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Installation and operating instructions • Wilo-Flumen OPTI-TR 50-3 ... 120-1, Wilo-Flumen EXCEL-TRE 50-3 ... 90-2 • Ed.01/2022-07
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Securely position the mixer horizontally on a firm bearing surface.
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Secure the mixer against falling over and slipping.
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Do not set the mixer down on the propeller. In the case of larger propeller diameters, en-
sure an appropriate platform is provided.
CAUTION! Material damage! Propeller and shaft can be damaged.
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Store the mixer for a maximum of one year. Contact customer service before storing the
device for more than one year.
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Storage conditions:
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Maximum: -15 to +60 °C (5 to 140 °F), max. humidity: 90 %, non-condensing.
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Recommended: 5 to 25 °C (41 to 77 °F), relative humidity: 40 to 50 %.
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Protect the mixer from direct exposure to sunlight. Extreme heat can cause damage!
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Do not store the mixer in rooms in which welding work is carried out. The resulting gases
or radiation can corrode the elastomer parts and coatings.
•
Protect the connection cable against kinking and damage. Maintain a constant bend ra-
dius!
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Turn the propeller at regular intervals (twice a year). This prevents the bearings from
jamming and renews the lubrication film on the mechanical seal.
NOTICE! Wear pro-
tective gloves!
4
Application/use
4.1
Intended use
For suspension and homogenisation in commercial areas of:
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Process sewage
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Sewage containing faeces
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Wastewater (with small amounts of sand and gravel)
Comply with the specific dimensioning based on the operator requirements. Any other use
deviating from this is regarded as non-compliant with the intended use.
4.2
Improper use
The mixers must not be used in:
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Drinking water
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Non-Newtonian fluids
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Severely contaminated fluids containing hard components such as stone, wood, metals,
etc.
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Highly flammable and explosive fluids in pure form
5
Product description
5.1
Construction
The submersible mixer consists of the following main components:
1
2
3
4
5
6
7
8
9
Fig. 2:
Overview of the submersible mixer
1
Propeller
2
Gear, single-stage
3
Pencil electrode (optional)
4
Sealing chamber
5
Motor
6
Frame for lowering device
7
Handle grip
8
Connection cable
9
Pre-chamber
5.1.1
Motor
Wilo-Flumen OPTI-TR ...
Surface-cooled submersible motor in three-phase current design with permanently lubric-
ated und large-size rolling bearings. The motor winding is equipped with temperature
monitoring. The motor heat is given off directly to the surrounding fluid via the motor
housing. The connection cable is designed for heavy mechanical loads, sealed water pres-
