METHOD FOR CONTROLLING A CIRCULATION PUMP IN AN INSTALLATION COMPRISING AT LEAST TWO CIRCULATION CIRCUITS
First Claim
1. A method for controlling a circulation pump in an installation with at least two circulation circuits, with which the circulation pump is integrated by way of a switch-over valve into the one or another of the circulation circuits depending on a switched position, the method comprising the steps of:
- activating the pump differently depending on the switched position of switch-over valve;
detecting a switch-over procedure by determining a pressure course and/or a flow rate course in the pump or an electrical variable which is dependent thereon, of the motor driving the pump; and
operating the pump in another manner upon detecting the switch-over procedure.
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Accused Products
Abstract
A method controls a circulation pump (1) in an installation with at least two circulation circuits (3, 4), with which the circulation pump (1) is integrated by way of a switch-over valve (2) into the one or the other circulation circuit (3 or 4) depending on the switched position. The pump (1) is activated differently depending on the switched position of the switch-over valve (2). The switch-over procedure is detected by way of determining the pressure course and/or the flow rate course in the pump (1) or an electrical variable which is dependent thereon, of the motor driving the pump, and the pump (1) is operated in another manner accordingly.
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Citations
15 Claims
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1. A method for controlling a circulation pump in an installation with at least two circulation circuits, with which the circulation pump is integrated by way of a switch-over valve into the one or another of the circulation circuits depending on a switched position, the method comprising the steps of:
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activating the pump differently depending on the switched position of switch-over valve; detecting a switch-over procedure by determining a pressure course and/or a flow rate course in the pump or an electrical variable which is dependent thereon, of the motor driving the pump; and operating the pump in another manner upon detecting the switch-over procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A circulation pump assembly comprising:
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a speed-controllable electric motor; a centrifugal pump driven by the electric motor pump being integrated into an installation with one or the another of at least two circulation circuits by way of a switch-over valve depending on the a switched position for delivery into one circulation circuit; and a control for the speed control of the motor, wherein the control takes the steps of; activating the pump differently depending on the switched position of switch-over valve; detecting a switch-over procedure by determining a pressure course and/or a flow rate course in the pump or an electrical variable which is dependent thereon, of the motor driving the pump; and operating the pump in another manner upon detecting the switch-over procedure. - View Dependent Claims (12, 13, 14, 15)
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Specification