Invention Grant
- Patent Title: HVAC motor control local display and adjustment methods and apparatus for same
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Application No.: US17541706Application Date: 2021-12-03
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Publication No.: US12025329B2Publication Date: 2024-07-02
- Inventor: David Lee Haessig , Ronald Sai Kit Yip , Roger Hort , Joshua Lee Welton
- Applicant: Evolution Controls Inc.
- Applicant Address: US CA Poway
- Assignee: Evolution Controls Inc.
- Current Assignee: Evolution Controls Inc.
- Current Assignee Address: US CA Poway
- Agency: Weintraub Tobin
- Agent Jo Carothers
- Main IPC: F24F11/52
- IPC: F24F11/52 ; F24F11/56

Abstract:
A method and apparatus for a visual local controller (VLC) for a variable speed motor (VS Motor) or other controlled device in an HVACR system to display the output in engineering units instead of the traditional percent of motor output or similar output, and to limit the output to a range between a high limit and a low limit, is disclosed. An engineering units display allows end users to directly see output as performed by the connected HVACR equipment. In place of zero to one-hundred percent output, the user may see torque, CFM, actual control voltage or other engineering units associated with the controlled HVACR equipment. Limiting the output allows the output to be constrained between high and low output limits to keep the connected device operating within a safe range for the HVACR equipment.
Public/Granted literature
- US20220186964A1 HVAC Motor Control Local Display and Adjustment Methods and Apparatus for Same Public/Granted day:2022-06-16
Information query