Wilo Stratos GIGA Notice De Montage Et De Mise En Service page 127

10.5 Switching on the pump
Installation and operating instructions • Wilo-Stratos GIGA, Wilo-Stratos GIGA-D, Wilo-Stratos GIGA B • Ed.01/2024-02
NOTICE
The flow value shown on the IR Stick's display or that is output to the
building management system must not be used to control the pump.
This value is merely an indicator of general trends.
A flow value is not output on every pump type.
CAUTION
Risk of material damage!
An inadequate volume flow can lead to damage on the mechanical seal;
the minimum volume flow depends on the speed of the pump.
• Make sure that the volume flow does not fall below the minimum
value Q
min
Approximate calculation of Q
Q = 10 % x Q x actual speed / max. speed
min max pump
CAUTION
Risk of property damage!
• Do not operate the pump with the shut-off devices closed.
• Only operate the pump within the permissible operating range.
Once all preparatory work has been properly completed and all necessary precautionary
measures have been taken, the pump is ready to start.
Before starting up the pump, check whether:
• Filling and venting lines are closed.
• All protective devices (coupling guard, module cover etc.) are correctly attached and
tightened.
• All blind flanges are removed.
• The shut-off device on the suction side of the pump is completely opened.
• The shut-off device in the pressure pipe of the pump is completely closed or only
slightly opened.
NOTICE
It is recommended to attach a flow meter to determine the exact pump
delivery rate.
DANGER
Risk of fatal injury due to lack of protective devices!
Due to missing protective devices of the terminal box or in the range of
the coupling/motor, electric shock or contact with rotating parts can lead
to life-threatening injuries.
• Immediately after the conclusion of all work, all the provided safety
and protection equipment items must be properly installed and put
into operation!
• Switch on the pump: Restore power supply.
• After reaching the speed, slowly open the shut-off device in the pressure pipe and ad-
just the pump to the duty point.
• While the pump is starting, vent completely via the venting device.
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