HEAT SUPPLY APPARATUS AND METHOD FOR CONTROLLING THEREOF
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Jul 17, 2024
filing date -
Jul 17, 2024
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Abstract
A heat supply apparatus comprises: a compressor compressing refrigerant; a first heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and water; a second heat exchanger being connected to the compressor through a refrigerant pipe and exchanging heat between refrigerant and air; a first expansion device disposed in a refrigerant pipe connecting the first heat exchanger and the second heat exchanger; a second expansion device connected to the first expansion device in parallel and opened and closed according to an electrical signal; and a controller controlling the degree of opening of the second expansion device, wherein, if heating operation is started, and temperature of water flowing into the first heat exchanger is higher than temperature of refrigerant flowing into the first heat exchanger, the controller opens the second expansion device.
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