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Wilo-Comfort CO/COR Helix V

Pressure boosting system with 2 to 6 parallel-switched, non-self-priming stainless steel high-pressure multistage centrifugal pumps

  • Fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems
  • Pumping of potable water and process water, cooling water, water for fire-fighting or other water mixtures that do not chemically or mechanically attack the materials used and do not contain abrasive or long-fibre constituents
Special features/Product advantages
  • Convenient system with MVI series stainless steel high-pressure multistage centrifugal pumps for all requirements contained in DIN 1988
  • 2-6 parallel-switched vertical MVI and Helix V series high-pressure multistage centrifugal pumps with IEC standard motors (Helix V: efficiency class 1)
  • CC Comfort Control with memory-programmable microcomputer control and graphics-ready touch display, menu-prompted input of operating parameters; on COR systems, fitted with frequency converter for infinitely variable control of the base-load pump
Wilo-Comfort CO/COR Helix V
Technical data

  • Mains connection 3~230 V / 400 V, 50 Hz
  • Fuse A, AC 3 on mains side in conformity with motor power and EVU regulations
  • Fluid temperature max. 60 °C
  • Operating pressure 16 bar
  • Inlet pressure 10 bar
  • Nominal connection diameters R 2 - DN 250
  • Protection class: IP 54
Equipment
  • 2-6 pumps per system
  • Automatic pump control via CC Controller
  • Components in contact with fluid are corrosion resistant
  • Galvanized base frame with height-adjustable vibration damper for insulation against structure-borne noise
  • Pipework made of 1.4571 stainless steel
  • Gear-operated shut-off ball cock/annular shut-off valve on suction and pressure side of every pump
  • Non-return valve, pressure side
  • Diaphragm pressure vessel 8 l, PN16, pressure side
  • Pressure sensor, discharge side
  • Optional pressure gauge (suction side)
  • Pressure gauge (discharge side)
  • Optional low-water cut-out switchgear
Description/Design
  • Base frame: Galvanized and provided with height-adjustable vibration dampers for comprehensive insulation against structure-borne noise; other versions on request
  • Pipework: Complete pipework made of 1.4571 stainless steel, suitable for connection of all commonly used piping materials; the pipework is sized corresponding to the overall hydraulic performance of the pressure boosting system
  • Pumps: 2 to 6 parallel-switched pumps are used from the series MVI 2 to MVI 95; all pump components in contact with fluid are made of 1.4301 stainless steel or 1.4301 stainless steel starting with MVI 16.. made of cast iron; cataphoretic-coated or 1.4408 stainless steel on request
  • Fittings: Each pump is fitted on suction and pressure side with a DVGW-tested, Ni-coated, CuZn gear-operated shut-off ball fitting or annular shut-off valves and a pressure-side DVGW-approved POM non-return valve in a CuZn/1.4408 housing
  • Diaphragm pressure vessel: 8 l/PN 16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws for testing and inspection purposes, with Ni-coated, CuZn shut-off ball cock, with drain and throughflow fitting according to DIN 4807
  • Pressure sensor: 4 to 20 mA, located on the discharge side for activating the central Comfort Controller
  • Pressure display: Suction- and discharge-side pressure gauge (ø 63 mm); Additional digital display of discharge pressure on the alphanumeric touch display on the Comfort Controller.
  • Control device/controller: The system is standard-equipped a CC Comfort Controller; COR additionally with a frequency converter
Materials
  • Impellers, diffusers, stage housing made of 1.4307 stainless steel
  • Pump housing made of cataphoretic-coated EN- GJL 250 cast iron.
  • Shaft made of 1.4057 stainless steel
  • 1.4404 shaft protection sleeve
  • O-ring made of EPDM EP856 (FKM seal on request)
  • Shaft protection sleeve made of 1.4301
Scope of delivery
  • Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
  • Packaging
  • Installation and operating instructions
Wilo-Comfort CO/COR Helix V