Chiller connection to condenser loop for ASHRAE 90.1 System 8 in OpenStudio

Dear all,

I am wondering how I can add an additional chiller to the chilled water loop that connects to a condenser loop.

According to Table G3.1.3.7 in ASHRAE 90.1-2007 I need to have "2 water-cooled screw chillers sized equally". I read from another post that one way of adding a chiller which has a condenser loop is to use "VAV with Reheat" in OpenStudio and then modify the components. However, if I need 2 chillers how can I model it in OpenStudio?

When I try to drag a "Chiller Electric EIR" component to the system it doesn't come with a condenser loop. Is there a way to add one to it?

Thanks in Advance, Daniel

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Daniel Mak

asked 2015-05-11 03:27:41 -0500

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__AmirRoth__

updated 2015-07-12 14:34:39 -0500

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You can also just add a chiller from the "Library" tab on the right by dragging and dropping it.

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TaylorRoberts

answered 2015-05-12 13:54:17 -0500

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Hi Taylor, but the new chiller won't have a condenser loop connected to it right? Or is there a way to connect this chiller to a condenser loop if you drag it from the library?

Daniel Mak (2015-05-12 23:02:16 -0500) edit

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Ok I have figured it out. So I created two "VAV with Reheat" loops and then dragged the chiller from "My Model" to form a single loop with two chillers that have condenser loops.

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Daniel Mak

answered 2015-05-11 04:00:44 -0500

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Hello @Daniel Mak, I got the same problem altering the DOE reference building HVAC system. I can't connect the second chiller with the condenser loop. I don't get what is VAV with Reheat has to do with this problem? It doesn't contain any chiller.