[Equest-users] seeing heating in a cooling climate - why?

[Busman, Michael R]

Christian,

What is the location?
Is this an existing building?
Do you see heating consumption during the summer months?
Is the return air system for the top floor a plenum vs. ducted return?
Are your HVAC systems capable of simultaneous heating & cooling - reheat, multizone, VAV with high min CFM settings on the VAV boxes?

Those are just a few initial questions to think about.  It is always helpful to attach your .pd2 and .inp files so that other folks on the users list can review the files versus guessing at what's happening.

My best,

Mike Busman

Michael R. Busman, CEM
Lead Project Engineer II

Chevron Energy Solutions
A Division of Chevron U.S.A., Inc.
145 S. State College Blvd.
Brea, CA  92821
Direct  714-671-3561
Fax     714-671-3438
eFax   866-420-0335 (Include my Full Name followed by "CAI:MHTZ" on Cover Sheet)
Mobile 310-387-2083
mbusman at chevron.com<mailto:mbusman at chevron.com>



From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Christian Stalberg
Sent: Thursday, October 24, 2013 10:08 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] seeing heating in a cooling climate - why?


I have a multi-story office building in a  cooling dominated climate. I am seeing a great deal of heating in the actual building's roofed spaces compared to the baseline. The roof is concrete with an ASHRAE appendix A u-value of 1.28 compared to the baseline prescriptive value of 0.048. Could this alone explain the heating I am seeing (over 1,000% compared to the baseline)?
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