Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual page 135

Installation and operating instructions Wilo-Yonos GIGA2.0-I/-D
Electrical connection
DANGER
Risk of fatal injury due to contact voltage!
Touching live parts will result in serious injuries or death!
Even when it is disconnected, high contact voltages can still occur in the electronic
module due to non-discharged capacitors. Therefore, work on the electronic module
must not be started until 5 minutes have elapsed!
• Disconnect all poles of the supply voltage and secure against reconnection!
• Check whether all connections (including potential-free contacts) are voltage-
free!
• Never insert objects (e.g. nail, screwdriver, wire) into openings on the electronic
module!
• Reinstall removed safety devices (such as module covers)!
DANGER
Risk of fatal electrical shock! Generator or turbine operation during
pump flow!
Even without the electronic module (without electrical connection), there may be
dangerous contact voltage at the motor contacts!
• Check for absence of voltage and cover or cordon off adjacent live parts!
• Close the shut-off devices upstream and downstream of the pump!
DANGER
Risk of fatal electrical shock!
Water on the upper part of the electronic module can enter the electronic module
when it is opened.
• Before opening, remove water, e.g. on the display, by wiping it off completely.
Avoid water penetration in general!
DANGER
Potentially fatal injury due to electronic module not being installed!
A life-threatening voltage may be present at the motor contacts!
Normal operation of the pump is only permitted with the electronic module installed.
• Never connect or operate the pump without the electronic module mounted!
CAUTION
Material damage due to improper electrical connection!
An inadequate mains design can lead to system failures and cable fires
due to mains overload!
• When designing the mains supply with regard to the used cable cross-sections
and fuses, pay special attention to the fact that, in multi-pump operation, it is
possible that all pumps operate at the same time for short periods.
CAUTION
Danger of material damage caused by improper electrical connection!
• Ensure that the current type and voltage of the mains connection correspond to
the specifications on the pump rating plate.
Threaded cable glands and threaded cable connections
There are six cable bushings to the terminal room on the electronic module. The cable
for the power supply of the electric fan on the electronic module is mounted at the
factory. The requirements for electromagnetic compatibility must be observed.
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