[Equest-users] DX Cooling Option

[Nick Caton]

Hi Eric,

First thought is if you chose "no cooling" in the wizards, the wizards may have assigned a system type (there are many) which cannot be assigned any cooling function no matter what you do.  You may need to review and re-assign the system type as a result.

If this could be the case and you're still gaining familiarity, it can be instructive to save a 'dummy' copy of your project, then go back to wizards, re-create the system you're thinking of (with cooling), and observe what the wizards generate as a result for edits in your 'actual' project.

If the system is correctly defined, an easy miss might be defining cooling thermostat inputs (scheduling) for the zones to be conditioned.

Best of luck!

~Nick
[cid:489575314 at 22072009-0ABB]

NICK CATON, P.E.
SENIOR ENGINEER

Smith & Boucher Engineers
25501 west valley parkway, suite 200
olathe, ks 66061
direct 913.344.0036
fax 913.345.0617
www.smithboucher.com

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Eric Hethcoat
Sent: Thursday, June 14, 2012 4:17 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] DX Cooling Option

I've got a baseline and proposed model for a project set up.  I've been thru every wizard mode input, then changed several items in the detailed input mode.  Successful runs for both.

The one thing that is not showing up on only a single zone for one system between both models is cooling.  In the wizard mode - it is entered as "no cooling".  I understand this limits what systems can be chosen - in wizard mode.

In the detailed mode I've been thru every cooling tab to ensure all cooling properties are correctly indicated as if we had DX - however under the air-side system tab, the selection of chilled water or DX is not available - and is greyed out to N/A.  I've played with zone temps, schedules, etc. and none have any change in the result for cooling in this area.

How can I ensure that I have the proper cooling?  I only have standard gas fired heating/DX cooling PSZ equipment.  No heat pump.

Eric Hethcoat, P.E.
Partner
Latimer, Sommers & Associates, P.A.
3639 SW Summerfield Dr., Suite A
Topeka, KS  66614
c.  913.481.3256
w.  785.233.3232
f.  785.233.0647
ehethcoat at lsapa.com<mailto:ehethcoat at lsapa.com>

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