[Equest-users] Daikin heat pump curves

[PKConsulting]

Thank you Byron and Bill for sharing all of this.
I'm excited to try it on a couple of my projects!

...sooo thankful to have this forum and all the great colleague connections!

Pasha
Ph: 308-763-1593

> On Mar 14, 2014, at 12:27 PM, Byron Burns <B.Burns at ha-inc.com> wrote:
> 
> Good call Bill, that does allow the data to import correctly.  I will pass it along to Daikin so they can correct their curve file.  In the mean time everyone will need to edit it manually.
>  
> This is the edited performance data that imported correctly.
>  
> "VRV Heating EIR-F-EWB/ODB AC" = CURVE-FIT
>   TYPE=BI-QUADRATIC-T COEF=(-1.850255, 6.20141e-002, -3.12822e-004, 7.14585e-002,
>   -3.626328e-004,-7.776424e-004 )
> 
> Byron D. Burns, EIT, BEMP 
> Energy Analyst/ Modeler 
> 
> H&A Architects & Engineers | www.ha-inc.com 
> d: (804) 420-1622 p: (804) 285-4171 f: (804) 217-8520 
> 
> From: Bishop, Bill [mailto:bbishop at pathfinder-ea.com] 
> Sent: Friday, March 14, 2014 2:09 PM
> To: Byron Burns
> Cc: eQUEST Users List
> Subject: RE: [Equest-users] Daikin heat pump curves
>  
> Daikin has two different downloads for eQUEST - one for VRV and one for WSHP. They are on different websites so you might not know about both unless you went looking for them.
>  
> Byron,
> Regarding the VRV curve, I suspect there are too many characters in line 40 and the “e-002” is getting truncated to “e-00”. Try putting the last three coefficients on line 41 (in the input file), instead of just the last two.
>  
> Regards,
> Bill
>  
> William Bishop, PE, BEMP, BEAP, LEED AP | Pathfinder Engineers & Architects LLP
> Senior Energy Engineer
> <image001.jpg>
>  
> 134 South Fitzhugh Street                 Rochester, NY 14608
> T: (585) 698-1956                        F: (585) 325-6005
> bbishop at pathfinder-ea.com             www.pathfinder-ea.com
> <image002.png>Sustainability – the forest AND the trees.
>  
>  
> From: Byron Burns [mailto:B.Burns at ha-inc.com] 
> Sent: Friday, March 14, 2014 1:55 PM
> To: Bishop, Bill
> Cc: eQUEST Users List
> Subject: RE: [Equest-users] Daikin heat pump curves
>  
> Hello Bill,
>  
> Notice in the screen shots below, curve coefficient d is supposed to be 0.07145853, however it was imported as 7.145853.  Not sure what caused it but just know it took me a while and a lot of cussing to track it down.  The other curves seem to import coefficient d just fine, but for some reason this one would not do it right.
>  
> Has anyone else noticed this issue?
>  
> The data file from Daikin
> <image004.jpg>
>  
>  
> How eQUEST reads it in.
> <image005.jpg>
>  
> 
> Byron D. Burns, EIT, BEMP 
> Energy Analyst/ Modeler 
> 
> H&A Architects & Engineers | www.ha-inc.com 
> d: (804) 420-1622 p: (804) 285-4171 f: (804) 217-8520
> 
> From: Bishop, Bill [mailto:bbishop at pathfinder-ea.com] 
> Sent: Friday, March 14, 2014 1:36 PM
> To: Byron Burns
> Subject: RE: [Equest-users] Daikin heat pump curves
>  
> Hi Byron,
> Do you know which curve it was?
> Thanks,
> Bill
>  
> William Bishop, PE, BEMP, BEAP, LEED AP | Pathfinder Engineers & Architects LLP
> Senior Energy Engineer
> <image006.jpg>
>  
> 134 South Fitzhugh Street                 Rochester, NY 14608
> T: (585) 698-1956                        F: (585) 325-6005
> bbishop at pathfinder-ea.com             www.pathfinder-ea.com
> <image002.png>Sustainability – the forest AND the trees.
>  
>  
> From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Byron Burns
> Sent: Friday, March 14, 2014 1:33 PM
> To: Kari; ssavich at systemswestengineers.com
> Cc: eQUEST Users List
> Subject: Re: [Equest-users] Daikin heat pump curves
>  
> I just did the same thing for a project, however there was an error created by eQUEST during the importing process and one of the curve coefficients was off by an order of magnitude.  I would recommend verifying the .inp after importing.  Definitely makes it nice and saves some time though.
>  
> 
> Byron D. Burns, EIT, BEMP 
> Energy Analyst/ Modeler 
> 
> H&A Architects & Engineers | www.ha-inc.com 
> d: (804) 420-1622 p: (804) 285-4171 f: (804) 217-8520
> 
> From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Kari
> Sent: Friday, March 14, 2014 1:17 PM
> To: ssavich at systemswestengineers.com
> Cc: eQUEST Users List
> Subject: Re: [Equest-users] Daikin heat pump curves
>  
> Daikin/McQuay sample .inp folders worked great for a geothermal model we were building for a job in Colorado.  It was as simple as saving the sample .inp to the project file and choosing "Import File" to load the system information.
>  
> Kari Mueller, PE, LEED AP
> 
> 
> On Mar 14, 2014, at 10:03 AM, "Steven Savich" <ssavich at systemswestengineers.com> wrote:
> 
> eQuesters:
>  
> My local Daikin rep informed me that Daikin has begun creating .inp files with curves for Daikin/McQuay heat pump products.  The following link takes you to a download site (registration req’d) to download the .inp file, a modeling guide, and a sample file.
>  
> http://www.daikinapplied.com/equest.php
>  
> I don’t have a heat pump simulation project right now, so don’t have time to look at the .inp in detail, but a surface skim through the modeling guide looks like Daikin put some thought and effort in.  Nice to see support for modeling from manufacturers.
>  
> Happy Pi day!
>  
> Steven Savich, LEED AP
> Mechanical Designer, Energy Analyst
>  
> <image001.jpg>Systems West Engineers
> 411 High Street
> Eugene, OR  97401-2427
> p. 541.342.7210
> f.  541.342.7220
> systemswestengineers.com
>  
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20140315/186e0f42/attachment-0001.htm>