Usually occurs on morning start up when warmer bldg water returns to chiller. Heater has to raise oil sump temp before starting.

Start cw pumps earlier, check oil sump heaters.

[Papai Santra]

Thanks