Wilo -Flumen OPTI-TR 22 Instrucciones De Instalación Y Funcionamiento página 29

7 Commissioning
7.1 Personnel qualifications
7.2 Operator's obligations
7.3 Rotation control
Fig. 10: Correct direction of rotation
7.4 Operation in an explosive atmos-
phere
Approval according to
ATEX
Installation and operating instructions Wilo-Flumen OPTI-TR 20-1, 22, 28-1, 30-1, 40-1, Wilo-Flumen EXCEL-TRE 20, 30, 40
Commissioning
NOTICE
Automatic activation after power cut
Depending on the process, the product is activated and deactivated using separate con-
trols. The product may automatically activate following power cuts.
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Operation/control: Operating personnel, instructed in the functioning of the complete
system
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Provide installation and operating instructions by the mixer or at a place specially re-
served for it.
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Make the installation and operating instructions available in a language the personnel can
understand.
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Make sure that the installation and operating instructions are read and understood by all
personnel.
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All safety devices and emergency cut-outs on the system-side must be active and
checked to ensure that they work properly.
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The mixer is suitable for use under the specified operating conditions.
The mixer is checked at the factory and set to the correct direction of rotation for a clock-
wise rotating field. The connection is made according to the information in the "Electrical
connection" section.
Checking the direction of rotation
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Mains connection with clockwise rotating field present.
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Rotating field inspected by a qualified electrician.
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No persons are allowed in the working area of the mixer.
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Mixer firmly installed.
WARNING! Do not touch mixer with hands! The high starting torque can lead to seri-
ous injuries!
‡
Propeller is visible.
1. Switch mixer on. Max. operating duration: 15 s!
2. Direction of propeller rotation:
View from front: The propeller rotates counter-clockwise (to the left).
View from behind: The propeller rotates clockwise (to the right).
▶ Direction of rotation is correct.
Incorrect direction of rotation
If the direction of rotation is incorrect change the connection as follows:
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Direct starting: swap two phases.
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Star-delta starting: swap connections of two windings (e.g. U1/V1 and U2/V2).
NOTICE! After changing this connection, check the direction of rotation again!
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