Installed a Navigator Geothermal Unit - M#GYT048 Install geothermal system. Removed old furnace including venting and gas line. Removed condenser and line set. Installed new geothermal unit and connected to existing duct-work. Installed de-super-heater and piped to the unit and the existing water heater. Dug a trench in the yard for the loop field and laid 5,300 foot loops and back filled the trench. Connected loop field to the geothermal unit. Filled and purged the geothermal unit and loop field. Ran and tested operation of the unit. All systems operating properly.