Electrical Connection - Wilo ElectronicControl Notice De Montage

English
7.1 Installation
• Install the ElectronicControl in a room with easy access, normal ventilation and
protection against frost and rain and very close to the pump.
• For any maintenance works enough space shall be provided around the instal-
lation. An easy access from at least both sides of the installation shall be
ensured.
CAUTION! Risk of malfunction!
The ElectronicControl axis shall be correctly positioned in a vertical line.
The ElectronicControl shall be connected to the pump discharge pipes next
after the check valve (Fig. 2). The piping diameter shall be the same or bigger
than the one of the ElectronicControl. A complete tightness of the installation
shall be ensured, in case of a leakage the system might run over a cycle and then
be damaged. The installation piping shall not apply any stress on the Electron-
icControl.
CAUTION! Risk of product and subsequent damages!
Do not put any foreign matters into the ElectronicControl when installating
it (glue, treacle, chips ...),
The assembling of a check valve directly at the ElectronicControl suction (Fig. 2,
Pos. 3) is mandatory to ensure a right operating of the ElectronicControl. A blad-
der tank over 2 liter volume (Fig. 2, Pos. 4) shall allow an optimal regulation of
the pressure inside the installation. A pre-setting pressure 0.5 bars lower than
the set point pressure is recommended.
A filter or a suction strainer shall be assembled to avoid any pumping of particles
that might hinder the proper operating of the ElectronicControl.

7.2 Electrical connection

DANGER! Danger of electric shock!
The electrical connection shall only be carried out by an electrician approved
by the local electricity supply company and according to the local regulations
in force.
7.2.1 Electric connection of the ElectronicControl
The ElectronicControl shall be installed with cables provided by the manufac-
turer. If a cable is damaged, have it replaced by a qualified personnel.
The type of current and the network voltage shall comply with the characteris-
tics of the ElectronicControl. See identification plate of the ElectronicControl.
It is recommended to install a 30 mA differential circuit breaker and a 16 A mag-
neto-thermal protection.
DANGER! Danger of electric shock!
Do not forget the earth connection of the motor.
For the electric connection of the installation to the network the ElectronicCo-
ntrol plug shall be connected to the electric network.
25 WILO SE 05/2011