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Wilo-CronoLine-IL-E | Wilo
Your advantages

Your advantages

  • Energy savings due to integrated electronic power adjustment
  • Optional interfaces for bus communication using plug-in IF-Modules
  • Simple operation with Green Button Technology and display
  • Integrated dual pump management
  • Integrated full motor protection (PTC thermistor sensor) with trip electronics

Series description


Electronically controlled glanded single pump in in-line design with flange connection and automatic power adjustment


The pumping of heating water (in accordance with VDI 2035), chilled water and water-glycol mixtures without abrasive substances in heating, chilled water and cooling systems.


Operating modes

  • Δp-c for constant differential pressure
  • Δp-v for variable differential pressure
  • PID-Control
  • Constant speed (n=constant)

Manual operation level

  • Green button and display

Manual functions

  • Differential pressure setpoint setting
  • Setting the speed (manual control mode)
  • Setting the operating mode
  • Setting the pump ON/OFF
  • Configuration of all operating parameters
  • Fault acknowledgement

External control functions

  • "Overriding Off" control input
  • “External pump cycling” control input (only effective in twin-head pump operation)
  • Analogue input 0 – 10 V, 0 – 20 mA for constant speed (DDC) and remote setpoint adjustment
  • Analogue input 2 – 10 V, 4 – 20 mA for constant speed (DDC) and remote setpoint adjustment
  • Analogue input 0 – 10 V for actual value signal from pressure sensor
  • Analogue input 2 – 10 V, 0 – 20 mA, 4 – 20 mA for actual value signal from pressure sensor

Signal and display functions

  • Collective fault signal SSM
  • Collective run signal SBM

Data exchange

  • Infrared interface for wireless data exchange with IR-Stick
  • Plug-in position for Wilo IF-Modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation

Safety functions

  • Full motor protection with integrated trip electronics
  • Access disable

Dual pump management (twin-head pump or 2 x single pumps)

  • Main/standby operation (automatic fault-actuated switchover)
  • Pump cycling main/standby operation after 24 hours
  • Parallel operation
  • Parallel operation (efficiency-optimised peak-load activation and deactivation)



IL-E 50/190-11/2-R1


In-line pump with electronic control


Nominal diameter DN of the pipe connection


Nominal impeller diameter


Rated power P2 in kW


Number of poles


Version without pressure sensor

Technical data

  • Permissible temperature range of -20 °C to +140 °C
  • Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
  • Mains connection
    • 3~440 V ±10 %, 50/60 Hz
    • 3~400 V ±10%, 50/60 Hz
    • 3~380 V -5% +10%, 50/60 Hz

Compliance with electromagnetic compatibility without additional measures:

    • Interference emission for residential environment according to EN 61800-3:2018
    • Interference immunity for industrial environments according to EN 61800-3:2018
  • Protection class IP55
  • Nominal diameter DN 40 to DN 200
  • Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C


  • Pump housing and lantern: EN-GJL-250
  • Impeller
    • Standard version: EN-GJL-200
    • Special version: Bronze CuSn 10
    • Special version: Stainless steel 1.4408 (depending on type)
  • Shaft: 1.4122
  • Mechanical seal: AQEGG; other mechanical seals on request


Single-stage, low-pressure centrifugal pump in in-line design with

  • Mechanical seal
  • Flange connection
  • Lantern
  • Coupling
  • Drive with integrated electronic speed control

Scope of delivery

  • Pump
  • Installation and operating instructions


  • …-R1 variant without differential pressure sensor
  • …-L1 variant with bronze impeller (at additional charge)
  • …-L4 variant with stainless steel impeller (at additional charge)
  • …-H1 variant with housing made of ductile cast iron (at additional charge)


  • 3 Mounting brackets with fixation material for installation on a base
  • Wilo-IR-Stick
  • IF-Module PLR for connecting to PLR/interface converter
  • IF-Module LON for connection to the LONWORKS network
  • IF-Module BACnet
  • IF-Module Modbus
  • CAN IF-Module
  • VR-HVAC control system
  • Control system CCe-HVAC
  • Control system SCe-HVAC
  • Differential pressure sensor (DDG)

Installation and operating instructions

Wilo-CronoLine-IL-E, Wilo-CronoBloc-BL-E

Article Number 2227276
Edition 2023-04
Page format 209.9 x 297.0 mm
Number of pages 328
PDF (18 MB)

Wilo-CronoLine-IL-E, Wilo-CronoBloc-BL-E

Article Number 2227275
Edition 2023-04
Page format 209.9 x 297.0 mm
Number of pages 84
PDF (10 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (262 KB)