Electrical Connection; Use And Maintenance; Start And Stop - Wilo -Zeox First Installations- Und Betriebs-Anleitung

English

7.4 Electrical connection

WARNING! Electrical shock hazard!
Improper installation and electrical connection can result in fatal injury. Danger from
electrical current must be eliminated.
• Electrical work carried out by a qualified electrician only!
• All electrical work must be performed after the electrical supply has been switched off
and secured against unauthorized switching.
• For safe installation and operation a proper grounding of the pump to the power sup-
ply's grounding terminals is required.
• Check that operating current, voltage and frequency used comply with motor plating
data.
• The pump must be connected to the power supply by a solid cable equipped with a
grounded plug-connection or a main power switch.
• Three-Phase motors must be connected to an approved safety switch. The set nominal
current must correspond to the electrical data on the motor name plate.
• The supply cable must be laid so that it never touches the pipework and/or the pump and
motor casing.
• The pump/installation should be grounded in compliance with local regulations. A ground
fault interrupter can be used as extra protection.
• The connection to the network must be in accordance with the connection plan (see
Fig. 6).

8 Use and maintenance

8.1 Start and stop

For starting refer also to the motor/engine instructions. Before starting check again elec-
tric and hydraulic connections and relevant rating.
DANGER! Risk of death!
Starting must be carried on by competent personnel only.
Check that all safety procedures and their good functioning have been activated.
Isolate the surrounding area within a radius of 2 m at least with no admittance of non-
authorized persons during functioning.
WARNING! Risk of personal injury!
When the pump runs, coupling guards must be in place, tightened with all appropriate
screws.
32 WILO SE 11/2014