9
Electrical installation
WARNING!
Risk of electric shock
This pump is supplied with a grounding conductor
and a grounding-type attachment plug.
– To reduce the risk of electric shock, ensure
that it is connected only to a proper grounding-
type receptacle.
WARNING!
Risk of electric shock
In the event of an electrical accident, the pump
must be quickly disconnected from the mains.
– Install an emergency cut-off switch in the pump
power supply line or
– Integrate the pump in the emergency cut-off
management of the system and inform per‐
sonnel of the isolating option.
WARNING!
Danger of electric shock
Supply voltage may be present inside the pump
housing.
– Safely and quickly disconnect the pump from
the mains/power supply if the pump housing
has been damaged.
Only return the pump to operation after an
authorised repair.
CAUTION!
Material damage possible due to power surges
Should the pump be connected to the mains power
supply in parallel to inductive consumers (such as
solenoid valves, motors), inductive power surges
can damage the control when it is switched off.
– Provide the pump with its own contacts
(Phase) and supply with voltage via a contactor
relay or relay.
– Should this not be possible, then switch a
varistor (part no. 710912) or an RC gate (0.22
µF/220 Ω, part no. 710802) in parallel.
Electrical installation
29
