Starting Up The Product After Standstill; Deblocking The Pump; Taking The Product Out Of Operation - Grundfos SCALA2 Instructions Manual

12. Starting up the product after standstill

1. Check that the pump is not blocked by following the instructions
in section 12.1 Deblocking the
2. If the pump has been drained, it must be filled with liquid before
startup. See section 7.1 Priming the
3. Start up the pump. Follow the instructions in section
up the product.
4. The pump will remember the controller settings even if it is
turned off.
Related information
7. Starting up the product
7.1 Priming the pump
12.1 Deblocking the pump

12.1 Deblocking the pump

DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply before you start any work
on the product. Make sure that the power supply can-
not be switched on accidentally.
The end cover incorporates a plug which can be removed by means
of a suitable tool. This makes it possible to deblock the pump shaft
if it has seized up as a result of inactivity.
Deblocking the pump

13. Taking the product out of operation

If the pump is taken out of operation for a period of time, for
example during the winter, it must be disconnected from the power
supply and placed in a dry location.
Proceed as follows:
1. Stop the pump by means of the on/off button
2. Disconnect the power supply.
3. Open a tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.
5. Gradually loosen the priming plug to release the pressure in the
pump.
6. Remove the drain plug to drain the pump. See the figure below.
7. We recommend storing the pump indoors in a dry location. Due
to humidity, the disconnected pump must not be left outside for
a longer period of time.
20
pump.
pump.
7. Starting
.
Draining the pump