I am having an issue with equest crashing. The error is associated with
the subtype being secondary for the chilled water loop, however, when I
switch it back to primary, I immediately get kicked out of equest. I
have attached the screenshot of equest and the chilled water loop
appears to be nested. I am not sure how this exactly happened, I was
attempting to redefine the chilled water loop. Here is the excerpt from
the bdl file. Is there any way to edit outside of equest interface so I
can alleviate the crashing??
*3099 * "Chilled Water Loop" = CIRCULATION-LOOP
*3100 * TYPE = CHW
*3101 * SUBTYPE = SECONDARY
*3102 * LOOP-DESIGN-DT = 15
*3103 * SIZING-OPTION = PRIMARY
*3104 * PIPE-HEAD = 55
*3105 * PRIMARY-LOOP = "Chilled Water Loop"
*3106 * LOOP-OPERATION = DEMAND
*3107 * DESIGN-COOL-T = 45
*3108 * COOL-SETPT-CTRL = FIXED
*3109 * LOOP-PUMP = "CHW Loop Pump"
*3110 * HEAD-SETPT-CTRL = FIXED
*3111 * HEAD-SETPT = 30
*3112 * ..
*ERROR******************************************************************
**********************
*ERROR*****Chilled Water Loop cannot be specified as a PRIMARY-LOOP due
to
incorrect SUBTYPE; valid PRIMARY-LOOP must have a SUBTYPE of
PRIMARY
Thanks!
Robert G. Chronic
Hi Robert,
The first thing you can try is to edit the INP file and manually change the SUBTYPE back to PRIMARY. You will most likely see a couple of ?INP? files in your project folder. It will be the one that exactly matches the name of your project. The INP file that has a ?- Baseline? after the name is not the one you want to edit.
A good tool for reviewing and editing the INP file is Notetab Light. The free version of Note Tab. One benefit of this editor is that it will not put access restrictions on the INP file. You can make changes (and save) in eQuest while the file is open in Notetab and it will notify you to update the file. Just be careful though. You must re-open the equest project (without saving first) after any changes are made directly in Notetab or your changes will get over-written. In a pinch, you can use Notepad but just be careful on how you save it (I?m not sure of the exact way). You should be able to clear up your circulation loop issues this way and eQuest should reload fine.
John
John T. Forester, P.E., LEED AP
You only seem to have a chilled water meter attached to this loop - no
primary equipment (chiller) so there is nothing to size to.
Shaun Martin LEED AP
Thanks, John. It worked great. I also like notetab light.
Since this is a campus connection, I only wanted the load of the chilled
water and not necessarily size a chiller plant. I thought the easiest
way was to "replace" the plant with a meter and have the meter tally up
the loads. I certainly would welcome any feedback if there are better /
easier ways to model a campus chilled water connection.
Thanks!