How Geothermal Systems Work
Geothermal Heat Pumps use nearly constant temperature underground to heat or cool a buildings interior
1. Ground Loop systems circulate an antifreeze fluid transferring heat in the winter (and releasing heat in the summer).
Alternatively: Open Loop systems from a well source transfer heat from water in the winter
(and release heat in the summer) and recycle water to absorb back to the earth.
2. The evaporator transfers heat from (or to) the ground loops to refrigerant (freon) fluid circulating in the home's geothermal system.
3. The compressor increases the pressure on the fluid raising its temperature.
4. The DESUPERHEATER takes some of the excess heat and routes it to the hot water heater.
5. A reversing valve lets the heat pump switch directions to either heat or cool the building.
6. The expansion valve lowers the fluid's pressure and temperature so it flow toward the evaporator, and the cycle starts again.
Alternatively: Open Loop systems from a well source transfer heat from water in the winter
(and release heat in the summer) and recycle water to absorb back to the earth.
2. The evaporator transfers heat from (or to) the ground loops to refrigerant (freon) fluid circulating in the home's geothermal system.
3. The compressor increases the pressure on the fluid raising its temperature.
4. The DESUPERHEATER takes some of the excess heat and routes it to the hot water heater.
5. A reversing valve lets the heat pump switch directions to either heat or cool the building.
6. The expansion valve lowers the fluid's pressure and temperature so it flow toward the evaporator, and the cycle starts again.