[Equest-users] Cooling Increase DCV and ERV Measures

[Netty Nina]

Hi eQuesters,

The next two questions have been asked on here multiple times, but I have scourged the list and haven't found a resolution. My building is a school in New England.

I have a DCV measure that shows an increase in cooling. My thought is that DCV is taking precedence over the economizer. Is there a way to force eQuest to have economizer priority or is there another issue going on?

The other issue is in the Heat Recovery. It also shows an increased cooling load for the building. I tried setting it on an ERV Schedule and limiting it to the heating season. I tried playing with the different controls. I know it's not due to the increase in fan energy needed since the majority of units already have ERVs, but the efficiencies are better than code (and I also tried messing with the fan energy). Someone on the bldg-sim list even suggested controlling the ERV with Exhaust DT and increasing the delta-T to 20F.

I couldn't get any suggestions to work.  How can I avoid overheating? Or is there another issue?

Thanks in advance for any help you can give me.

Sincerely,

Netty


Netty Nina<mailto:nnina at ers-inc.com>, LEED(r) AP BD+C
Project Engineer
ERS
120 Water Street, Suite 350
North Andover, MA 01845

Ph: 978-521-2550 ext. 224
Fax: 978-521-4588
nnina at ers-inc.com<mailto:nnina at ers-inc.com>
www.ers-inc.com<http://www.ers-inc.com/>

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