[TRNSYS-users] Range check error

[Matt Duffy]

Dear Philipp Lezajic,

Your exterior walls seem fairly think. Perhaps your timebase is too small
to effectively calculate the wall conduction transfer function
coefficients. ASHRAE recommends a timebase of 2-4 hours for heavy
constuction ( ref. 6.2.10.9 and 6.4.1.14 of the Volume 6 Multizone
building manual). To change the timebase in TRNBUILD, click "Outputs" in
the project window, and the timebase is defined in the top part of the
Outputs window.  Please do not confuse timebase in TRNBUILD with timestep
in the TRNSYS Simulation Studio.

Best regards,

Matt Duffy



----- Original Message -----
From: philipp.lezajic at yahoo.de
Sent: Thu, October 16, 2008 5:51
Subject:[TRNSYS-users] Range check error


Hi,

I try to simulate the heat demand of a building with a quite simple model.
Type
109-TRY, Type 56a and one online Plotter Type 65d (I attached the project,
type 56
and weather files). My building is quite complex, 69 zones and walls
sizing from 2cm
(internal) and 10cm (adjacant) to 53cm (exterior). Some exterior walls I
had to
divide by an extra zone because I got the message:

"Error creating the wall transfer function coefficients:
Stability criteria not fullfilled
Check layer defintion (thickness,.......................)
...................................."

I get the massage "Range check error" when trying to run the simulation.

In addition when trying to run a max. heat load calculation in the build
manager I
get the message

"2 errors were found in the deck
check the listing file for more information"

so I think the problem lies anywhere within my building. The listing file
is among
the files I attached.

regards Philipp



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----- End of original message -----