Heat pump system reversing valve fault recovery
AssigneeHaier US Appliance Solutions, Inc.
InventorsJoshua Duane Longenecker, Bryan Isaac D’Souza
Life of this patent
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Abstract
A method of operating a heat pump system includes detecting a fault condition of a reversing valve of a sealed system and stopping a compressor of the sealed system in response to the detected fault condition of the reversing valve. The method also includes actuating the reversing valve from a first position to a second position and back to the first position after stopping the compressor. The method further includes restarting the compressor after actuating the reversing valve.
Claims18
A method of operating a heat pump system, the heat pump system comprising an outdoor portion, an indoor portion, and a sealed system coupled between the outdoor portion and the indoor portion to circulate refrigerant through an indoor heat exchanger of the indoor portion and an outdoor heat exchanger of the outdoor portion, the sealed system comprising a reversing valve to selectively reverse flow direction of the refrigerant, the method comprising:
- detecting a fault condition of the reversing valve;
- stopping a compressor of the sealed system in response to the detected fault condition of the reversing valve;
- actuating the reversing valve from a first position to a second position and back to the first position after stopping the compressor;
- and
- restarting the compressor after actuating the reversing valve.
A heat pump system, comprising:
- an outdoor portion;
- an indoor portion;
- a sealed system coupled between the outdoor portion and the indoor portion to circulate refrigerant through an indoor heat exchanger of the indoor portion and an outdoor heat exchanger of the outdoor portion, the sealed system comprising a reversing valve to selectively reverse flow direction of the refrigerant;
- and
- a controller, the controller configured for:
- detecting a fault condition of the reversing valve;
- stopping a compressor of the sealed system in response to the detected fault condition of the reversing valve;
- actuating the reversing valve from a first position to a second position and back to the first position after stopping the compressor;
- and
- restarting the compressor after actuating the reversing valve.
Dependencies are inferred from the claim text.