The pump switch improves the efficiency of the hot water supply to the distributor resulting in an increased operating efficiency of the pump and in saving energy costs.
Unless heating water is delivered in the heating, the circulation pump is switched off at a temperature, which is above the preset temperature.
At a temperature, which is below the preset temperature, the pump c that the circulation pump is switched on. The switch-on temperature of the switch is adjustable.
It prevents the circulation pump from seizing outside the heating system due to calcification. During this time, the circulation pump is put into operation for approx 30 - 60 seconds.

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