Switching On And Off; During Operation - Wilo Flumen OPTI-TR 20-1 Instrucciones De Instalación Y Funcionamiento

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7.6

Switching on and off

7.7

During operation

32
Commissioning
▪ Check that the installation has been performed correctly and according to the locally appli-
cable regulations:
– Has the mixer been earthed?
– Has the connection cable route been checked?
– Has the electrical connection been made in accordance with regulations?
– Are mechanical components correctly attached?
▪ Check operating conditions:
– Min./max. fluid temperature tested?
– Has the maximum immersion depth been checked?
– Intermittent operation: Is the maximum switching frequency being adhered to?
▪ Check installation site/operating space:
– Has the minimum water level above propeller been defined and monitored?
– Min. fluid temperature can drop below 3 °C: Monitoring device with automatic deactiva-
tion installed?
– No installations within the direct rotary range of the propeller?
The mixer must switch on and off using a separate operating point (on/off switch,
switchgear) set by the customer.
During the start process, the rated current is exceeded for several seconds. Current con-
sumption continues to be slightly above the rated current until the operating temperature
of the motor is reached and the flow in the basin increases. During regular operation, the
rated current should no longer be exceeded. CAUTION! If the mixer does not start up,
switch off immediately. Remove the fault before reactivating!
WARNING
Risk of burns due to hot surfaces!
The motor housing can get hot during operation. This can lead to burns. Allow the motor
to cool down to ambient temperature after switching off!
WARNING
The propeller blade has sharp edges!
Sharp edges can form on the propeller blades. There is a risk of limbs being severed. Wear
safety gloves to protect against cuts.
During operation, observe the local regulations on the following subjects:
▪ Workplace safety
▪ Accident prevention
▪ Handling electrical machines
Strictly adhere to the personnel's work plan determined by the operator. All personnel are
responsible for adhering to the work plan and regulations!
▪ Operating voltage (+/-10 % of the rated voltage)
▪ Frequency (+/-2 % of the rated frequency)
▪ Current consumption between the individual phases (max. 5 %)
▪ Voltage difference between the individual phases (max. 1 %)
▪ Max. switching frequency
▪ Minimum immersion of the propeller
▪ Smooth/low-vibration running
Increased current consumption
Depending on the fluid and the flow, the current consumption may vary slightly. If current
consumption is elevated for a longer period, this indicates a change in configuration. The
cause for a change in circumstances could be:
WILO SE 2019-01