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Wilo-Comfort-Vario COR MHIE/VR

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

  • 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
  • Compact system with excellent price/performance ratio through stainless steel high pressure centrifugal pumps in MHIE series with air-cooled integrated frequency converter
  • Extremely wide control bandwidth
  • Integrated full motor protection via PTC
  • Integrated dry-running detection with automatic de-activation at low water via the performance characteristic of the motor control electronics
Wilo-Comfort-Vario COR MHIE/VR
Technical data

  • Mains connection 3~400 V, 50 / 60 Hz, depending on type also 1~230V, 50/60Hz
  • Fuse A, AC 3 on mains side corresponding to motor power and utility regulations
  • Max. fluid temperature. 70 C
  • Operating pressure 10 bar
  • Inlet pressure 6 bar
  • Nominal connection widths on suction side R 2 DN 100
  • Nominal connection widths on pressure side R 2 DN 100
  • Protection class IP 54
Equipment
  • 24 pumps per system
  • Infinitely variable control 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 in the series MHIE 2.., 4.., 8.. and 16.. 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 1.4301/1.4404
  • Stage chambers stainless steel 1.4301/1.4404
  • Pump housing stainless steel 1.4301/1.4404
  • Shaft stainless steel 1.4404
  • Seals EPDM (EP851)/Viton
  • Housing cover stainless steel 1.4301/1.4404
  • Mechanical seal tungsten carbide/carbon
  • Pressure jacket stainless steel 1.4301 / 1.4404
  • Bearing tungsten carbide
  • Pump foot aluminium
Scope of delivery
  • Pressure boosting system ready for connection, assembled at the works, function and leak-tightness checked
  • Packing
  • Installation and operating instructions
Wilo-Comfort-Vario COR MHIE/VR
Dynamic name Name Nominal size 1-phase / 3-phase Rated power 
COR-4 MHIE 1602-2G/ VR-EB DN 100  PN 10 3~ 400 V 2,2 kW 
COR-4 MHIE 803-2G/ VR-EB R 3  PN 10 3~ 400 V 2,2 kW 
COR-4 MHIE 406-2G/ VR-EB R 2½  PN 10 3~ 400 V 2,2 kW 
COR-4 MHIE 403-2G/ VR-EB R 2½  PN 10 3~ 400 V 1,1 kW 
COR-4 MHIE 403 EM/ VR R 2½  PN 10 1~ 230 V 1,1 kW 
COR-4 MHIE 205-2G/ VR-EB R 2  PN 10 3~ 400 V 1,1 kW 
COR-4 MHIE 205 EM/ VR R 2  PN 10 1~ 230 V 1,1 kW 
COR-3 MHIE 1602-2G/ VR-EB DN 100  PN 10 3~ 400 V 2,2 kW 
COR-3 MHIE 803-2G/ VR-EB R 3  PN 10 3~ 400 V 2,2 kW 
COR-3 MHIE 406-2G/ VR-EB R 2  PN 10 3~ 400 V 2,2 kW 
COR-3 MHIE 403-2G/ VR-EB R 2  PN 10 3~ 400 V 1,1 kW 
COR-3 MHIE 403 EM/ VR R 2  PN 10 1~ 230 V 1,1 kW 
COR-3 MHIE 205-2G/ VR-EB R 2  PN 10 3~ 400 V 1,1 kW 
COR-3 MHIE 205 EM/ VR R 2  PN 10 1~ 230 V 1,1 kW 
COR-2 MHIE 1602-2G/ VR-EB R 3  PN 10 3~ 400 V 2,2 kW 
COR-2 MHIE 803-2G/ VR-EB R 3  PN 10 3~ 400 V 2,2 kW 
COR-2 MHIE 406-2G/ VR-EB R 2  PN 10 3~ 400 V 2,2 kW 
COR-2 MHIE 403-2G/ VR-EB R 2  PN 10 3~ 400 V 1,1 kW 
COR-2 MHIE 403 EM/ VR R 2  PN 10 1~ 230 V 1,1 kW 
COR-2 MHIE 205-2G/ VR-EB R 2  PN 10 3~ 400 V 1,1 kW 
COR-2 MHIE 205 EM/ VR R 2  PN 10 1~ 230 V 1,1 kW