Direction Of Rotation; Before Activating - Wilo Vardo WEEDLESS-F Notice De Montage Et De Mise En Service

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7.4

Direction of rotation

7.5

Before activating

248
Commissioning
WARNING
No persons may remain in the working area of the mixer!
Persons can suffer (serious) injury while the mixer is in operation! No persons may
therefore be present inside the working area. If persons should enter the mixer's
working area, deactivate the mixer and safeguard it against being switched on again
by unauthorised persons!
The drive unit can be operated in clockwise or anti-clockwise rotation. The propeller's
direction of rotation determines the direction of thrust exerted by the mixer:
▪ Clockwise rotation*: Upward direction of thrust
▪ Anti-clockwise rotation*: Downward direction of thrust
NOTICE! *The information on direction of rotation exclusively relates to the mixer
when viewed from above!
NOTICE! The propeller blade direction and direction of rotation must match!
NOTICE! The system-specific direction of rotation (DoR) is marked on the rating
plate!
Checking the direction of rotation
‡
Drive unit connected to mains in accordance with the manufacturer's instructions.
‡
All connection cables laid properly.
‡
No persons in the working area of the mixer.
1. Activate the mixer.
2. Look at the propeller from above and check the direction of rotation. NOTICE! The
required direction of rotation is defined in the system configuration!
3. If the direction of rotation is incorrect, have the electrical connection changed by a
qualified electrician.
4. Check the direction of rotation again.
▶ If the direction of rotation is correct, the direction of thrust is as specified in sys-
tem configuration.
NOTICE
Take note of additional literature!
To ensure proper use, additionally read and observe the manufacturer instructions.
Before activating the mixer, check the following points:
▪ Check whether the device has been installed properly and in accordance with the locally
applicable regulations:
– Has the mixer been installed correctly and safely?
– Has the mixer been earthed?
– Has electrical connection been made in accordance with regulations?
– Has the connection cable been laid in accordance with regulations?
– Are mechanical components attached correctly?
– Have minimum clearances between the propeller and fixtures in the operating space
been observed?
▪ Check the drive unit:
– Gear: Has preservation oil been removed and the gear filled with operating oil and
cleaned?
– Has specified oil filling (type, quantity, installation position) been ensured?
– Are oil level and oil drainage screws freely accessible?
– Has the impermeability of all screwed connections on the gear been checked?
– Has the user read and implemented the manufacturer's instructions?
▪ Check the operating conditions:
– Have the directions of rotation and thrust been tested in accordance with system
specification?
– Intermittent operation – has upstream soft starter been installed?
– Have the min./max. temperatures of the fluid been tested?
WILO GVA GmbH 2019-02