HVAC motor control local display and adjustment methods and apparatus for same
US12025329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Dec 3, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/64
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.