MODULE MULTI TYPE AIR CONDITIONING AND HEATING SYSTEM USING GEOTHERMAL HEAT PUMP

摘要

PURPOSE: A multi-module cooling and heating system using geothermal heat exchanger pumps is provided to implement various operating modes by connecting the geothermal heat exchanger pumps in parallel. CONSTITUTION: A multi-module cooling and heating system(100) comprise a plurality of heat pumps(110), a first circulation line(120), and a second circulation line(130). Each heat pump comprises a first heat exchanger(111), a second heat exchanger(112), a compressor(113), a four-way valve(116), and an expansion valve(114), through which refrigerant circulates successively. The first circulation line connects the first heat exchangers of the heat pumps in parallel and allows a first heat transfer medium to circulate through an air-conditioning device installed in a first indoor space(121) and the first heat exchangers. The second circulation line connects the second heat exchangers of the heat pumps in parallel and allows a second heat transfer medium to circulate through a geothermal heat exchanger(131) buried underground and the second heat exchangers. The air-conditioning device cools or heats the first indoor space according to the circulation direction of the refrigerant. A heat exchanger for hot water supply is arranged in parallel with the air-conditioning device in the first circulation line. First branch pipes are branched to the second circulation line and connected to the heat exchanger for hot water supply or a second indoor space. The second heat transfer medium circulates through the first branch pipes to the heat exchanger for hot water supply or the second indoor space.