Wilo-Comfort-Vario COR MHIE.../ECe


  • Compact system with optimal price-performance ratio thanks to the use of MHIE series stainless steel high-pressure centrifugal pumps with integrated air-cooled frequency converters
  • Extremely wide control range
  • Integrated full motor protection with thermal sensor (PTC)
  • Integrated dry run detection with automatic switch-off in the event of absence of water by controlling the motor electronics
  • ACS, KTW, WRAS approval for potable water on all components in contact with pumped fluid (EPDM)


Pressure booster set with 2-3 parallel-coupled, normally aspirated stainless steel high-pressure multistage centrifugal pumps with integrated frequency converters


  • Fully automatic water supply and pressure boosting from mains water supply or receiving tank for private, commercial, industrial and municipal applications (e.g. domestic, commercial and office buildings, hotels, hospitals, industrial facilities, water supply companies).
  • Pumping potable water, process water, cooling water and water for other technical needs that is chemically and mechanically compatible with the materials used and does not contain abrasive or long-fibre constituents


  • 2-3 MHIE pumps per installation
  • Infinitely variable control by pumps with integrated frequency converter
  • Corrosion resistant parts in contact with the pumped liquid
  • Galvanized base frame with height adjustable anti-vibration mounts for noise isolation
  • Shut-off valves on suction and pressure sides of each pump
  • Pressure side check valve
  • Diaphragm pressure tank 8 l, PN 10, pressure side
  • Pressure gauge on outlet side
  • Pressure gauge on outlet side, optional
  • Pressure gauge on outlet side optional
  • Dry run protection available as an option
  • ECe control system with IP54 metal housing, consisting of an internal power supply unit, microprocessor, digital input and output modules for the control of electronic pumps and frequency converters

Scope of delivery

  • Pressure boosting system factory-assembled, tested for fault-free function and tightness, ready for connection
  • Packaging
  • Installation and operating instructions

Model overview

Those. information

Explanation of the name

Example: Wilo-COR-3 MHIE 406 / ECe
COR Compact booster system with integrated speed control
3 Number of pumps
MHIE Pump Series
4 Nominal volumetric flow [m 3 / h] single pump
06 Number of single pump sections
ECe Regulation block; ECe = Easy Control with electronically controlled pumps

Technical specifications

  • Electrical connection 3-phase 400 V ± 10 %, 50 Hz; 3~380/440 V ± 10 %, 60 Hz, depending on type also 1-phase 230 V, 50/60 Hz (other versions on request)
  • Max. medium temperature 50 °C (optionally 70 °C)
  • Max. ambient temperature 40 °C
  • Working pressure 10 bar
  • Inlet pressure 6 bar
  • Nominal diameters for connection on the discharge side R 2" - DN 100
  • Nominal diameters for connection on supply side R 2" - DN 100
  • Speed range 1200-3770 rpm
  • Protection class IP 54
  • Communication via ModBus RTU
  • A, AC 3 fuses on mains side according to motor rating and power supply company regulations
  • Permissible pumped liquids (other fluids on request) Approved liquids are water, which does not contain abrasive or long-fibre constituents and which does not attack the materials used chemically or mechanically
    • Cooling water
    • drinking water and service water;


Single pump:

  • Impellers, sections, pump casing made of stainless steel 1.4301/1.4404
  • Stainless steel shaft 1.4404
  • EPDM (EP851)/FKM (Viton) seals
  • Tungsten carbide/graphite sliding mechanical seal
  • Bearings made of tungsten carbide
  • Pump support made of aluminum


  • Support frame: galvanized, with height-adjustable anti-vibration mounts, providing good isolation of casing noise. Other models available on request.
  • Pipe trains: complete stainless steel trains, suitable for the connection of all kinds of pipe materials used in building services equipment, designed in accordance with the total hydraulic capacity of the pressure booster unit.
  • Pumps: 2 to 3 pumps of the MHIE 2, 4, 8 and 16 series connected in parallel are used; frequency converters mounted on the pump motor enable infinitely variable regulation for each pump of these series. All pump parts in contact with the pumped liquid are made of stainless steel 1.4301/1.4404
  • Fittings: Every pump is equipped on the suction and delivery side with a ball check valve with DVGW approval mark or with globe valves and on the delivery side with a non-return valve with DVGW approval mark.
  • Diaphragm pressure vessel 8 l/PN 10, arranged on the discharge side, with a butyl rubber diaphragm in accordance with food safety laws; equipped with a shut-off ball valve for inspection and testing purposes, with a drainage system and flow fittings according to DIN 4807
  • Pressure sensor: 4 to 20 mA, arranged on the discharge side for controlling the central ECe controller
  • Pressure display: Pressure gauge ø 63 mm on the inlet and outlet pressure sides; additional digital indication of the outlet pressure on the alphanumeric LCD display of the ECe controller
  • Controller: The unit is equipped with an ECe controller as standard


Wilo-Economy, Wilo-Comfort Vario Download
Wilo-Control EC/ECe-Booster Download



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