[Equest-users] Question about VRF Condensing Unit Inputs

[Chris Hadlock]

Thank you to Ethan and everyone else who responded to my VRF questions.

To close the loop on this, Brian Fountain has pointed me towards Doug
Maddox’s video that provides in-depth overview of the VRF capabilities of
2.3 and answered all of my questions.

For all those who may benefit from this video as I did, here it is:

https://www.youtube.com/watch?v=DZlcEXa4tHQ


Thank you,

Chris

On Wed, Sep 8, 2021 at 11:55 AM Seaman, Ethan <eseaman at smma.com> wrote:

> Hi Chris,
>
> I don’t see why you can’t model each unit and connect them to the terminal
> units.  I’ve attached an example model file.  The user-entered values are
> going to take priority over default values.  You can right-click on the
> cell to read more about the input and it’s relationships with other inputs.
>
>
>
>
>
>
>
> [image: Table, calendar Description automatically generated]
>
>
>
> *_______________________________________________*
> * Ethan Seaman*
> Sustainable Design Analyst
>
> *SMMA*
> t: 617.520.9288
>
> www.smma.com
>
>
>
> *From:* Equest-users <equest-users-bounces at lists.onebuilding.org> *On
> Behalf Of *Chris Hadlock via Equest-users
> *Sent:* Wednesday, September 8, 2021 10:27 AM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] Question about VRF Condensing Unit Inputs
>
>
>
> Good afternoon,
>
>
>
> I'm looking to better understand the Condensing Unit inputs in eQuest 3.65
> (build 7175) using DOE 2.3.
>
>
>
> My project has two (2) 12 Ton condensing units (same capacity) serving
> approximately 40 zones.
>
>
>
> I'm trying to better understand the following inputs (and how they relate):
> "Num system (multiplier)", "Max cap/system", and "Cooling Capacity".
>
>
>
> Per the screen capture below, is the Max cap/system input the maximum
> cooling capacity of each condensing unit? So in my case this would be 12
> Tons?
>
>
>
> How (if at all) does this relate to the cooling capacity and heating
> capacity specified under Cooling Performance and Heating Performance
> (circled in the image below)...is that again the capacity per condensing
> unit? If so, is this a redundant input to the Max cap/system input
> specified above?
>
>
>
> Additionally, can someone provide an example of when the "Num systems
> (multiplier)" input would exceed 1?
>
>
>
>
>
>
>
>
>
> Thanks in advance for any help.
>
>
>
> ---
>
> *Chris Hadlock*
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20210909/200f31ed/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 58473 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20210909/200f31ed/attachment-0009.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 126943 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20210909/200f31ed/attachment-0010.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 140251 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20210909/200f31ed/attachment-0011.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.png
Type: image/png
Size: 118029 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20210909/200f31ed/attachment-0003.png>