EN
4
Installation
Follow the safety instructions,
. For an
overview of the printed board connections,
4.1
Installing the control unit
WARNING
Disconnect system from energy sources! Make sure
that cables and electrical components are discon-
nected from the power supply during work.
The control unit can only be opened if the main switch is
in the OFF position.
Undo screws in the housing cover and lift up housing
cover.
Mount housing in place provided; to do so, use all fixing
options of the housing.
Take the ambient conditions into account.
4.2
ATEX pump connection with equipotential bonding
The following additional requirements must be taken into
account for the electrical installation so that the pumps can
be operated in a potentially explosive atmosphere:
The minimum cross-section of the mains cables to the
control unit must be 6 mm
2
or according to the required
fusing, depending on which cross-section is larger (
).
The equipotential bonding (to EN 60079-14) is to be exe-
cuted as an earthing cable at the submersible pumps
with at least 4 mm
2
cross-section. The earthing cable is
routed, not self-tripping, between the earthing screw and
the screw retainer on the terminal.
To do this, proceed as follows:
WARNUNG
Note and follow the operating instructions and/or
leaflet of the corresponding pump
Before connecting the pump, check whether the motor
protection switch of the control unit is suitable for the
power consumption of the pump(s) (see type plate).
This system’s ATEX pumps can have a 6 or 9-wire cable.
Double assignment of the phases in the control unit is
provided for 9-wire cables.
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Installation and operating instructions
010-532_02_SON
Summary of Contents for Aqualift Comfort 400V Duo
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