English (GB)
14
8. Speed selection
The speed switch in the terminal box can be turned
to three positions. The speed in the three positions
appears from the table below:
Change to lower speed settings offers considerable
reduction in energy consumption and less noise in
the system.
Fig. 10 Pump performance, speeds 1, 2 and 3
Change the pump performance as follows:
1. Switch off the power supply to the pump with the
external mains switch. The green indicator light in
the terminal box must be off.
2. Remove the terminal box cover.
3. Pull out the speed switch module, and insert it
so that the number of the required speed is
visible through the window in the terminal box.
See fig. 11.
4. Fit the terminal box cover.
5. Switch on the power supply. Check that the green
indicator light is permanently on or flashing.
Fig. 11 Speed selection
Switch
position
Speed in % of maximum speed
Single-phase
pumps
Three-phase
pumps
1 approx. 60 % approx. 70 %
2 approx. 80 % approx. 85 %
3 100 % 100 %
TM00 9247 4595
Warning
Never make any connections in the
pump terminal box unless the power
supply has been switched off.
When changing to/from speed 1, the
cover of the speed switch must be
removed and fitted on the other side of
the switch.
The speed switch module must not be
used as an on/off switch.
TM00 9583 4996
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