Install Instructions

2. Open all isolating valves.
3. Open the tapping point that is the highest or furthest away from
the pump to let out air trapped in the system.
4. Turn on the pump's power supply. All the symbols on the
operating panel will light up briefly. The Stop icon remains on.
5. Press the Start/Stop button to start the pump. If there is a
suction lift, it may take up to five minutes before the pump
delivers water depending on the length and diameter of the inlet
pipe.
6. When the water flows through the tapping point without air,
close the tapping point. The pump will stop after approx. 10
seconds.
7. The startup is now completed, and the pump is ready for
operation.
7.3 Operation
7.3.1 Normal operation
When water is consumed in the water supply system, the pump
starts if the starting conditions of the pump are fulfilled. This
happens, for example, when a tap is opened, making the pressure
in the system drop.
The pump stops when the consumption stops, i.e. when the tap is
closed.
7.3.1.1 Starting and stopping conditions
Starting conditions
The pump starts when at least one of the following conditions is
fulfilled:
• The flow is higher than Qmin (1.5 l/min).
• The pressure is lower than pstart.
Stopping conditions
The pump stops with a time delay of 10 seconds when both of the
following conditions are fulfilled:
• The flow is lower than Qmin (1.5 l/min).
• The pressure is higher than pstart.
The pstart values are shown in Technical data.
7.4 Shaft seal run-in
The shaft seal faces are lubricated by the pumped liquid. A slight
leakage from the shaft seal of up to 10 ml per day or 8 to 10 drops
per hour may occur. Under normal conditions, the leaking liquid will
evaporate. As a result, no leakage will be detected.
When the pump is started for the first time, or when the shaft seal
has been replaced, a certain run-in period is required before the
leakage is reduced to an acceptable level. The time required for this
depends on the operating conditions, that is, every time the
operating conditions change, a new run-in period will be started.
Leaking liquid will drain through the drain holes in the motor flange.
Install the product in such a way that leakage cannot cause
undesirable collateral damage.
8. Control functions
8.1 Operating panel
SCALA1
Stop
TM075407
Symbol Description
Grundfos Eye: The indicator light shows the
operating status of the product.
Start/Stop:Press the button to make the product ready
for operation or to start and stop the product.Start:If
you press the button when the product is stopped, the
product starts if no other functions with higher priority
have been enabled. Stop:If you press the button when
the product is running, the product always stops.
Pump is stopped. The stop icon will light up on the
display.
Bluetooth connect button enables communication with
Grundfos GO Remote. Connection indicator light. It will
light up when the connection to Grundfos GO Remote
is established.
Reset the alarms.
The following alarm lights indicate an issue with installation:
Leakage in the system.
Dry-running or water shortage.
The maximum runtime has been exceeded.
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English (GB)