GROUND SOURCE HEAT PUMP TYPE HEATING AND COOING SYSTEM HAVIANG MEANS FOR FEEDING ASSISTANT HEAT SOURCE

摘要

The present invention utilizes ground source heat pumps (GSHPs), but geothermal heat exchanger type heat pumps heat and heat to provide reliable and stable indoor cooling and heating by selectively operating auxiliary heat supply means when geothermal heat is insufficient for outdoor heat exchange. The present invention relates to a heat pump unit (10) and an underground heat exchanger (32) having a water heat exchanger (16) on a refrigerant passage (11) for condensing or evaporating a refrigerant in accordance with air conditioning. And a heat exchange water circulation circuit 30 connected to the outdoor heat exchanger 16 so that the heat exchange water circulates the underground heat exchanger 32 and the outdoor heat exchanger 16, and the three-way valves 41a, 41b, and 42a. And auxiliary heat source supply means (40) having first and second branch passages (41, 42) passing through a cooling tower and a boiler while being connected to said heat exchange water circulation circuit (30) by means of (42b). It characterized in that it comprises a control unit 50 for controlling the three-way valve (41a, 41b and 42a, 42b).