why chiller 1,2,3 trip

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chiller 1,2,3
trip at the same time
what to do..
check setting point for pressure 
pump..
reduce setting point at BAS (Building Automation system)
for valve can reduce performance 
because chiller already have primary pump
secondary pump just for support..
pressure reduce ..chiller dont have problem with water flow...
agree..hihi
coz..big chiller performance at 50% both chiller..
em..light load ...can start running only 2 chiller (1 big and 1 small chiller)



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