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Les langues disponibles
MXE 12_15
20.10.2006
43
12:37 Uhr
Seite 43
english
6. Commissioning/Operating check
6.1 General remarks
Fill the system correctly and vent.
Only put the pump into operation when the plant has been filled.
Switch on the power supply.
6.2 Operating check
The pump runs so quietly that a metal rod or a srewdriver has to
be placed on the pump and held to you ear when making the
acoustic operating check.
6.3 Venting
Deaeration of the pump, in particular the motor area, is
implemented automatically after a short period of operation.
However, if very rapid deaeration is required, proceed as follows:
- Switch pump off
- Reduce system pressure to 0.5 bar
- Release the screw plug so far
(approx. one turn in an anti-clockwise direction)
until water emerges.
There is a risk of scalding
Depending on the temperature and system pressure, hot pump
medium can emerge in the form of liquid or steam.
- Never remove the screw plug completely –
the pump can suck in air.
Powerful escape of liquid.
- Switch the pump on and off 5 to 8 times until
only water emerges at the screw plug.
- Tighten screw plug.
- Increase system pressure again.
- Switch pump on.
6.4 Power regulation
The required delivery head is set by means of the rotary switch
on the pump terminal box (uniformly from 1 ... max. see imprint
on cover).
Thanks to this inifinitely variable regulation, the pump can adjust
to the respective requirements of the system (see section 6.6).
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