Invention Grant
- Patent Title: HVAC systems with evaporator bypass and supply air recirculation and methods of using same
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Application No.: US17156211Application Date: 2021-01-22
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Publication No.: US11549714B2Publication Date: 2023-01-10
- Inventor: Rakesh Goel , Vijay Sathyamurthi
- 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: F24F11/81
- IPC: F24F11/81 ; F24F3/14 ; F24F11/65 ; F24F3/048 ; F24F110/20 ; F24F110/10

Abstract:
An HVAC system includes an evaporator coil disposed between a return air duct and a supply air duct. The system includes a compressor fluidically connected to the evaporator coil, and a blower for providing a flow of air through the HVAC system. The HVAC system includes a supply air recirculation line with a recirculation damper and an evaporator bypass line with a bypass damper. A controller of the HVAC determines a recirculation portion of a flow of air and causes the recirculation damper to move to divert the recirculation portion to the recirculation line, so the air recirculates through the HVAC system. The controller determines a bypass portion of a flow of air and causes the bypass damper to move to divert the bypass portion to the bypass line, so the bypass portion does not contact the evaporator coil.
Public/Granted literature
- US20210140673A1 HVAC SYSTEMS WITH EVAPORATOR BYPASS AND SUPPLY AIR RECIRCULATION AND METHODS OF USING SAME Public/Granted day:2021-05-13
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