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6.8 Dry-running protection
If the pump is running and the liquid level in the tank
or pit becomes lower than the dry-running level, the
dry-running protection will stop the pump to ensure
that it is not damaged.
Dry-running protection is dependent on a feedback
signal from a level sensor installed in the tank or pit.
6.8.1 Setting the dry-running level with Grundfos
GO Remote
1.
Go to Settings > Level control > Dry-running
level.
2.
Set the dry-running level.
The dry-running level must be set to a
value which ensures that the pump is
not damaged due to dry-running. The
specific level depends on the installed
pump type. See the installation and
operating instructions for the product.
6.8.2 Setting the dry-running level with the
operating panel
1.
Press and hold OK until the display starts
flashing.
2.
Set the dry-running level using the Up or Down
button.
3.
Continuously press OK to confirm all other
settings and to exit the setup.
6.9 Using the same level switch for the start
and stop level
1.
Set one digital input to Start pump 1 or Stop. All
other digital inputs must be disabled.
2.
Set a stop delay.
This will prevent the pump from starting and
stopping too frequently.
6.10 "Antiseizing"
The Antiseizing function prevents a pump from
choking or seizing up as a result of deposits
buildup. Antiseizing is used in pits that have had no
inlet flow for a long period. The Antiseizing function
ensures that the pump starts as often as set
in Antiseizing > interval. The pump will operate for
the number of seconds indicated by the user.
6.10.1 Setting the "Anti-seizing" function with
Grundfos GO Remote
1.
Go to Settings > Anti-seizing.
2.
Set the function to Enabled.
3.
Set the time interval.
4.
Set the operating time.
6.11 Signal-detection time
The signal-detection time is the minimum time a level
has to be active before the control unit initiates an
action, such as starting or stopping a pump.
6.11.1 Setting the signal-detection time with
Grundfos GO Remote
1.
Go to Settings > Level control > Signal
detection time.
2.
Set the signal-detection time.
6.12 Setting the maximum number of
restarts with Grundfos GO Remote
If the pump is seized up as a result of deposits
buildup, it will be stopped automatically due to
overheating, provided that the motor protection has
been set. When the motor has cooled down, the
control unit will unsuccessfully try to restart the pump
and this scenario will be repeated.
In order to prevent this, it is possible to set a
maximum number of restart attempts within a set
interval.
1.
Go to Settings > Max number of restarts.
2.
Enable the function.
3.
Set the interval within which the allowed number
of restarts are to be counted.
4.
Set the maximum number of pump restarts which
are allowed during the set interval.
Related information
6.15.4 Setting the motor protection with Grundfos
GO Remote
6.15.1 Overheat protection
6.15.2 Overload protection
8.3 Code 4 (Too many motor restarts)
6.13 Setting the service interval with
Grundfos GO Remote
You can set a time in Grundfos GO Remote in order
to get a reminder that the pump needs service when
the time comes.
1.
Go to Settings > Service > State
2.
Select Enable and press OK.
3.
Select the pump.
4.
Enter the number of hours until next service and
press OK.
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