[Equest-users] Waterside Economizer

[Greg Collins]

Charles,

 

I haven't done this myself, but have an idea that you might try..  Set
up your chilled water loops so that the chiller and heat exchangers are
in parallel.  Then, set up equipment control with a schedule so that the
chiller is disabled and the heat exchanger enabled when the outside air
conditions are suitable.  You may have to put the hourly ourside air dry
bulb/ wet bulbs temps in Excel to crunch and figure out the schedule.

 

Again, I haven't had to do this before so there may very well be a
simpler approach to modeling a waterside economizer, but I think this
would work.   Let me know how you make out.

 

Greg Collins
GLUMAC | (949) 833-8190

 

From: Charles Land [mailto:cland at geo-marine.com] 
Sent: Wednesday, June 02, 2010 8:26 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Waterside Economizer

 

Does anyone know a way to do waterside economization other than through
the airside tabs.  The building I'm currently modeling has older
multizone systems with a water to water heat exchanger for waterside
economization.  Equest does not give the option for waterside
economization for multizone units.  I thought there may be a way to
create a heat exchanger and accomplish this through a water side route
but have so far been unsuccessful.

 

 

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