[Equest-users] Economizer is using more energy in a VAV system than a non economizer system.

Chris Miller chris.miller at p2seng.com
Tue Dec 22 18:47:32 PST 2009

I set the minimum OSA in all zones to zero, with no economizer my annual
energy is 836,000 kWh annually.
With the economizer selected the kWh went up to 844,000 kWh annually.
Climate is CZ06 and the area is a Basement.  in the detailed reports the
difference in temperature between outside and inside is -10+ and there is no
OSA flow at all.
no matter what i do I cannot get any benfit from economizer

Chris Miller, PE, CxA

Project Manager / Mechanical Engineer


P2S Engineering, Inc.

5000 East Spring Street, 8th Floor

Long Beach, CA 90815-5218

T 562.497.2999  F 562.497.2990


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