8
4. Electrical connection
The electrical connection and protection must be
carried out in accordance with local regulations.
• The pump requires no external motor protection.
• Check that the supply voltage and frequency cor-
respond to the values stated on the pump name-
plate.
4.1 Supply voltage
1 x 230-240 V –10%/+6%, 50/60 Hz.
4.2 Connection to the electricity supply
5. Start-up
Do not start the pump until the system has been
filled with liquid and vented. Furthermore, the re-
quired minimum inlet pressure must be available at
the pump inlet, see section 10. Technical data. The
system cannot be vented through the pump.
5.1 Condensed water in control box
To prevent problems with condensed water in the
control box, the pump temperature should be ap-
proximately the same as the ambient temperature
before start-up.
The pump must be connected to an ex-
ternal mains switch with a contact sepa-
ration of at least 3 mm in each pole.
Earthing or neutralization can be used for
protection against indirect contact.
Megging must be carried out as de-
scribed in section 9. Megging.
If the pump is connected to an electric in-
stallation where an earth leakage circuit
breaker (ELCB) is used as additional pro-
tection, this circuit breaker must trip out
when earth fault currents with DC content
(pulsating DC) occur.
The earth leakage circuit breaker must
be marked with this symbol:
Step Action
1
TM03 0898 0705
2
TM03 0899 0705
7 mm
12 mm
3
TM03 0900 0705
4
TM03 0901 0705
5
TM03 0902 0705
6
TM03 0520 0105
Step Action
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