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Troubleshooting Chiller/Cooling Controls

asked 2015-06-01 16:26:18 -0500

Brian C
550 ●1 ●9

updated 2017-05-17 12:40:05 -0500

flag of United States of America

4436 ●5 ●17 http://bleedinggreenna...

My Open Studio model currently has +3000 hrs of unmet hours during cooling operations. My chiller is operating and I've even hard sized the chiller to match design documents for capacity yet the zones are still under-cooled. The problem seems to reside in how the chiller is operating as all zones are chronically under-cooled. What cooling specific control aspects do you recommend me to check at the zone/plant level? Thanks.

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answered 2015-06-09 08:31:10 -0500

Kyle Benne
6027 ●4 ●9 https://www.openstudio.net/

Here is the standard reply about unmet hours. https://unmethours.com/question/359/w... If you go through all of those and still have a problem then consider sending your model to us to have a look.

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Also try the Unmet Load Hours Troubleshooting measure which can be a helpful starting place, although it will increase the sim time.

MatthewSteen ( 2015-06-09 10:09:29 -0500 )edit

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Asked: 2015-06-01 16:26:18 -0500

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Last updated: Jun 09 '15

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