Startup; Storing The Product - Grundfos SE Serie Notice D'installation Et De Fonctionnement

8. Startup

DANGER
Electric shock
Death or serious personal injury
‐
Make sure the pump is grounded.
FM
Pumps in dry installation must be vented.
Before the first startup and after a long standstill period,
FM
make sure that the pump is filled with the pumped liquid.
Make sure that the pump is filled with the pumped liquid.
FM
Dry running is not allowed.
In case of abnormal noise or vibrations, stop the pump
immediately. Do not restart the pump until the cause of the
fault is identified and eliminated.
Proceed as follows:
1. Remove the fuses or switch off the main switch.
2. Check the motor liquid level in the cooling chamber.
3. Check if the impeller can rotate freely.
4. Check if the switches are closed, replace if necessary.
5. Check whether the monitoring units, if used, are operating
properly.
6. For pumps in submerged installation, make sure that the pump
is submerged in the liquid.
7. For pumps in dry installation, make sure that there is liquid in
the pit.
8. Open the isolating valves, if fitted.
9. Check if the system is filled with liquid and vented.
10. Check the setting of the level switches.
11. Start the pump and check the operation for abnormal noise or
vibrations.
12. After startup, the actual pump duty point must be established.
Make sure the operating conditions are met.
The pump may only be started for a short period
without being submerged for checking the direction of
rotation.
Always operate the pump in accordance with established routines
and perform scheduled checks of pump monitoring equipment and
accessories. Make sure that the pump and equipment settings
cannot be changed by unauthorized persons.

9. Storing the product

For periods of storage, the pump must be protected against
moisture and heat.
After a period of storage, inspect the pump before putting it into
operation. Make sure that the impeller can rotate freely. Pay
attention to the condition of the shaft seals, O-rings and the cable
entries.
Leave the cable end protectors on the power and control
cables until starting the electrical connection. Whether
insulated or not, the free cable end must never be
exposed to moisture. Non-compliance with this may cause
damage to the motor.
If the pump is being stored for more than a month, turn the
impeller at least every month to prevent the seal faces of
the lower mechanical shaft seal from seizing up.
Avoiding this may cause damage to the shaft seal when
the pump is started.
If the impeller cannot be turned, contact an authorized
service workshop.
WARNING
Crushing hazard
Death or serious personal injury
‐
Do not turn the impeller by hand. Always use an
appropriate tool.
On pumps fitted with guide vane, be careful not to
damage the guide vane when turning the impeller.
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