Invention Grant
- Patent Title: Methods and systems for operating HVAC systems in low load conditions
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Application No.: US17376392Application Date: 2021-07-15
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Publication No.: US11573038B2Publication Date: 2023-02-07
- Inventor: Der-Kai Hung
- Applicant: Lennox Industries Inc.
- Applicant Address: US TX Richardson
- Assignee: Lennox Industries Inc.
- Current Assignee: Lennox Industries Inc.
- Current Assignee Address: US TX Richardson
- Agency: Baker Botts L.L.P.
- Main IPC: F25B49/02
- IPC: F25B49/02 ; F25B5/00 ; F25B13/00 ; F25B41/20 ; F25B29/00 ; F25B41/39 ; F25B41/385

Abstract:
A system comprising a compressor, a first valve coupled to the compressor and coupled to a first coil, a first expansion valve coupled to the first coil, a second coil, and a second expansion valve. The second expansion valve coupled to a third coil, a second valve coupled to the compressor and the third coil. A controller operable to operate the first valve, the first expansion valve, the second expansion valve, and the second valve. The second coil is coupled to the compressor and the refrigerant flows from the second coil to the compressor.
Public/Granted literature
- US20210341197A1 METHODS AND SYSTEMS FOR OPERATING HVAC SYSTEMS IN LOW LOAD CONDITIONS Public/Granted day:2021-11-04
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