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Idiomas disponibles
Idiomas disponibles
4.3
Operating modes
Non-immersed operation allowed
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID
Product description
Internal monitoring of sealing chamber
This sealing chamber is equipped with an internal pencil electrode. The electrode registers
fluid ingress through the mechanical seal on the fluid side. An alarm or deactivation of the
pump can therefore take place by pump control.
External monitoring of the sealing chamber
The sealing chamber can be equipped with an external pencil electrode. The electrode regis-
ters fluid ingress through the mechanical seal on the fluid side. An alarm or deactivation of
the pump can therefore take place through the pump control.
Leakage chamber monitoring
The leakage chamber is equipped with a float switch. The float switch registers fluid ingress
through the mechanical seal on the motor side. An alarm or deactivation of the pump can
therefore take place through the pump control.
Monitoring of motor bearing
The thermal monitoring of the motor bearing protects the roller bearings against overheat-
ing. Pt100 sensors are used for temperature measurement.
Monitoring of vibration occurring due to operation
The pump can be equipped with a vibration sensor. The vibration sensor registers the vibra-
tion that occurs during operation. An alarm or deactivation of the pump must be effected
via the pump control depending on the differing limit values.
NOTICE! The limit values are set on-site during commissioning and recorded in the com-
missioning log!
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load without exceeding the permissible
temperature.
Operating mode: Non-immersed operation
The "non-immersed operation" operating mode describes the possibility of the motor
emerging during the drainage pumping sequence. This allows a further lowering of the water
level as far as the upper edge of the hydraulics.
Yes
No
Yes
Observe the following points during non-immersed operation:
▪ Operating mode: "non-immersed" indicated
The motor emerging in "non-immersed" operating mode is permissible.
▪ Operating mode: "non-immersed" not indicated
If the motor is fitted with a temperature controller (2-circuit temperature monitoring),
emergence of the motor is allowed. Automatic reactivation can be initiated after the motor
has cooled down using the low temperature. The unit is forced to deactivate with reactiva-
tion lock once the high-temperature has been reached. CAUTION! To protect the motor
winding from overheating, the motor must be equipped with a temperature controller! If
only one temperature limiter is installed, the motor must not emerge during operation.
▪ Max. fluid and ambient temperature: The maximum ambient temperature corresponds to
the maximum fluid temperature shown on the rating plate.
CAUTION! The following applies to motor T 12: During non-immersed operation, the
fluid temperature and ambient temperature must not exceed 30 °C!
Yes
No
Yes
en-US
No
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