Modular tankless water heater control circuitry and method of operation
US7164851B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/429
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Control circuitry is disclosed for use with a tankless water heater system including a plurality of water conduits connected in series. The control circuitry includes a plurality of water heater elements, one each associated with each of the plurality of water conduits. A controller includes a central processing unit (CPU) with an operating program and each of the plurality of water heater elements are coupled to the CPU. The CPU is programmed to individually activate one of the water heater elements to a predetermined power level in response to a demand for heated water. The number of water heater elements activated and the power level of the activation is determined by the demand for heated water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.