Mcquay freeze stat alarm

[sonmel]

I am working on a chiller that goes out on freeze stat alarm at night. in the morning we come in and reset the control and the unit works fine all day. wondering if anybody has any suggestions. Thanks

[Swampy]

I Had A Similar Problem. Found The Unit In Local Control With A Duff Flow Switch. The Bms Turned The Pumps Off At Night But Unit Ran On.

[icecube51]

check the settings on the board, probebly a probe or temp sensor.

Ice

[sonmel]

thanks guys I will look at these when I go back.