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

12. Starting up the product after
standstill
1. Check that the pump is not blocked.
2. If the pump has been drained, it must be filled with
liquid before startup.
3. Start up the pump.
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 cannot 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.
Draining the pump
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