The pump curve of a heating pump displays the feed rate on the x-axis and the delivery head on the y-axis. The pump curve shown in the graph is curved, dropping off from left to right.
The dry running alarm is triggered if the motor is running and the flow rate is less than 0.07 m³/h and the pressure is lower than the pressure set on the pressure switch.
The dynamic total delivery head is also referred to as the
The number of switching cycles is unlimited, as the SQ/SQE is equipped with soft start integrated into the motor.
A: Circulator pumps are generally used to circulate hot water. The temperature of the pumped medium is transferred to the pump, and it is normal for the pump's surface to be warm or even hot.
Dry running of the pump can damage the mechanical seal and the motor. For this reason, the float switches should be arranged so that the fill level in the shaft does not fall below the minimum level required to operate the pump.
Yes, that is possible. To do so, connect one phase and the neutral conductor.
No, this is not possible, since the housing and the heads are designed to fit together.
In order to increase the service life of both pump and motor, weather protection should always be provided.
These days, heating systems are designed as hydraulically closed systems. This means that the building height need not be taken into account when designing the pump.