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Marshall,<br>
<blockquote
cite="mid:OF40DDAA86.B2821C4E-ON852575FC.00685F1E-852575FC.00685F25@vcu.edu"
type="cite"><font
face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2">I
am trying to create a pitched roof for a building (a wall that has a
slope). I have created two new orientations, NSLOPE and SSLOPE, in
TRNBUILD. Then I created two new surfaces in the input for weather
data (type 109). This created 6 new output variables for each of the
new surfaces. How do I go about connecting these outputs from the
weather reader to the input of type 56? Can I create a connection
between the weather reader and the type 56 and connect the variables?<br>
</font></blockquote>
once the new surfaces are defined in Type109, right click on your
Type56 in the Studio and tell it to "update building variable list."
You should have three new inputs for each orientation that you defined
in TRNBuild. Then either open an existing connection between Type109
and Type56 or make a new one and connect the appropriate output and
input variables as you would between any two TRNSYS types.<br>
<blockquote
cite="mid:OF40DDAA86.B2821C4E-ON852575FC.00685F1E-852575FC.00685F25@vcu.edu"
type="cite"><font
face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2">Also
what are the input variables labeled "CNAT_1" for type 56?<br>
</font></blockquote>
that is not a standard input to Type56 so it pertains to something that
you defined in TRNBuild (or something that was already defined in the
*.bui from which you began). Look through the various managers in
TRNBuild to determine where that input is being used. <br>
<blockquote
cite="mid:OF40DDAA86.B2821C4E-ON852575FC.00685F1E-852575FC.00685F25@vcu.edu"
type="cite"><font
face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2">I
am also modeling my building with a crawlspace underneath the first
floor. What is the best way to model the natural earth (dirt) floor of
the crawl space? Should I create a layer that is similar to rock or
dirt and declare it as a boundary wall? I've tried using the
gravel_sand layer from the library and the dirt floor but when I
declare it as a boundary I always get an error.<br>
</font></blockquote>
The most correct method would be to define a layer of earth (perhaps
10cm of it) as a BOUNDARY wall for the bottom and define whatever the
walls are (concrete perhaps) also as BOUNDARY walls, then connect those
to one of the basement ground coupling models in the TESS Ground
Coupling Library (if you have access to it.) Without that library, you
can use the ASHRAE f-Factor approach to estimating the effective
resistance of the earth but that method is not all that accurate as has
been shown in some recent work by the IEA.<br>
<br>
Kind regards,<br>
David<br>
<pre class="moz-signature" cols="72">--
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