A refrigeration cycle apparatus comprising: a first refrigerant circuit connecting a refrigerant discharging portion of a compressor , a condenser , a first expansion valve , a first evaporator , and a refrigerant suction portion of an ejector ; a second refrigerant circuit branching off from connection piping between an outlet side of the condenser and the first expansion valve , and connecting to a refrigerant inflow portion of the ejector ; and a third refrigerant circuit connecting a refrigerant outflow portion of the ejector , a second evaporator , and a refrigerant suction portion of the compressor , characterized by : the first evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the first refrigerant circuit and a liquid heat medium different from the refrigerant, the liquid heat medium being water or brine, the second evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the second refrigerant circuit and the liquid heat medium, the liquid heat medium being supplied from outside, flowing in the second evaporator and the first evaporator in this order, and then flowing out to the outside, wherein the first evaporator and the second evaporator are disposed side by side in a horizontal direction, and the ejector is disposed such that the refrigerant inflow portion of the ejector is positioned higher than the refrigerant outflow portion of the ejector . a first refrigerant circuit connecting a refrigerant discharging portion of a compressor , a condenser , a first expansion valve , a first evaporator , and a refrigerant suction portion of an ejector ; a second refrigerant circuit branching off from connection piping between an outlet side of the condenser and the first expansion valve , and connecting to a refrigerant inflow portion of the ejector ; and a third refrigerant circuit connecting a refrigerant outflow portion of the ejector , a second evaporator , and a refrigerant suction portion of the compressor , characterized by : the first evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the first refrigerant circuit and a liquid heat medium different from the refrigerant, the liquid heat medium being water or brine, the second evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the second refrigerant circuit and the liquid heat medium, the liquid heat medium being supplied from outside, flowing in the second evaporator and the first evaporator in this order, and then flowing out to the outside, wherein the first evaporator and the second evaporator are disposed side by side in a horizontal direction, and the ejector is disposed such that the refrigerant inflow portion of the ejector is positioned higher than the refrigerant outflow portion of the ejector . the first evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the first refrigerant circuit and a liquid heat medium different from the refrigerant, the liquid heat medium being water or brine, the second evaporator being a water heat exchanger to exchange heat between refrigerant flowing in the second refrigerant circuit and the liquid heat medium, the liquid heat medium being supplied from outside, flowing in the second evaporator and the first evaporator in this order, and then flowing out to the outside, wherein the first evaporator and the second evaporator are disposed side by side in a horizontal direction, and the ejector is disposed such that the refrigerant inflow portion of the ejector is positioned higher than the refrigerant outflow portion of the ejector . <EOS>