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US 2019/0056160 A1Published application
Air-conditioning apparatus
AssigneeMitsubishi Electric Corporation
InventorsMisaki KODA, Naomichi TAMURA, Yutaka AOYAMA
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Abstract
In plural heat-source-side heat exchangers included in an outdoor unit of an air-conditioning apparatus, bypasses for defrosting are provided with flow-rate adjusting mechanisms for refrigerant flowing into the bypasses. The flow rates of the refrigerant which are to be adjusted by the flow-rate adjusting mechanisms are determined in accordance with ambient environments of plural heat-source-side heat exchangers.
Claims4
An air-conditioning apparatus comprising:
- an outdoor unit including a compressor, a flow-path switching unit and plural heat-source-side heat exchangers, the compressor, the flow-path switching unit and the heat-source-side heat exchangers being connected by pipes;
- and an indoor unit connected to the outdoor unit to air-condition a target space,
- wherein the outdoor unit includes:
- plural bypasses each having ends one of which is, in connection by pipes in the outdoor unit, connected to a discharge side of the compressor, and the other of which is connected to a suction side of the compressor, the bypasses being configured to cause refrigerant to flow through lower parts of the plural heat-source-side heat exchangers during a defrost operation of the air-conditioning apparatus;
- and
- flow-rate adjusting mechanisms provided in the respective bypasses to adjust flow rates of refrigerant flowing into the plural bypasses.
3 more elements
Dependencies are inferred from the claim text.