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    • 1. 发明公开
    • A WATER HEATER AND A METHOD OF OPERATING SAME
    • 热水器和操作程序THEREFOR
    • EP2820358A1
    • 2015-01-07
    • EP13754035.7
    • 2013-02-20
    • Zip Industries (Aust) Pty Ltd
    • CHERTKOW, BrianFOUKS, BorisMOULT, Kevin
    • F24H1/20F24D17/00
    • F24H9/2021A47J27/21A47J27/21008A47J27/21058A47J27/21116A47J27/21158A47J31/54A47J31/58F24H1/202G05D23/1917H05B1/0244
    • A method of determining an operating water temperature for a boiling water heater (10), the method including the following steps (a) adding water to a tank (12) to a predetermined level; (b) energising a heating means (14) within the tank (12) to heat the water in the tank (12) to an initial predetermined temperature; (c) de-energising the heating means (14) when the initial predetermined temperature is reached and measuring an initial overshoot temperature differential above the initial predetermined temperature; (d) calculating a further predetermined temperature being the sum of the initial predetermined temperature and a predetermined amount of the initial overshoot temperature differential; (e) waiting until the temperature of the water in the tank (12) has reduced by a predetermined drop from the initial predetermined temperature; (f) energising the heating means (14) within the tank (12) to heat the water in the tank (12) to the further predetermined temperature as calculated in (d) above; (g) de-energising the heating means (14) when the further predetermined temperature is reached and measuring a further overshoot temperature differential above the further predetermined temperature; (h) re-calculating the further predetermined temperature being the sum of the current further predetermined temperature and a predetermined amount of the current further overshoot temperature differential; (i) waiting until the temperature of the water in the tank (12) has reduced by a predetermined drop from the further predetermined temperature of step (h); (j) continuing steps (f) to (i) until the further overshoot temperature substantially equals the predetermined temperature, thereby becoming a boiling calibration temperature; and (k) substracting an offset temperature from the boiling calibration temperature of step (h) to thereby determine the operating water temperature.