RE: [EnergyPlus_Support] Regarding the evaporative cooler + Chiller

["Griffith, Brent" <brent.griffith@xxxxxxxx>]

Use one of the evap coolers that controls to a leaving setpoint temperature, the so-called ResearchSpecial models.  These will stop conditioning if the entering conditions already meet setpoint.   Then use outside air reset setpoint manager to adjust a temperature setpoint on the cooler's outlet node.  

-----Original Message-----
From: EnergyPlus_Support@xxxxxxxxxxxxxxx on behalf of vignesh kumar
Sent: Sat 5/9/2009 6:45 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Regarding the evaporative cooler + Chiller
 
Hi guys

im actually working on a building model with both the chiller and
evaporative pre cooler in Ahu system , what i want to do is i want the
evaporative pre cooler to run when the temperature of the outsider air is
between say15 - 20 degree celcius and during that time the chiller should
not operate  and if the temperature of the outside air becomes more than 20
the chiller should operate and the evaporative pre cooler should stop , i
have figured out how to stop the chiller working below 20 degree celcius but
im having problem to configure the evaporative pre cooler to work between
these temperature , if any one knows how to configure this please let me
know


Thanks and Regards

-- 
vigneshkumar



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