[Trace-users] trane trace

[Julia Beabout]

For cooling: I usually  use a setpoint between 72F and 78F depending on the spaces served with a driftpoint of 85F.
For heating: I usually use a setpoing between 68F and 72F depending on the spaces served with a driftpoint of 65F.
For unconditioned spaces I use a very high cooling set point (95F or higher) and a very low heating set points (35F or lower....depending on your weather location) so that the software won't generate any (or very minimal) loads for these spaces.
I don't believe ASHRAE App G has any specific thermostat set point requirements.  You just need to use something reasonable and they have to be the same in proposed and baseline models.  A possible exception to this would be if you are using different thermostat setpoints to simulate the reduced energy associated with an unusual systesm such as a displacement ventilation system or radiant cooling or something.  There may be some archived info on that approach in the bldg-sim archives.
Hope that helps.
J

----- Original Message ----
From: Jim Pagliaro <Jim at celticenergy.com>
To: trace-users at lists.onebuilding.org
Sent: Wednesday, June 18, 2008 3:25:20 PM
Subject: [Trace-users] trane trace


hi,
 
i have a question about setting "driftpoints" in the trace program.  i am doing a base case VS actual design scenario model and i was wondering what anyone normally uses as cooling/heating dry bulb temps and thermostat driftpoints when they are modeling a scenario based on simple ASHRAE guidelines.
 
jim
 
 
 James Pagliaro
 Energy Engineer
 860.882.1515
 860.882.1593 fax
 413.246.7789 mobile
 jim at celticenergy.com
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