Hi Mahesh,

There are two ways to model GSHP with in equest. the first method is to
use the "eQUEST DD wizard" and the second is through the detailed
wizard. the following screen shots will hopefully help you in getting
the work done, although you may be able to to exactly able to model the
HVAC system in question , you can get a pretty good start off using the
"eQUEST DD wizard" and then moving on to "detailed wizard" to further
customize you HVAC system.

the screen shots are in the order of equest user interface.

Hope this helps.

Regards,