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Les langues disponibles
MXE 12_15
20.10.2006
44
12:37 Uhr
Seite 44
english
Depending on the piping system (P), the pump adjusts to the
appropriate operating point (P
changes (K➜K
; e.g. thermostat valves), the pump adjusts to the
1
new operating point (gives a saving in energy).
When it is switched on the pump runs at average power
irrespective of how the rotary switch is set.
After approx. 20 seconds the pump automatically adjusts
to the set pressure and thus to the existing operating point P
6.4.1 Basic setting
The rotary switch is set in accordance with the dimensioning
of the plant.
If no setting has been made, proceed as follows:
begin with delivery head (p. ex. 1) see section 6.6.
If the remotest radiators do not become warm, adjust the delivery
head step-by-step to higher values (..2..3..4..).
6.5 Deblocking
Switch pump off.
Shut the stop valves before and after the pump.
Risk of burning if the pump is touched.
Pump and motor can be very hot.
There is a risk of scalding
Depending on the temperatur and system pressure, hot pump
medium can escape in the form of liquid or steam.
After undoing the screw plug (water emerges through
the bearing clearance) deblock the rotor shaft with a screwdriver.
Rotate the shaft end until the resistance decreases.
Fit screw plug.
Open the stop valves before and after the pump.
Switch pump on.
Depending on the operating pressure
Warning
(sealing, slide valve), the pump rotor can become
blocked.
) after a certain time. If the system
1
.
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