Invention Grant
- Patent Title: Variable speed blower control for HVAC systems
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Application No.: US16029175Application Date: 2018-07-06
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Publication No.: US10801765B2Publication Date: 2020-10-13
- Inventor: Der-Kai Hung , Roger Hundt
- 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 ; F24F11/64 ; F24F11/46

Abstract:
A temperature control system that includes a sensor, a variable speed blower, and a controller. The controller is configured to receive an air temperature measurement from the sensor and determine a temperature value based on the received air temperature measurement. The controller is further configured to compare the determined temperature value to a first threshold value and a second threshold value and to operate the variable speed blower based on the comparison. The controller is configured to set the variable speed blower to a first fan speed when the temperature value is below the first threshold value and to a second fan speed when the temperature value is above the second threshold value. The controller is further configured to set the variable speed blower to a third fan speed that linearly correlates with temperature when the temperature value is between the first threshold and the second threshold.
Public/Granted literature
- US20200011579A1 VARIABLE SPEED BLOWER CONTROL FOR HVAC SYSTEMS Public/Granted day:2020-01-09
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