4
General description
Grundfos Pressure Manager
The control panel of the PM 2 can be turned 360 ° in
steps of 90 °. It is thus possible to change the
orientation of the control panel depending on the
mounting position. See fig. 3.
Fig. 3 Orientation of the control panel
Flexible power supply
Due to robust electronic components, the PM 1 and
PM 2 can be powered by a generator or other
alternative power supplies.
Rotary outlet connection
The outlet connection of the PM units can be rotated
360 °. See fig. 4.
The inlet connection is an integrated part of the unit
housing.
The units have a built-in non-return valve.
Fig. 4 Rotary outlet connections
Protective functions
The PM 1 and PM 2 incorporate a number of functions
which protect both the pump and the installation.
Protective functions:
• dry-running protection
• cycling alarm
• maximum continuous operating time (30 minutes)
(PM 2 only)
The PM 2 has an auto-reset function which can be used
to automatically restart the pump.
For further information, see section Functions on
page 9.
Adaptability
The PM 2 can be adapted to the individual installation.
Via a number of DIP switches located behind the
control panel, the start pressure can be adjusted from
1.5 to 5 bar. Furthermore, the PM 2 can be set to an
operating mode with 1 bar differential pressure
between start and stop of the pump. This operating
mode is intended for systems with an external pressure
tank.
For further information, see section Functions on
page 9.
Internal pressure tank (PM 2)
The PM 2 incorporates a small internal pressure tank
which minimises the number of starts and stops of the
pump in case of minor leakages.
TM04 1951 1508TM03 9706 1708 - TM03 9707 1508
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