modeling SCR electric heat controllers?

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Hi,
Does anyone have experience modeling SCR controllers for electric reheat in Trace?
I've tried a couple things but have not been able to accomplish it successfully yet.
If anyone has done this successfully or has suggestions on how to do it well, please let me know.

Thanks in advance for your feedback.
Julia

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Hi,
Does anyone have experience modeling SCR controllers for electric reheat in Trace?
I've tried a couple things but have not been able to accomplish it successfully yet.
If anyone has done this successfully or has suggestions on how to do it well, please let me know.

Thanks in advance for your feedback.
Julia

Julia Beabout's picture
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Joined: 2011-10-01
Reputation: 3

I am working on an existing building, trying to show compliance with
ASHRAE 62.1. The supply and return diffusers are in the ceiling and that
forces dividing by a 0.8 factor that increases the outside air
requirement by 25%. The building was designed in the late sixties to CA
T-24. It appears to have about 20% outside air. This seems pretty good,
at first look, but it doesn't seem to satisfy 62.1. Any and all advice
will be appreciated.

--
Robert P. Wichert, P.Eng.

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Robert:
?
I am unsure as to what you mean trying to get an existing building, especially an older one, to comply with 62.1. It probably WON'T.
?
Also, the first CA Title-24 was 1977. So it probably flew to the CA Mechanical Code at the time (Uniform Building Code).
?
John Aulbach

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Outside air volume in 62.1 is a function of area, occupant density, and system. If your area, system, and OA volume are all fixed parameters, it would seem all you can do is solve for occupant density.

Paul Riemer

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