[Equest-users] auxilliary heat and desiccant wheel

Alan Crittendon alanc at dwcei.com
Fri Nov 5 14:01:56 PDT 2010


Thanks that is very helpful.  However, I think I have something
fundamentally wrong with the HVAC.  I have two airside system types.  One is
the packaged hvac heat pump and one is the unit I am going to use as the
fresh air erv.  I have them both assigned to the same shell component under
the first screen shown below.

 



 

When I try to do what you say below and modify the systems under detail
mode, I see this.

 



 

  Where am I supposed to modify the heat recovery?  Under each zone?

 

Alan Crittendon, PE, LEED AP
DW Collier Engineering, Inc.

(p) 731-479-2115



  _____  

From: Nick Caton [mailto:ncaton at smithboucher.com] 
Sent: Friday, November 05, 2010 2:05 PM
To: alanc at dwcei.com; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] auxilliary heat and desiccant wheel

 

Hi Alan!

 

1.       "auxilliary strip heat:" Not totally sure what specifically you're
talking about (vocabulary disconnect probably), but I think you'll find what
you're looking for under the "supplemental heat/defrost tab" in detailed
mode.

2.       Look in the same place first. alternatively you may be able to
specify dual fuel as a pre-heat option

3.       Easiest approach, for projects large and small, generally is to:

a.       Go to the airside system(s) served by the OA unit, 

b.      Enable/define energy recovery inputs (including wheel properties),
and 

c.       Proportion out the delivered flow rates and fan/process energies of
your OA unit between the served systems

 

~Nick

 

cid:489575314 at 22072009-0ABB

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Alan
Crittendon
Sent: Friday, November 05, 2010 9:46 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] auxilliary heat and desiccant wheel

 

 

How do I factory in the auxilliary strip heat or use a dual fuel heat option
for packaged heat pumps?  Also how do I put in a desiccant wheel for an
outside air unit?

 

Alan Crittendon, PE, LEED AP
DW Collier Engineering, Inc.

720 Broadway St.

Suite 100

South Fulton, TN 38257
(p) 731-479-2115
(f) 731-479-8018 

 

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