Wilo Control EC-L, Installation And Operating Instructions Manual

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8 Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09
• drain (drain)
• fill (fill)
Selection is via the menu.
“Drain” operating mode
The reservoir or pump chamber is drained. The connected pumps are activated when the
level rises and switched off when the level falls.
“Fill” operating mode
The reservoir is filled. The connected pumps are activated when the level falls and switched
off when the level rises.
4.4 Technical data
Date of manufacture* See rating plate
Mains connection 1~220/230 V, 3~380/400 V
Mains frequency 50/60 Hz
Max. current consumption per pump 12 A
Max. rated power per pump 4 kW
Pump activation type Direct on line
Ambient/operating temperature -30 … +50 °C
Storage temperature -30 … +60 °C
Max. relative humidity 90 %, non-condensing
Protection class IP54
Electrical safety Pollution degree II
Control voltage 24 V =/~
Housing material UV-resistant polycarbonate
Details about the Hardware version (HW) and Software version (SW) can be found on the
rating plate!
*The date of manufacture is stated in accordance with ISO 8601: JJJJWww
• JJJJ = year
• W = abbreviation for week
• ww = calendar week
4.5 Inputs and outputs
Inputs Hardware
version Number of inputs
EC-L1 ... EC-L2 ... EC-L3 ...
Level measurement
Level sensor all 1 1 1
Float switch all 2 3 3
Electrode From HW 2 2 3 −
Dynamic pressure bell all 1 1 1
High water level
Float switch all 1 1 1
Electrode From HW 2 1 1 −
Dry run/low water level
Float switch all 1 1 1
Electrode From HW 2 1 1 −
Pump monitoring
Thermal winding monitor (bimetal) all 1 2 3
Thermal winding monitor (PTC) all − − −
(Electrode) leakage detection all 1 2 3
Other inputs
Extern OFF: for remote switch off of all pumps
In “fill” operating mode, dry-running protection is realised via this input. all 1 1 1