The error message is saying that at z=20,941 m elevation, the outdoor air temperature is very cold. This tends to be true but I doubt you have a building that tall. There is a model to adjust the outdoor air temperature with elevation that is based on the z-value above z=0.
I am guessing you have input millimeters rather than meters.
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Sunday, November 16, 2014 7:36 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] E+ error - maximum Z height
I have been encountering this error with one of my models -
** Severe ** SetOutBulbTempAt: Surface Outdoor Temperatures < -100 C
** ~~~ ** ...check Surface Heights - Maximum Surface Height=[20941].
It is a fairly large model with around 2,200 surfaces and I tried looking at the Z coordinate values for the surfaces by sampling and do not see anything off as yet.
Has anyone else encountered this error previously? Please let me know about it.
Thanks
__._,_.___
Posted by: "Brent Griffith" <Brent.Griffith@xxxxxxxxxxxxxxxxxx>
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
__,_._,___