Starting Up The Product; Priming The Product; Starting Up The Pump - Grundfos SCALA1 System Instructions Manual

4. Starting up the product

Do not turn on the power supply until the
pump has been filled with liquid.

4.1 Priming the product

1. Unscrew the priming plug and pour at least 1.7
litres (0.45 gallons) of water into the pump
housing.
2. Screw the priming plug on again.
Example:
Priming the pump
If the suction depth exceeds 6 m (20 ft), it
may be necessary to prime the pump more
than once.
Always tighten priming and drain plugs by
hand.
12

4.2 Starting up the pump

After installing and priming, follow the following steps
to start up the pump.
1. Prime the pump according to the priming
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.