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11. Commissioning, Operation
Warning
The surface of the motor may be so hot
that it may cause personal injury in terms
of burns.
Provide protection against accidental
contact with hot surfaces.
Wear protective clothing, if required.
Warning
Danger from rotating parts!
Only switch on the electric stirrer when it is
mounted in a suitable tank.
When commissioning, all components of
the system must be ready for operation.
Caution
Observe the installation and operating
instructions for the components.
The electric stirrer must not run dry.
The signal of the level switch is designed
for switching off the motor, if the minimum
level of liquid in the tank is reached.
Caution
Only switch on the stirrer, if the propeller is
immersed in the liquid.
Minimum liquid level above the propeller,
see section
10.3 Installation
Depending on the installation, the electric
Note
stirrer is switched on and off with an
external control unit.
12. Maintenance
In the event of contamination or deposits, the electric
stirrer (shaft and propeller) can be cleaned.
12.1 Cleaning
Warning
The surface of the motor may be so hot
that it may cause personal injury in terms
of burns.
Wear protective clothing, if required.
Warning
Before starting maintenance work, switch
off the entire system and disconnect the
power supply.
Warning
Maintenance work must be carried out by
qualified and trained personnel.
Observe the installation and operating
instructions for the motor used.
Warning
Observe the local regulations for safety,
health and environment.
12
Caution
12.1.1 Removal
1. Remove electrical connections.
2. Loosen the 4 retaining screws of the electric
stirrer.
3. Lift the electric stirrer vertically out of the dosing
tank.
– Do not twist the shaft or strain it with the weight
12.1.2 Cleaning
Use appropriate cleaning agents to clean the shaft
and propeller.
12.1.3 Installation
1. Install the stirrer vertically on the dosing tank with
4 screws.
– Do not twist the shaft or strain it with the weight
2. Make sure that the shaft and propeller are not
touching any point of the tank.
3. Before commissioning, re-establish electrical
connections. Check the direction of rotation.
dimensions.
13. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
See also end-of-life information at
www.grundfos.com/product-recycling.
waste disposal authorities. The separate collection
and recycling of such products will help protect the
environment and human health.
Protect the shaft and propeller against
shock, impact and twisting.
Do not hold or transport the electric stirrer
by the shaft or propeller.
of the motor.
of the motor.
The crossed-out wheelie bin symbol on
a product means that it must be
disposed of separately from household
waste. When a product marked with this
symbol reaches its end of life, take it to a
collection point designated by the local
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