FIELD: pumps.
SUBSTANCE: group of inventions relates to a method for operation of a circulation pump, in particular, in a heating system with a variable-speed pump drive. In the method, the pump control system modifies the current working point of the pump so as to reduce the noise emission of the pump. The control system has access to at least one reference field of sound characteristics, preferably to the one stored in the memory apparatus of the system. Said reference field of sound characteristics represents the corresponding noise emission level of the pump for multiple working points of the pump. The pump control system increases the rotation frequency of the current working point of the pump until a more acoustically favourable working point is reached.
EFFECT: ensured operation of the circulation pump in a heating system.
8 cl, 2 dwg
