| CPC F25B 41/20 (2021.01) [F25B 13/00 (2013.01)] | 7 Claims |
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1. An air conditioner comprising:
a heat-source-side unit comprising:
a compressor; and
a heat-source-side heat exchanger;
use-side units each comprising a use-side heat exchanger;
an intermediate unit that causes the use-side heat exchanger of each of the use-side units to
individually function as an evaporator or a radiator of a refrigerant; and
three or more connection pipes that connect the heat-source-side unit to the intermediate unit, wherein
the intermediate unit comprises:
an ejector that pressurizes the refrigerant; and
a gas-liquid separator into which the refrigerant flowing out from the ejector flows,
the refrigerant that has released heat in any of the use-side units that perform a heating operation is not pressurized by the ejector,
the intermediate unit further comprises:
a first pipe that allows the refrigerant to flow between the heat-source-side heat exchanger and the use-side heat exchanger of one of the use-side units;
a first valve disposed in the first pipe; and
a second pipe that:
branches from a branch point of the first pipe between the heat-source-side heat exchanger and the first valve,
allows the refrigerant to flow to a driving-flow inlet of the ejector, and
the intermediate unit is configured such that the refrigerant, after having released the heat at one of the use-side units that perform the heating operation, flows through the first valve and then through the branch point.
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