Resetting To Factory Settings - Grundfos SCALA2 Instructions Manual

10.3.2 Self-learning function
The factory setting for this function is "on".
On
If the pump cannot reach the user-defined pressure setpoint, the
self-learning function will automatically adjust the setpoint.
The pump will lower the setpoint to either 4.5, 3.5 or 2.5 bar (65, 51
or 36 psi).
The self-learned setpoint is indicated on the operating panel by one
flashing green light.
After every 24 hours, the pump will automatically attempt to revert
to the original user-defined setpoint. If this is not possible, the pump
will again return to the self-learned setpoint. The pump will continue
to operate with the self-learning setpoint, until the user-defined
setpoint can be reached.
Example:
The user-defined pressure is set to 5 bar (72 psi), indicated by
constant green lights on the pressure indicator panel.
The pump is unable to reach this pressure due to negative pressure
on the inlet side.
The self-learning function automatically adjusts the setpoint to 3.5
bar (51 psi), indicated by one flashing green light on the pressure
indicator panel.
After 24 hours, the pump will automatically try to adjust the setpoint
back to 5 bar (72 psi).
User-defined setpoint (left) and self-learned setpoint (right)
How to reset the self-learned setpoint
1. You can manually reset the settings by pressing any button on
the operating panel. The pump will immediately try to reach the
original setpoint.
2. If the pump keeps reducing the setpoint due to self-learning, we
recommend to reduce the setpoint manually on the operating
panel.
Off
If you set the self-learning function to off and the pump is unable to
reach the desired setpoint, the pump will show alarm 5.
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10.3.3 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 five-
Water shortage minute intervals. If not successful, this cy-
cle 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 restart at-
All other indications tempts at five-minute intervals. If not suc-
cessful, this cycle will be repeated after 24
hours.
Off
All alarms must be reset manually by means of the
Related information
9.1.2 Indicator lights for SCALA2
10.3.4 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.
10.3.5 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.

10.4 Resetting to factory settings

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