Wilo Control EC-L Notice De Montage page 69

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Fig. 15: Overview of connection symbol
6.5.9 High water alarm connection with
separate float switch
Fig. 16: Overview of connection symbol
6.5.10 "Extern OFF" connection: Remote
deactivation
Fig. 17: Overview of connection symbol
6.5.11 Connection of a level actual value
display
Installation and operating instructions Wilo-Control EC-L
Installation
Min. water level (operating mode "fill")
The minimum water level can also be monitored by a float switch:
▪ Open: min. water level
▪ Closed: water level sufficient
The terminals are fitted with a converter bridge at the factory.
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Remove the converter bridge and connect the wires to the terminal
strip according to the connection diagram. For details on the terminal number, see the
overview of connections in the cover.
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
The high water level can also be monitored by a float switch:
▪ Open: no high water alarm
▪ Closed: high water alarm
NOTICE! A separate signal transmitter for the high water level is recommended as an
additional system safety measure.
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Connect the wires to the terminal strip according to the connection
diagram. For details on the terminal number, see the overview of connections in the
cover.
DANGER! Risk of explosion due to incorrect connection! If the connected float
switch is used in potentially explosive atmospheres, observe the potentially explos-
ive atmospheres section in the appendix!
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
Remote deactivation of all pumps can be performed using a separate switch:
▪ Closed: Pumps enabled (terminals are fitted with a converter bridge at the factory)
▪ Open: All pumps off – The "Extern OFF" symbol appears on the display.
If the alarm is activated in menu 5.39, in the "fill" operating mode, an audible alarm
sounds in addition to the symbol appearing.
NOTICE! The remote deactivation has priority. All pumps are deactivated independ-
ently of the level measurement. Manual mode and forced switch-on of the pumps is
not possible!
Insert the connection cable laid by the customer through the threaded cable connec-
tions and secure. Remove the converter bridge and connect the wires to the terminal
strip according to the connection diagram. For details on the terminal number, see the
overview of connections in the cover.
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
en
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