[Equest-users] Thermal Link????

[Grando, John]

Nick,

A "link" basically is a copy of the the zone you choose.  simply put.  any default value in the zone that has the link will be the exact value of the zone it was chosen to link to.  If you look at it in the .inp file it makes a lot of sense.  The example below shows that the second zone has all the properties of the first zone, and any attributes that are different are listed below the "LIKE" command.  When you define a link, the keyword "LIKE" is made in the .inp file.

This is extremely useful for zones that are identical when it comes to set points that you will want to change often.


"E1 WNW Perim Zn (B.WNW2)" = ZONE
   TYPE             = CONDITIONED
   MIN-FLOW-RATIO   = 0.3
   FLOW/AREA        = 0.4
   OA-FLOW/PER      = 20
   DESIGN-HEAT-T    = 72
   HEAT-TEMP-SCH    = "S1 Sys1 (VAVS) Heat Sch"
   DESIGN-COOL-T    = 75
   COOL-TEMP-SCH    = "S1 Sys1 (VAVS) Cool Sch"
   SIZING-OPTION    = ADJUST-LOADS
   TERMINAL-TYPE    = SVAV
   SPACE            = "E1 WNW Perim Spc (B.WNW2)"
   ..
"E1 SE Perim Zn (B.SE3)" = ZONE
   LIKE                 = "E1 WNW Perim Zn (B.WNW2)"     $This is what happens when I tell the program to link "E1 SE Perim Zn (B.SE3)" to "E1 WNW Perim Zn (B.WNW2)"
   SPACE            = "E1 SE Perim Spc (B.SE3)"
   ..



John Grando LEED AP





________________________________
From: Nick Caton [mailto:ncaton at smithboucher.com]
Sent: Tuesday, November 17, 2009 9:51 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Thermal Link????

Attached is a screengrab...

When you right-click a zone in detailed edit mode under 'Air-Side HVAC,'  you get the option to define a "thermal link" to another zone.

What exactly does this do in terms of modeling behavior?

Does it create an "air wall" (or some other construction) between the two zones?

~Nick

[cid:779142615 at 17112009-1F0F]

NICK CATON, E.I.T.
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