Electrical Connection - Wilo VeroLine-IPL Serie Einbau- Und Betriebsanleitung

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IPL
Fig. 10: IPL/DPL with horizontal motor shaft
7.2

Electrical connection

Safety
Preparation/notes
32
NOTE
The installation position with horizontal motor shaft is permitted for
the IPL and DPL series only up to a motor power of 7.5 kW (fig. 10).
NOTE
The motor terminal box must not face downward. If necessary, the
motor or motor impeller unit can be rotated once the hexagon head
bolts have been loosened. While rotating the motor or motor impeller
unit, ensure that the housing O-ring seal does not become damaged.
DPL
NOTE
When pumping out of a tank, ensure that the liquid level is always
high enough above the suction port of the pump so that the pump
never runs dry. The minimum intake pressure must be observed.
NOTE
In the case of insulated systems, only the pump housing may be insu-
lated, not the lantern and motor.
The motors are each equipped with condensation water holes, which
are sealed with a plug at the factory (to ensure protection class IP 55).
In the event of an accumulation of condensation water, e.g. when
used in air-conditioning/cooling systems, this plug must be removed
downwards so that condensation water can drain.
DANGER! Risk of fatal injury!
An improper electrical connection can result in a fatal electrical
shock.
• Have the electrical connection established by an electrician
approved by the local electricity supplier only and in accordance
with local regulations.
• Observe the installation and operating instructions for the acces-
sories!
WARNING! Risk of mains overload!
An inadequate mains design can lead to system failures and even to
cable fires due to mains overload.
• When designing the mains, with regard to the cable cross-sections
and fuses, give special consideration to the fact that short-term
simultaneous operation of all pumps is possible in multi-pump
operation.
• The electrical connection must be established via a fixed power cable,
which is provided with a plug device or an all-pole switch with a con-
tact opening width of at least 3 mm (in accordance with VDE 0730
Part 1 in Germany).
• The connection line is to be installed in such a way that it cannot
under any circumstances come into contact with the pipe and/or the
pump and motor housing.
• In order to ensure drip protection and strain relief on the threaded
cable connection, cables are to be used which have a sufficient outer
diameter and are to be screwed sufficiently tightly. To get rid of any
drips that accumulate, the cables are to be bent into a drain loop near
the threaded cable connection.
• Position the threaded cable connection or lay the cables accordingly
to ensure that no drips can run into the terminal box.
• Non-assigned threaded cable connections must remain sealed with
the plugs provided by the manufacturer.
• When pumps are used in systems with water temperatures above
90 °C, a suitably heat-resistant power cable must be used.
• Check the current type and voltage of the mains connection.
WILO SE 11/2017