[Equest-users] Natural Ventilation

[Grando, John]

Hello All,

I am trying to use natural ventilation in conjunction with a two pipe fan coil system for a residential building.  I set the ventilation temperature schedule to 70 degrees, and the usage schedule to always on (all hours = 1).  However I still have some hours where it is not turning on.  I checked one hour when I had an unmet load hour and the outdoor dry bulb was 63 degrees.  Does anyone know why the natural ventilation would not turn on.  It is obviously cold enough to do some cooling of the space.  Please see attached excel file.







John Grando LEED AP| Mechanical Engineer
Phone: 212-615-3705 | Fax: 212-615-3700
jgrando at cosentini.com

Cosentini Associates - A Tetra Tech Company
Two Pennsylvania Plaza - Third Floor - New York, NY 10121
www.cosentini.com<http://www.cosentini.com/>






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