Wilo-Economy CO-1 Helix V.../EC

High-efficiency, water-supply unit ready for connection. With vertical stainless steel high-pressure multistage centrifugal pump in glanded version, incl. EC controller (Easy Controller).

• Fully automatic water supply and pressure boosting in inlet mode, either from the public water supply network or from a tank, for domestic, commercial, industrial and municipal applications (e.g. residential, office, administration buildings, hotels, hospitals, trades, industry, water supply companies).
• Pumping of drinking water and process water, cooling water, fire water (apart from fire-fighting 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 pump of the Helix V series with IE3 standard motor, including 0.75 kW and larger (optional for smaller motor power)
• Components that come in contact with the fluid are corrosion-resistant
• Base frame made of galvanised steel, with height-adjustable oscillation absorbers for insulation against structure-borne noise
• Shut-off valve, discharge side
• Non-return valve, discharge side
• Diaphragm pressure vessel 8 l, PN 16, discharge side
• Pressure transducer, discharge side
• Pressure gauge, discharge side
• Optionally with low-water cut-out switchgear (WMS) with pressure gauge, suction side
• EC-control with IP54 plastic housing, consisting of an internal power supply unit, microprocessor, analogue and digital input and output modules

• Mains connection 3~230/400 V ±10 %, 50 Hz (other versions on request)
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature of 40 °C
• Operating pressure 16 bar
• Inlet pressure 10 bar
• Switching pressure ratings 6/10/16 bar
• Nominal connection diameters on the discharge side Rp 1 ¼" - DN 80
• Nominal connection diameters on the inlet side (DN32) Rp 1 ¼"- DN 80
• Rated speed 2850 rpm
• Protection class IP54
• Switching capacity P2 max. at max. 10 A = 4 kW (for > 4-kW downstream electromechanical power section)
• Fuse protection on mains side AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request): Note regarding fluids: Approved fluids are generally waters which do not attack the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
  • Pure water without settling sediments
  • Process water, cold water, cooling water and rainwater
  • Drinking water
  • Firefighting water

Helix V 4 to V 16

• Impellers, guide vanes, stage housing made of stainless steel 1.4307
• Pump housing of stainless steel 1.4301
• Shaft of stainless steel 1.4057
• 1.4404 shaft protection sleeve
• O-ring gaskets made of EPDM (FKM gasket on request)
• Pipework made of 1.4571 stainless steel

• Base frame: galvanised steel, with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise; other versions on request
• Pipework: complete pipework made of stainless steel, suitable for the connection of all piping materials used; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 1 pump of the Helix V 4 to Helix V 52 series; all parts which come into contact with the fluid are made of stainless steel; other versions on request. KTW/WRAS/ACS approval for all parts that come in contact with the fluid.
• Valves: the pump is fitted on the pressure side with a shut-off device with DVGW approval mark or a shut-off valve with DVGW approval mark and on the pressure side with a KTW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN 16 arranged on the discharge side with a diaphragm made of butyl rubber, with DVGW/KTW approval, completely safe in accordance with food safety laws, for testing and inspection purposes, with a shut-off ball cock with drain and throughflow fitting with DVGW/KTW approval in accordance with DIN 4807
• Pressure sensor: 4 to 20 mA, arranged on the discharge side for controlling the central CE+ controller
• Pressure indication: pressure gauge (ø 63 mm) arranged on the discharge side; additional digital indication of the discharge pressure on the alphanumeric touchscreen on the Comfort Controller
• Control device/controller: the system is standard-equipped with a CE+ controller

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

Other mains connections on request

Low-water cut-out switchgear

The Easy Control is designed to be connected to low-water cut-out switchgear sensors, such as pressure switches or float switches. As with these sensors, which are normally positioned on the inlet side, this unit can also be positioned on the discharge side. The contacts of the required sensors must be wired to the line-up terminals in the control device. The low-water cut-out switchgear sensor must be ordered separately.

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.

Pressure reducer

Excessively high or a heavily fluctuating inlet pressure will require the installation of a pressure reducer to maintain a constant minimum inlet pressure level. Permitted inlet pressure fluctuation max. 1.0 bar

Only for fire protection systems

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

This does not apply to fire-fighting 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.

• Mains connection 3~230/400 V ±10 %, 50 Hz (other versions on request)
• Max. fluid temperature 50 °C (70 °C optional)
• Max. ambient temperature of 40 °C
• Operating pressure 16 bar
• Inlet pressure 10 bar
• Switching pressure ratings 6/10/16 bar
• Nominal connection diameters on the discharge side Rp 1 ¼" - DN 80
• Nominal connection diameters on the inlet side (DN32) Rp 1 ¼"- DN 80
• Rated speed 2850 rpm
• Protection class IP54
• Switching capacity P2 max. at max. 10 A = 4 kW (for > 4-kW downstream electromechanical power section)
• Fuse protection on mains side AC 3 according to motor power and EVU regulations
• Approved fluids (other fluids on request): Note regarding fluids: Approved fluids are generally waters which do not attack the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
  • Pure water without settling sediments
  • Process water, cold water, cooling water and rainwater
  • Drinking water
  • Firefighting water

Helix V 4 to V 16

• Impellers, guide vanes, stage housing made of stainless steel 1.4307
• Pump housing of stainless steel 1.4301
• Shaft of stainless steel 1.4057
• 1.4404 shaft protection sleeve
• O-ring gaskets made of EPDM (FKM gasket on request)
• Pipework made of 1.4571 stainless steel

• Base frame: galvanised steel, with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise; other versions on request
• Pipework: complete pipework made of stainless steel, suitable for the connection of all piping materials used; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
• Pumps: 1 pump of the Helix V 4 to Helix V 52 series; all parts which come into contact with the fluid are made of stainless steel; other versions on request. KTW/WRAS/ACS approval for all parts that come in contact with the fluid.
• Valves: the pump is fitted on the pressure side with a shut-off device with DVGW approval mark or a shut-off valve with DVGW approval mark and on the pressure side with a KTW-approved non-return valve
• Diaphragm pressure vessel: 8 l/PN 16 arranged on the discharge side with a diaphragm made of butyl rubber, with DVGW/KTW approval, completely safe in accordance with food safety laws, for testing and inspection purposes, with a shut-off ball cock with drain and throughflow fitting with DVGW/KTW approval in accordance with DIN 4807
• Pressure sensor: 4 to 20 mA, arranged on the discharge side for controlling the central CE+ controller
• Pressure indication: pressure gauge (ø 63 mm) arranged on the discharge side; additional digital indication of the discharge pressure on the alphanumeric touchscreen on the Comfort Controller
• Control device/controller: the system is standard-equipped with a CE+ controller

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

Other mains connections on request

Low-water cut-out switchgear

The Easy Control is designed to be connected to low-water cut-out switchgear sensors, such as pressure switches or float switches. As with these sensors, which are normally positioned on the inlet side, this unit can also be positioned on the discharge side. The contacts of the required sensors must be wired to the line-up terminals in the control device. The low-water cut-out switchgear sensor must be ordered separately.

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.

Pressure reducer

Excessively high or a heavily fluctuating inlet pressure will require the installation of a pressure reducer to maintain a constant minimum inlet pressure level. Permitted inlet pressure fluctuation max. 1.0 bar

Only for fire protection systems

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

This does not apply to fire-fighting 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.