| 摘要 |
PROBLEM TO BE SOLVED: To provide a hybrid air conditioning system capable of improving cooling/heating performance by simultaneously using not only earth thermal but also solar heat during any of a heating operation and a cooling operation of an earth thermal heat pump unit.SOLUTION: When a cooling/heating switching three-way valve 10 interposed in a branch portion between a heating temperature rise bypass circuit 7 in a heat collection circuit for solar heat and a refrigerator hot water supply circuit 8 is switched to a heating operation of an earth thermal heat pump unit 3, a heating medium using solar heat as a heat source is supplied from the heating temperature rise bypass circuit to an earth thermal heat collection circuit 2 of the heat pump unit. When the cooling/heating switching three-way valve is switched to a cooling operation of the earth thermal heat pump unit, a heating medium also using solar heat as a heat source is supplied from the refrigerator hot water supply circuit to an adsorption type refrigerator 4 and then from the refrigerator via a cold water leading-out circuit 9 to a heat release circuit of the earth thermal heat pump unit.SELECTED DRAWING: Figure 1 |
