Sprsun Heat-Cool Geothermal DC Heat PumpGeothermalsourceheatpumpisakindofhighenergysavingwaterheaterandgreenproducts.Followingisairsourceheatpumpworkingprinciple.Inthesystem,thereisarefrigerantcycle,wecallitreverseCarnotcycle,itconsistsoffourcomponent,1.Compressor,2.Condenser(plateheatexchanger)3.Expansionvalve,4.Evaporator(double-pipeheatexchanger)Themaintypesofgeothermalpumpsare:1.closed-loop geothermal pumps*horizontal ground loop*vertical ground loop*surface water loop2.open-loop geothermal pumpsAdvantage: