Hi

I am quite new to this field and industry and currently handling this type of chiller.

We have daily recording on several parameters of the chillers and some of them are like :

1) Saturated suction pressure / temperature
2) Saturated discharge pressure / temperatuer
3) Discharge superheat
4) Motor temperature
5) Gas discharged temperature
6) Oil pressure
7) Oil differential pressure
8) Economizer Pressure

Ive tried to find what's the normal values or range that I should expect in normal operations in its manual but couldn't find one. Anyone knows where can I find them?


Secondly, what does the oil differential pressure means ?And what does it for?


thirdly, i tried to find what's the function of the economizer and how does it works. But couldnt find any resoruces expect at youtube by indians. But I cannot understand their language unfornately.

Thank you so much!