Mechanical Room Shunt trip

[MPcontrol1]

I have a room that holds about 10 pumps of all sizes, 3 chillers (2 centrifugal (R-123) , 1 Screw (R -134a), A HX, 6 VFD drives and A MCC in the central plant. When you design for a shut down or panic button is the intent on shutting down the Chillers themselves or is the intent on shutting down the Central plant as a whole? Keep in mind i have a Refigerant monitor Whith bells and whistles and a 24 hour operting ex fan for the emergency ventilation. I would think you would want the plant to shut down not just the chillers themselves. Any help would be appreciated

thank you

 

[marcoh]

I thought panic buttons were for boilers and gas fire equipments etc in case of a fire or gas leak? Where I live it is hot and we never install boilers so never install panic buttons.

With electrical equipment the danger would be electrocution so a panic button should cut off all electrical supplies.

Note that suddenly cutting power to chillers does have potential for damaging the equipment!

 

[RossABQ]

The hazard is the chillers. No code requirement for shutting the pumps down that I am aware of.