[Equest-users] Unable to assign a VAV "terminal type"

[Kevin Kyte]

I have been contemplating this for a bit now as I am setting up a standard VAV system for LEED model.  My question that I am not fully understanding where to input the VAV fan energy and as mentioned, all boxes under TERMINAL-TYPE are not available unless you force a default.  Even then, ZONE-FAN-KW/FLOW is only for PIU system type.  I do not think it would make since to enter the zone VAV box fan energy at the system SUPPLY-KW/FLOW.  Am I suppose to allow equest to make up its own fan power values for the VAV box?  The central air handler is not a DOAS so I do not think OA-FROM-SYSTEM is a good option nor is creating a system for each VAV box while including the central air handler in the Heat Recovery tabs.

If there is no reasonable way to input zonal fan energy for VAV boxes then it should not matter whether each VAV zone is accounted for which means I wasted a couple days rezoning the model for each VAV zone.  Is this true?

Would someone please provide a refresher of the VAV fan energy inputs for this model type?  Thank you.

Kevin Kyte, PE, BEMP, LEED (r) AP
Mechanical Engineer
Watts Architecture & Engineering, P.C.
95 Perry Street, Suite 300
Buffalo, NY  14203
p:  716 206 5174
f.:  716 206 5199
e:   kkyte at watts-ae.com<mailto:kkyte at watts-ae.com>
http://www.watts-ae.com<http://www.watts-ae.com/>

From: Paul Diglio [mailto:paul.diglio at sbcglobal.net]
Sent: Tuesday, July 05, 2011 6:58 AM
To: Rob S. Young; Carol Gardner
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Unable to assign a VAV "terminal type"

Rob:

Right-click on the gray area in VAV Terminal Type.  Chose Edit/View User Default, click User Defined Default Value and use the drop down arrow to choose your VAV type.

To verify that the VAV terminal device is operating correctly, create a new Thermal Zone Type Hourly Report Block for the VAV zone.  It will verify that the VAV box is varying the airflow.

Paul Diglio


________________________________
From: Rob S. Young <youngrs at kjww.com>
To: Carol Gardner <cmg750 at gmail.com>
Cc: "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Sent: Mon, July 4, 2011 2:24:03 PM
Subject: Re: [Equest-users] Unable to assign a VAV "terminal type"
System Type is VAVS.

Thanks,

Rob

[cid:image001.jpg at 01CC6C7F.576190C0]
Rob Young, PE
Mechanical Engineer | youngrs at kjww.com<mailto:address at kjww.com>
2882 106th St | Des Moines, IA 50322
515.334.9906 | Direct: 515.334.4311 | Fax: 515.334.9908
www.kjww.com<http://www.kjww.com/>

From: Carol Gardner [mailto:cmg750 at gmail.com]
Sent: Monday, July 04, 2011 11:40 AM
To: Rob S. Young
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Unable to assign a VAV "terminal type"

What are you calling your system type? It will have to be VAVS, PVAVS or PVVT to be able to include VAV boxes.

Carol
On Mon, Jul 4, 2011 at 9:12 AM, Rob S. Young <youngrs at kjww.com<mailto:youngrs at kjww.com>> wrote:
I am working on a model for a project where multi-zone air handling systems are being converted to single-duct VAV systems.  I have already completed the system changes so that all of the air handling units are single-duct VAV.  However, I am unable to change the zones to include VAV boxes.  Under each zone in the "Air Flow" tab, the "Zone Terminal and Fans" section is all grayed out and will not allow any changes.  I tried deleting the zone and re-creating it, but I still have the same issue.  Any advice is much appreciated!

Rob

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--
Carol Gardner PE

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