Inverter controller, method of operation thereof and field-installable retrofit kit incorporating the same
US9677797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2011 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Sep 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An inverter controller, a method of operating a controller and a field-installable kit. In one embodiment, the controller includes: (1) a thermostat interface configured to receive conventional thermostat signals providing for a ventilation mode, first- and second-stage cooling modes and at least one heating mode and provide relay control signals for an inverter forward start relay, first- and second-stage cooling speed select relays and at least one heating relay and (2) an inverter controller coupled to the thermostat interface and configured to receive the relay control signals and provide an inverter forward start signal, an inverter high speed set, an inverter medium speed set and an inverter ventilation speed set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.