Patent ID: 6242720
Filing Date: 2001-06-05
Classification: F24D,F24H,G05D,H05B

Abstract:
A process executable by a control system for controlling at least two heating elements in a water heating system wherein a first heating element is positioned below a second heating element in a tank within the system, said process comprising the steps of:sensing the temperature of the water in the vicinity of a first sensor in the tank;providing power to the first heating element so as to thereby heat the water in the tank when the sensed temperature of the water in the vicinity of the first sensor is below a predefined set point temperature for the first sensor;noting when the sensed temperature of the water in the vicinity of the first sensor reaches the predefined set point temperature for the first sensor;proceeding to read the sensed temperature of a second sensor when the sensed temperature of the water in the vicinity of the first sensor reaches the predefined set point temperature for the first sensor; andautomatically authorizing provision of power to the second heating element only after the sensed temperature of the second sensor reaches a set point temperature for the second sensor.