English (GB)
13
8.2 Pressure switch
Some models of the pump is fitted with an adjustable
pressure switch as dry-running protection. The
pressure switch is fitted to the inlet manifold.
If necessary, adjust the lower switching point by
turning screw A and adjust the upper switching point
to a value higher than the lower switching point by
turning screw B. See fig. 3.
Fig. 3 Adjustment of switching points
9. Setting the product
9.1 Operating panel
Fig. 4 Standard operating panel
* CME Boosters cannot communicate via radio.
If the inlet pressure is below the lower
switching point, the system cannot start.
If the pressure switch has stopped the
system during operation due to the inlet
pressure being too low, the inlet pressure
must increase to a pressure that is higher
than the setting of the upper switching
point before the system can restart.
Do not set the lower switching point to a
value below the minimum inlet pressure.
TM05 8436 2313
Pos. Description
A Low pressure SP
B High pressure SP
TM05 4848 3512
Pos. Symbol Description
1
Grundfos Eye
Shows the operating status of
the pump.
See section 14. Further
product information.
2-
Light fields for indication of
setpoint.
3 Changes the setpoint.
4
Enables IR communication
with Grundfos GO Remote
and other products of the
same type.*
5
Makes the pump ready for
operation/starts and stops the
pump.
Start:
If the button is pressed when
the pump is stopped, the
pump will only start if no other
functions with higher priority
have been enabled. See
section 14. Further product
information.
Stop:
If the button is pressed when
the pump is running, the
pump will always be stopped.
When the pump is stopped via
this button, the "Stop" text
next to the button will be on.
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