English (GB)
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4. Starting up the product
4.1 Before startup
Do not start the pump until the system has been filled with liquid
and vented. Make sure that the required minimum inlet pressure
is available at the pump inlet. See section 10. Technical data.
When using the pump for the first time, the system must be
vented at the highest point. The pump is self-venting through the
system.
4.2 Starting up the pump
4.3 Venting the pump
Fig. 7 Venting the pump
Small air pockets trapped inside the pump may cause noise when
starting up the pump. However, because the pump is self-venting
through the system, the noise ceases over a period of time.
To speed up the venting process, do as follows:
1. Set the pump to speed III using the push-button on the
operating panel.
2. Let the pump run for approximately 30 minutes. How fast the
pump is vented depends on the system size and design.
When you have vented the pump, that is when the noise has
ceased, set the pump according to the recommendations. See
section 6. Control functions.
Step Action Illustration
1
Open the inlet and
outlet valves.
TM07 0377 1518
2
Switch on the power
supply.
TM06 8555 1317
3
The lights in the
operating panel
indicates that the
power supply has
been switched on
and the pump is
running.
TM07 0378 1518
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