Technical Terms; Dry-Run Protection - Kessel Minilift F Instructions D'installation, D'utilisation Et D'entretien

GENERAL
1.6.

Technical terms

Various technical terms are used in this operating and maintenance manual.
Dry run
The product is running at full speed, however, there is no liquid to be pumped. A dry run is to be strictly avoided.
If necessary, a safety device must be installed.
"wet" installation type
This installation type requires the product to be immersed in the pumped fluid. It is completely surrounded by the
pumped fluid. Please observe the values for the maximum submersion depth and the minimum water coverage.
"dry" installation type
In this installation type, the product is installed dry, i.e. the pumped fluid is delivered to and discharged via a
pipeline system. The product is not immersed in the pumped fluid. Please note that the surfaces of the product
become very hot!
"transportable" installation type
With this installation type the product is equipped with a pedestal. It can be installed and operated at any location.
Please observe the values for the maximum submersion depth and the minimum water coverage, and remember
that the surfaces of the product become very hot.
"S1" operating mode (continuous operation)
At the rated load, a constant temperature is reached that does not increase even in prolonged operation. The
operating equipment can operate uninterruptedly at the rated load without exceeding the maximum permissible
temperature.
"S2" operating mode (short-term operation)
The operating time is specified in minutes, for example, S2-20. That means, that the machine can work 20 minutes
and should pauses after it, as long as the machine is cooled down to 2K over medium temperature.
Operating mode „S3" (intermittent operation):
For these operating modes, after the abbreviation, the duty cycle is displayed as well as the cycle duration if it
deviates from 10 minutes. Example S3 30% means, that the machine can work 3 minutes and afterwards should
pauses 7 minutes.
"Sip operation"
Siphoning operation is similar to dry running. The product operates at full speed, but only small amounts of liquid
are pumped.
Sip operation is only possible with certain types; see the "Product description" chapter.

Dry-run protection

The dry-run protection is designed to automatically shut down the product if the water level falls below the mini-
mum water coverage value of the product. This is made possible by installing a float switch.
Level control
The level control is designed to switch the product on or off depending on the filling level. This is made possible
by installing a float switch.
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