Hot water heater systems and methods for controlling electronic mixing valves
US9696043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Feb 29, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/395
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Hot water heater systems and methods for controlling electronic mixing valves of hot water heater systems are disclosed. An electronic mixing valve provides a flow of water in a mixed output line. A method includes determining a temperature value inside a hot water tank of the hot water heater, and comparing the hot water tank temperature value to a setpoint temperature value. The method further includes comparing a temperature value for water in the mixed output line to a lower setpoint threshold value when the hot water tank temperature value is greater than the setpoint temperature value, wherein the lower setpoint threshold value is less than the setpoint temperature, and setting the electronic mixing valve to a safe position wherein the electronic mixing valve is less than fully open when the temperature value for water in the mixed output line is less than the lower setpoint threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.