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Installation errors with Windows Vista
Q. I receive an error telling me I need to be the administrator to install the software?
A. Download and save the software from our website to your computer. Right-click on that file and select run as administrator. File should install after these steps have been taken.
Activating LEAD+ Licensed
Q. How do I activate LEAD+?
A. When you downloaded GLD from our website two versions of LEAD+ came with it. To find the licensed version of LEAD+ simply navigate to c:\Program Files\Gaia Geothermal\GLD2009\LEAD and create a short cut to the file named LEADPlusSRM. Place that short cut on your desktop for convenient use. Double click the short cut you just created and the licensed edition of LEAD+ should open.
Grayed out variables
Q. Can I change variables that appear grayed out in GLD?
A. If values appear gray in your program it means that you either don't have these features available in your version or your program is running in demo mode. If you are running in demo mode and you haven't purchased the software, click here. If you have already purchased the software and you are running in demo mode, please check to ensure that your USB key is properly connected to your computer. You can verify that your key is connected by looking to see if your USB key is illuminated.
Grayed out results
Q. What do the grayed out numbers in the results mean?
A. The grayed out numbers in the results come from running the full dominant load against the less significant design. i.e if there is a design that has a cooling dominant load, then the cooling design will be bolded in the results. The numbers that appear grayed out will satisfy the heating demand but the long term ground effects and ewts will be run as if you applied the full cooling load to the smaller, heat demand satisfying, field parameters.
Iteration errors
Q. What does it mean when a error box appears that contains "calculations fail!!" "Iterations=100"?
A. This error generally appears when a design will never stabilize due to the design of the field. The first variable that should be evaluated is the pipe/borehole spacing. If borings are located in to close of proximity to each other this error will develop readily. This warning is set up to let designers know that the particular design is risky and may not work.
Vista issues
Q. How do I get GLD to work with Vista?
A. GLD will work properly with Windows Vista by adjusting some simple settings. Find the location where you installed GLD and look for the file labeled GLDesign.exe. Right click on that file and select properties off of the pop-up menu that will appear. In properties select the "run as administrator" option. Once that option is selected GLD should run properly in Windows Vista.
EWTs and total capacity appear as negative values
Q. Why am I getting negative values for results in fields other than the ground temperature change?
A. This error is extremely rare and has only been observed in the pond loop module. If you experience this error in the vertical or horizontal module please let us know. To correct this problem simply reselect your heat pump and recalculate the results. This should correct any issues related to these findings
.GT2, .GT3, .GT4 Files
Q. Can GLD use these files or only .GT1 files from Trane Trace?
A. GLD Only uses GT1 files. To make your .GTx files work simply change the number to 1 at the end of the file.
Modeling period for horizontal systems
Q. How long should set the modeling period for during a horizontal design?
A. On shallow horizontal installations, less than 25 bgs, it is common to see the modeling period set to one year. This is done because shallow systems have a tendency to refresh themselves on a yearly basis. With shallow systems the energy you are moving to or from the building won't store the same as vertical systems will. With the lack of storage, increasing the modeling period will only lead to larger install sizes. However, systems that are installed deeper in the soil may need to be evaluated over a certain amount of time
