Resetting To Factory Settings; Servicing The Product; Maintaining The Product - Grundfos SCALA Series Installation And Operating Instructions Manual

8.3.3 Auto reset
The factory setting for this function is "on".
On
This function allows the pump to automatically check if the
operating conditions are back to normal. If the operating
conditions are back to normal, the alarm indication will be reset
automatically.
The auto reset function works in the following way:
Indication Action
The pump will attempt eight restarts at
Water shortage five-minute intervals. If not successful,
this cycle will be repeated after 24 hours.
Dry running (pump
Prime the pump and reset it manually.
not primed)
The pump will attempt three restarts
within the first 60 seconds, then eight
All other indications restart attempts at five-minute intervals. If
not successful, this cycle will be repeated
after 24 hours.
For indications, see section 7.1.2 Indicator lights for
Off
All alarms must be reset manually by means of the
8.3.4 Anti cycling
The factory setting for this function is "off".
This function monitors the starts and stops of the pump.
Off
If the pump starts 40 times in a fixed pattern, there will be an
alarm. The pump will remain in operation as normal.
On
If the pump starts and stops in a fixed pattern, there is a leakage
in the system, and the pump will stop and show alarm 3.
Leakage in the system.
8.3.5 Maximum continuous operating time
The factory setting for this function is "off".
This function is a timer that can turn off the pump if it runs
continuously for 30 minutes.
Off
If the pump exceeds the running time of 30 minutes, the pump will
run depending on the flow.
On
If the pump exceeds the running time of 30 minutes, the pump will
stop after 30 minutes of continuous operation, and it will show
alarm 6. This alarm will always need to be reset manually.
Maximum runtime exceeded.

8.4 Resetting to factory settings

The pump can be reset to factory setting by pressing the
buttons simultaneously for 5 seconds.

9. Servicing the product

9.1 Maintaining the product

9.1.1 Insect filter
The pump has an insect filter to prevent insects from nesting in
the pump.
The filter is placed on the bottom and can easily be removed and
cleaned with a stiff brush. See fig. 19.
Clean the insect filter once a year or as needed.
SCALA2.
button.
Fig. 19 Insect filter
9.1.2 Inlet and outlet valves
The pump is maintenance-free, but we recommend that you
check and clean the inlet and outlet non-return valves once a
year or as needed.
Fig. 20 SCALA2 pump
To remove the inlet non-return valve, follow the steps below:
1. Turn off the power supply and disconnect the power plug.
2. Shut off the water source.
3. Open a tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.
5. Gradually open and remove the priming plug. See fig.
6. Remove the drain plug and drain the pump. See fig.
7. Unscrew the union nut holding the inlet connection. See fig.
20 (7). Depending on the installation type, it may be
necessary to remove the pipes from both the inlet and outlet
connections.
8. Pull out the inlet connection.
9. Pull out the inlet non-return valve.
10. Clean the non-return valve with warm water and a soft brush.
11. Assemble the components in reverse order.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off
and that it cannot be accidentally switched on.
1
2
3
4
9
5
6
7
8
20 (5).
20 (8).
11