UNDERGROUND HEAT EXCHANGE-TYPE HEATING AND COOLING SYSTEM

摘要

An underground heat exchange-type heating and cooling system, according to an embodiment of the present invention, comprises: an underground heat exchanger buried under the ground so as to allow heat to be exchanged between geothermal heat and a first heat medium flowing therein; a plurality of heating and cooling units for heating or cooling an indoor space by means of a second heat medium flowing therein; a plurality of heat pump units allowing heat to be exchanged between the first heat medium and the second heat medium so as to cause the second heat medium to have a set temperature for heating or cooling; a first transfer line for transferring, to the plurality of heat pump units, the first heat medium having undergone heat exchange in the underground heat exchanger, and transferring, to the underground heat exchanger, the first heat medium having undergone heat exchange in the plurality of heat pump units; and a second transfer line for transferring, to the plurality of heating and cooling units, the second heat medium having undergone heat exchange in the plurality of heat pump units, and transferring, to the plurality of heat pump units, the second heat medium having been discharged from the plurality of heating and cooling units.