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The earth terminal of the pump must
be connected to earth.
The pump must be connected to an
external mains switch with a minimum
contact gap of 3 mm in all poles.
• The pump requires no external motor protec-
tion.
• The operating voltage and frequency are
marked on the pump nameplate. Make sure
that the motor is suitable for the electricity
supply on which it will be used.
• Mains connection is to be carried out as
shown in
• The green indicator light on the pump termi-
nal box indicates that the electricity supply
has been switched on.
5. Start-up
Do not start the pump until the system has
been filled with liquid and vented. Furthermore,
the required minimum inlet pressure must be
available at the pump inlet, see section
7. Technical data. The system cannot be
vented through the pump.
As the pump is self-venting, it need not be
vented before start-up.
When the inspection screw is slack-
ened (see
der high pressure may escape. Care
should be taken to ensure that the es-
caping liquid does not cause personal
injury or damage to other compo-
nents.
The pump may be noisy, when first switched
on, due to air remaining in the chamber. This
noise should cease after a few minutes run-
ning.
.
), scalding hot liquid un-
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