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probable cause for reduction in chiller performance

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datta1984

Chemical
Joined
Sep 18, 2013
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1
Location
SA
Dear All,
I ma having an issue in 2000 TPD Oxygen plant with an additnal chiller unit in preecooling system for addtional cooling the chill water going to DCAC tower. We are having 3 chillers in line with two running & one as standby.

Recently we are facing issue in one chiller where the chill water inlet & outlet to chiller is same. we have checked the freon level which is ok.the arrangement for chiller is an standard design with
Screw compressor-separator-condencer-evaporator.

Can anybody suggest some porbable causes .
 
broken gasket allowing water to bypass internally
 
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