Method and apparatus for automatic descaling of tankless water heaters
US9410708B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 2, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | May 16, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system for descaling a water heating unit, said system comprising (so that the abstract is directed to the presently allowed apparatus, rather than a method): a pump; a descaling solution source; a plurality of valves; a programmable control module operatively coupled to said pump, said descaling solution source, and said valves, said programmable control module adapted to selectively receive a user-defined descaling operation start date and time, monitor for the advent of a descaling operation start date and time, and upon the advent of the descaling operation start date and time, automatically shut off via at least one valve, a supply of heated water, and automatically activate said pump; said pump adapted to automatically pump stored descaling solution, and further adapted to automatically rinse a water heating unit; and said programmable control module further adapted to cause said valves to discharge solution from said water heating unit, restore a supply of heated water, and return said water heating unit to normal operation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.