DX ground loop heat pump

[tobe5052]

Anybody have any experience or comments on the Earthlink system for heat, a/c, and hot water? Any known problems with the proprietary Active Charge Control device?
Any info appreciated!
Any other similar systems in use?

[Peter_1]

If you do a search on this forum, you will find a lot of information (DX coil, GSHP, ...)

[dougheret0]

Find a copy of Design/Data Manual for Closed Loop Ground-Coupled Heat Pump Systems, published by ASHRAE. Written by J.E. Bose, J.D. Parker, and F.C. McQuiston, Oklahoma State University, 1985.