VAV FPT in eQuest

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Hi All

Has anyone had success modeling FPT with variable speed motors (PIU sys with variable flow Series terminal units) in eQuest 3.65build 7175 with DOE 2.3?

My model runs fine with constant volume flow (CV) units (the default) but crashes with variable flow units.

Also the Series box option make the thermostat "na" but request T 'stat type when variable is selected. I have tried all types to no avail.

I cannot make sense. Help please

Thanks
Melissa

Melissa Crowe, LEED AP, BEMP
Senior Mechanical/Energy Engineer
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161 Worcester Road, Suite 305
Framingham, MA 01701
O: 508.647.9200 x1225
C: 978.204.2559
cmta.com
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Melissa

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Joined: 2011-09-30
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