Air-conditioning apparatus

摘要

A multi-chamber type air-conditioning apparatus is provided in which a refrigerant whose effect on human bodies is a concern is prevented from leaking into a room or the like in which an indoor unit is installed, simultaneous operation of cooling and heating is possible, and performance deterioration by a refrigerant flow control device or drop of the cooling capacity of the indoor unit can be prevented.;A heat-source-side refrigerant cycle A in which compressor 11, an outdoor heat exchanger 13, a second refrigerant flow control device 25b, a first intermediate heat exchanger 21, a first refrigerant flow control device 25, a second intermediate heat exchanger 22, and a third refrigerant flow control device 25c are connected in series and a use-side refrigerant cycle B in which each of the first intermediate heat exchanger 21 and the second intermediate heat exchanger 22 and each indoor heat exchanger 31 are connected in series, and in each of the first intermediate heat exchanger 21 and the second intermediate heat exchanger 22, and a heat-source-side refrigerant circulating through the heat-source-side refrigerant cycle A and a use-side refrigerant circulating through the use-side refrigerant cycle B are made to exchange heat.

主权项

1. An air-conditioning apparatus comprising:
a heat-source-side refrigerant cycle in which a compressor, an outdoor heat exchanger, a plurality of intermediate heat exchangers, and a first refrigerant flow control device disposed between each of the intermediate heat exchangers are connected in series, and a first bypass pipe which bypasses the first refrigerant flow control device through a first opening/closing device is disposed; and a plurality of use-side refrigerant cycles in which a plurality of indoor heat exchangers are connected in parallel with the plurality of intermediate heat exchangers, respectively, wherein the compressor and the outdoor heat exchanger are disposed in an outdoor unit; the plurality of intermediate heat exchangers, the first refrigerant flow control device, the first bypass pipe, and the first opening/closing device are disposed in a relay unit; the indoor heat exchanger is disposed in each of a plurality of indoor units; each of the plurality of intermediate heat exchangers exchanges heat between a heat-source-side refrigerant circulating through the heat-source-side refrigerant cycle and a use-side refrigerant circulating through the use-side refrigerant cycle.