HVAC controller and a method for testing HVAC systems
US12326267B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2022 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Nov 16, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/64
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An HVAC controller is provided having a plurality of control terminals for connecting to corresponding control terminals on an indoor unit for an HVAC system, at least one controller power terminal for connecting to a power terminal on the indoor unit for the HVAC system, and at least one shutoff terminal for connecting to a power terminal on a thermostat for the HVAC system, and a controllable power relay electrically coupling the shutoff terminal and the controller power terminal. Interrupting power from the power terminal on the thermostat deactivates the thermostat. The controllable power relay is closed during normal HVAC system usage and is opened for a testing process, and the shutoff terminal is the only connection between the HVAC controller and the thermostat that is not electrically coupled with the indoor unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.