Wilo-Comfort-Vario COR-1 MHIE...-GE-R

Water-supply unit with a non-self-priming high-pressure multistage centrifugal pump and integrated speed control

• For fully automatic water supply in inlet mode, either from the public water supply network or from a tank.
• Pumping of drinking water, process water, cooling water, fire water (apart from fire-extinguishing systems in accordance with DIN 14462 and with the approval of the local fire safety authorities) or other types of industrial water that do not attack the materials either chemically or mechanically and do not contain abrasive or long-fibre constituents.

• 1 MHIE series pump with infinitely variable control mode via integrated frequency converter
• All components in contact with fluid are corrosion resistant
• Shut-off valve, on the pressure side
• Non-return valve, pressure side
• Diaphragm pressure vessel 8 l, PN16

• Mains connection 3~400 V ± 10 %, 50 Hz; 3~380/440 V ±10 %, 60 Hz or, depending on type, also 1~230 V ± 10 %, 50/60 Hz
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature 40 °C
• Operating pressure 10 bar
• Inlet pressure 6 bar
• Nominal connection diameters on inlet side Rp 1" - Rp 2"
• Nominal connection diameters on discharge side R 1¼" - R 1½"
• Speed range 1160 - 3500 rpm
• Protection class IP 54
• Fuse protection on mains side [AC 3] according to motor power and EVU regulations
• Approved fluids (other fluids on request):
  • Pure water without settling sediments
  • Process water, cold water, cooling water and rainwater
  • Drinking water

• Impellers 1.4301/1.4404 stainless steel
• Stage chambers 1.4301/1.4404 stainless steel
• Pump housing made of 1.4301/1.4404 stainless steel
• Shaft 1.4301/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pump base aluminium
• Pipework made of 1.4571 stainless steel

• Base frame: Stainless steel with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise
• Pipework: complete pressure-side pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 1 pump from the series MHIE 2.., 4.., 8.. or 16.. (up to max. motor power of 2.2 kW) is used; the adapted, air-cooled frequency converter on the pump motor enables continuous auto control between 25 Hz and a maximum of 60 Hz for all pumps of these series; all pump components in contact with fluid are made of stainless steel.
• Valves: the pump is fitted on the pressure side with a shut-off valve with DVGW approval mark and a DVGW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807

• Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
• Packaging
• Installation and operating instructions

Other mains connections on request

Pressure reducer

Fluctuating inlet pressure is compensated by the speed control integrated into each single pump as long as the pressure fluctuation is not greater than the difference between the setpoint pressure value and the zero-delivery head of the single pump at minimum speed. If the pressure fluctuation is greater, a pressure reducing valve must be installed upstream of the system.

Residual-current devices

When installing residual-current-operated protection switches in conjunction with frequency converters, bear in mind that only universal-current-sensitive residual-current-operated protection switches in accordance with DIN/VDE 0664 are to be fitted.

Inlet pressure

The maximum inlet pressure (see Technical data) is to be observed for the system configuration. The maximum inlet pressure is calculated from the maximum system operating pressure minus the maximum pump delivery head at Q = 0.

Only for fire protection systems

Version in accordance with DIN 1988 (EN 806), part 5+6

This does not apply to fire-extinguishing systems in accordance with DIN 14462. Please request these separately.

Always observe the specifications in DIN 1988 (EN 806) when using and operating the pressure boosting system.

Low-water cut-out switchgear (WMS)

The installed Helix VE pump type already has integrated dry-running detection as safety equipment for the pump.

Electronics/EMC details

• Single-pump system up to and including 7.5 KW motor power:
  • Emitted interference in accordance with the specifications in EN 61000-6-3
  • Interference resistance in accordance with the specifications in EN 6100-6-1
• Single-pump systems with 11-22 kW motor power:The product meets the specifications of EN 61800-3 and fulfils the requirements of residential areas in terms of emitted interference and the requirements of industrial areas in terms of interference resistance. For applications in residential areas, an EMC radio interference filter is also to be provided for interference suppression on the mains side in accordance with EN 61800-3, class B1.

Note: Systems to be utilised in residential buildings must be installed by personnel who have completed EMC training.

• Mains connection 3~400 V ± 10 %, 50 Hz; 3~380/440 V ±10 %, 60 Hz or, depending on type, also 1~230 V ± 10 %, 50/60 Hz
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature 40 °C
• Operating pressure 10 bar
• Inlet pressure 6 bar
• Nominal connection diameters on inlet side Rp 1" - Rp 2"
• Nominal connection diameters on discharge side R 1¼" - R 1½"
• Speed range 1160 - 3500 rpm
• Protection class IP 54
• Fuse protection on mains side [AC 3] according to motor power and EVU regulations
• Approved fluids (other fluids on request):
  • Pure water without settling sediments
  • Process water, cold water, cooling water and rainwater
  • Drinking water

• Impellers 1.4301/1.4404 stainless steel
• Stage chambers 1.4301/1.4404 stainless steel
• Pump housing made of 1.4301/1.4404 stainless steel
• Shaft 1.4301/1.4404 stainless steel
• Gasket EPDM (EP 851) / FKM (Viton)
• Housing cover made of 1.4301/1.4404 stainless steel
• Housing bottom 1.4404 stainless steel
• Mechanical seal B-carbon/tungsten carbide, SiC/carbon
• Pressure shroud 1.4301/1.4404 stainless steel
• Bearing, tungsten carbide
• Pump base aluminium
• Pipework made of 1.4571 stainless steel

• Base frame: Stainless steel with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise
• Pipework: complete pressure-side pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 1 pump from the series MHIE 2.., 4.., 8.. or 16.. (up to max. motor power of 2.2 kW) is used; the adapted, air-cooled frequency converter on the pump motor enables continuous auto control between 25 Hz and a maximum of 60 Hz for all pumps of these series; all pump components in contact with fluid are made of stainless steel.
• Valves: the pump is fitted on the pressure side with a shut-off valve with DVGW approval mark and a DVGW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807

• Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
• Packaging
• Installation and operating instructions

Other mains connections on request

Pressure reducer

Fluctuating inlet pressure is compensated by the speed control integrated into each single pump as long as the pressure fluctuation is not greater than the difference between the setpoint pressure value and the zero-delivery head of the single pump at minimum speed. If the pressure fluctuation is greater, a pressure reducing valve must be installed upstream of the system.

Residual-current devices

When installing residual-current-operated protection switches in conjunction with frequency converters, bear in mind that only universal-current-sensitive residual-current-operated protection switches in accordance with DIN/VDE 0664 are to be fitted.

Inlet pressure

The maximum inlet pressure (see Technical data) is to be observed for the system configuration. The maximum inlet pressure is calculated from the maximum system operating pressure minus the maximum pump delivery head at Q = 0.

Only for fire protection systems

Version in accordance with DIN 1988 (EN 806), part 5+6

This does not apply to fire-extinguishing systems in accordance with DIN 14462. Please request these separately.

Always observe the specifications in DIN 1988 (EN 806) when using and operating the pressure boosting system.

Low-water cut-out switchgear (WMS)

The installed Helix VE pump type already has integrated dry-running detection as safety equipment for the pump.

Electronics/EMC details

• Single-pump system up to and including 7.5 KW motor power:
  • Emitted interference in accordance with the specifications in EN 61000-6-3
  • Interference resistance in accordance with the specifications in EN 6100-6-1
• Single-pump systems with 11-22 kW motor power:The product meets the specifications of EN 61800-3 and fulfils the requirements of residential areas in terms of emitted interference and the requirements of industrial areas in terms of interference resistance. For applications in residential areas, an EMC radio interference filter is also to be provided for interference suppression on the mains side in accordance with EN 61800-3, class B1.

Note: Systems to be utilised in residential buildings must be installed by personnel who have completed EMC training.