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Wilo-Comfort-N-Vario COR MVISE/VR

Pressure boosting system with 2 to 4 non-self-priming stainless steel high pressure centrifugal pumps connected in parallel equipped with speed-controlled glandless motor

  • Fully automatic water supply and pressure boosting in residential, office and administration buildings, hotels, hospitals, stores and also in industrial systems
  • Pumping of drinking water and process water, cooling water, fire-fighting or other process water that does not attach the materials used either chemically or mechanically and does not contain any abrasive or long fibre particles
Special features/Product advantages
  • More or less noise-free system through 2 - 4 stainless steel glandless high pressure centrifugal pumps connected in parallel and equipped with integrated water-cooled frequency converter
  • up to 20 dB[A] quieter than conventional systems with comparable hydraulic power
  • Control bandwidth of frequency converter from 20 to 50 Hz
  • Reliable through the use of pump series MVISE with integrated dry-running detection and automatic de-activation if the water level is low
Wilo-Comfort-N-Vario COR MVISE/VR
Technical data

  • Mains connection 3~400 V, 50 Hz
  • Fuse A, AC 3 on mains side corresponding to motor power and utility regulations
  • Max. fluid temperature 50 C
  • Operating pressure 16 bar
  • Inlet pressure 6 bar
  • Nominal connection widths R/Rp 2 DN 80
  • Protection class IP 44
Equipment
  • 24 pumps with glandless motors per system
  • Infinitely variable control operation through pumps with integrated frequency converter
  • Corrosion-resistant components in contact with fluid
  • Galvanised base frame with height-adjustable vibration absorbers for structure-borne sound insulation
  • Pipework in stainless steel 1.457
  • Gearbox ball shut-off valve/ring shut-off valve on suction and pressure side of each pump
  • Non-return valve on pressure side
  • 8 l diaphragm pressure vessel, 8 l, PN16, on pressure side
  • Pressure sensor, discharge side
  • Pressure gauge (admission pressure side) available as option
  • Pressure gauge (discharge side)
  • Low water cut-out switchgear available as an option
Description/Design
  • Base frame: galvanised and provided with height-adjustable vibration absorbers for extensive structure-borne sound insulation; other versions available on request
  • Pipework: complete pipework in stainless steel 1.4571, suitable for connecting all pipe materials used in the building service; the pipework is dimensioned according to the total hydraulic power of the pressure boosting system
  • Pumps: 2 to 4 pumps connected in parallel, series MVISE 2.., 4.., 8. are used; frequency converters adapted to the pump motor allow infinite control of all the pumps in these series; all the pump components in contact with the fluid are in stainless steel 1.4301 (AISI 304)
  • Fittings: each pump is equipped on the suction and pressure side with a gearbox ball shut-off valve in CuZn, Ni-coated, with DVGW test mark or ring shut-off valves and a non-return valve on the pressure side, material POM, with DVGW approval mark, in the CuZn housing
  • Diaphragm pressure vessel: 8 l/PN 16, provided on the end pressure side, with butyl rubber diaphragm, safe according to the foodstuffs act; for test and inspection purposes, provided with a ball shut-off valve in CuZn, Ni-coated, with drain and through-flow valve according to DIN 48077
  • Pressure sensor: 4 to 20 mA, provided on the end pressure side for activating the central Comfort Vario controller
  • Pressure display: admission pressure and end pressure side via pressure gauge ( 63 mm); End pressure also displayed digitally on the alphanumeric LCD display of the Comfort Vario controller
  • controller: the system is equipped with a Vario controller VR
Materials
  • Impellers stainless steel 1.4301
  • Stage chambers stainless steel 1.4301
  • Pump housing stainless steel 1.4301
  • Shaft stainless steel 1.4122
  • Seals EPDM (EP851)
  • Housing cover stainless steel 1.4301
  • Lower part of housing stainless steel 1.4301
  • Pressure jacket stainless steel 1.4301
  • Bearing carbon, impregnated with synthetic resin
  • Pump foot FGL 250
Scope of delivery
  • Pressure boosting system ready for connection, assembled at the works, function and leaktightness checked
  • Packing
  • Installation and operating instructions
Wilo-Comfort-N-Vario COR MVISE/VR
Dynamic name Name Nominal size 1-phase / 3-phase Rated power 
COR-4 MVISE 806-2G/VR-EB R3  PN 16 3~ 400 V 2 kW 
COR-4 MVISE 803-2G/VR-EB R3  PN 16 3~ 400 V 1,1 kW 
COR-4 MVISE 410-2G/VR-EB R 2½  PN 16 3~ 400 V 2 kW 
COR-4 MVISE 406-2G/VR-EB R 2½  PN 16 3~ 400 V 1,1 kW 
COR-4 MVISE 404-2G/VR-EB R 2½  PN 16 3~ 400 V 1,1 kW 
COR-4 MVISE 210-2G/VR-EB R 2  PN 16 3~ 400 V 2 kW 
COR-4 MVISE 206-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-3 MVISE 806-2G/VR-EB R3  PN 16 3~ 400 V 2 kW 
COR-3 MVISE 803-2G/VR-EB R3  PN 16 3~ 400 V 1,1 kW 
COR-3 MVISE 410-2G/VR-EB R 2  PN 16 3~ 400 V 2 kW 
COR-3 MVISE 406-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-3 MVISE 404-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-3 MVISE 210-2G/VR-EB R 2  PN 16 3~ 400 V 2 kW 
COR-3 MVISE 206-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-2 MVISE 806-2G/VR-EB R3  PN 16 3~ 400 V 2 kW 
COR-2 MVISE 803-2G/VR-EB R3  PN 16 3~ 400 V 1,1 kW 
COR-2 MVISE 410-2G/VR-EB R 2  PN 16 3~ 400 V 2 kW 
COR-2 MVISE 406-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-2 MVISE 404-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW 
COR-2 MVISE 210-2G/VR-EB R 2  PN 16 3~ 400 V 2 kW 
COR-2 MVISE 206-2G/VR-EB R 2  PN 16 3~ 400 V 1,1 kW