[Equest-users] Underheating warning for bunch of zones

[Nikola Kravik]

Rob/all,

I don't have baseboards, it's basic VAV/w reheat system-I was trying to use the baseboards just to see if the zone heating kicks in.
I've attached the zip file, it's giving me the same warning that the zones are under heated and also 1 error that the "hot water loop has zero design flow".

I'm stuck and not sure how to go about it. Please point/help me understand how to go about the error fix....
I appreciate your feedback.

Best,
Nikola
From: Rob Hudson [mailto:rdh4176 at gmail.com]
Sent: Tuesday, November 29, 2011 12:03 PM
To: Nikola Kravik
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Underheating warning for bunch of zones

I would first check your system level inputs.  Have you used a VAV system? if so, you need to know that these systems don't like to use the heating coil in the air handler and therefore you need to specify a reheat coil size and a preheat coil.  Also, if you have baseboards in the model, they don't like to operate very well when set to activate to outdoor conditions.  I always set the baseboard control to thermostat.

Hopefully these few tips help out.

Rob
On Tue, Nov 29, 2011 at 2:52 PM, Nikola Kravik <NKravik at willdan.com<mailto:NKravik at willdan.com>> wrote:
hi,

I'm simulating CHW Plant with CAV AHU's and bunch of packaged/split system units around supporting areas of the hospital/clinic.

I get the warning messages similar to below for almost all my zones  and my gas heating hot water is extremely low, no matter what I try do on the heating side. I added baseboards but it didn't make a difference-still have bunch of zones underheated looking at the ss-o's.
Do you any other hints you can share where else to look for the HHW low consumption?

Best,
Nikola
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--
Rob Hudson
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