Patent ID: 9404681
Filing Date: 2016-08-02
CPC Classification: F24F,F25B

Claim Text:
1. An air-conditioning apparatus comprising: an outdoor unit having outdoor devices including a compressor that compresses a refrigerant, a flow switching valve that switches a flowing direction of the refrigerant, an outdoor heat exchanger that exchanges heat between the refrigerant and outdoor air, a first expansion valve that reduces pressure of the refrigerant, an excess-refrigerant container that retains an excess refrigerant of the refrigerant, and a second expansion valve that reduces the pressure of the refrigerant, the compressor, the flow switching valve, the outdoor heat exchanger, the first expansion valve, the excess-refrigerant container, and the second expansion valve being connected in this order; and an indoor unit having an indoor heat exchanger that exchanges heat between the refrigerant and indoor air, wherein the outdoor devices and the indoor heat exchanger are sequentially connected by refrigerant pipes so that a refrigeration cycle is formed, wherein the air-conditioning apparatus further comprises at least one outdoor-heat-exchanger refrigerant injection port provided in a refrigerant pipe that is directly connected to the outdoor heat exchanger, and at least one excess-refrigerant-container refrigerant injection port provided in a refrigerant pipe that is located directly adjacent to the first expansion valve and the excess-refrigerant container, the first expansion valve and the excess-refrigerant container being located on opposing ends of the refrigerant pipe that is located directly adjacent to the first expansion valve and the excess-refrigerant container.