Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 30

en-US
CAUTION
Property damage caused by improper electrical connection!
An inadequate mains design can lead to system failures and cable fires due to mains over-
load!
If the wrong voltage is applied, the pump can be damaged!
Applying incorrect voltage to SELV lines will result in incorrect voltage in all pumps and on-
site building automation devices, which are connected to the SELV line, and can damage
them!
• When designing the power supply with regard to the used cable cross-sections and fuses, pay special at-
tention to the fact that, in multi-pump operation, it is possible that all pumps operate at the same time for
short periods!
• When switching the pump on or off using an external control device, deactivate any power supply voltage
pulse (e.g. burst-fired control)!
• Check switching the pump via triacs/solid-state relays on a case-by-case basis!
• Make sure that the SELV lines have a maximum voltage of 24 V!
7.1 Requirements
NOTICE
Always observe nationally applicable guidelines, standards, and regulations and specifica-
tions from local energy supply companies!
DANGER
Risk of fatal injury from electric shock!
Even if the LED is not illuminated, voltage may be present inside the electronic module!
Failure to install protection devices (e.g. module cover of electronic module) can cause elec-
tric shock, potentially resulting in life-threatening injuries!
• Always deactivate the power supply from the pump and if necessary SSM and SBM!
• Never operate the pump without a closed module cover!
CAUTION
Danger of property damage caused by improper electrical connection!
• Ensure that the current type and voltage of the power grid connection correspond to the
specifications on the pump rating plate.
• Refer to current type and voltage on the rating plate.
• Connect and secure both motors individually if using twin-head pumps.
30 Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10