[Equest-users] Air-Side Economizer

[Daniel Kaler]

Hello All,

I'll give a little background to the dilemma that I came across yesterday. I was looking through my SS-A reports, and noticed a large cooling energy consumption in the winter months (this space has a high internal load). I would have expected most of the load to be handled by free cooling, and the additional load to be handled my system. I did not have a MIN OA schedule defined. However, I did have an economizer schedule defined. I thought that since I told the program my economizer could be operating year round, it would automatically activate when required (within the high limit/low limit shut-off). I then inserted a minimum OA schedule of 0.001 year round, per the help menu to activate the economizer, and the results were looking significantly more promising.

This space is not occupied, so I did not have an OA schedule in there previously. Can anyone tell me if this is the correct way to activate the economizer?

Thanks, happy holidays.

Daniel Kaler
Energy Engineer, EIT


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