Geothermal source heat pump 1. Heating and cooling house 2. Alfa laval plate heat exchanger, sus316l stainless steel 5. Copeland scroll compressor 6. Refrigerant: r410a/r407c 7. Heating capacity: 10.5~99.4 kw 8. Heat pump on/off linkage function by fan coil system 7. Emerson thermal expansion valve Plywood wood box