CO-1 Helix V 418/EC

Compact pressure-boosting system, for direct or indirect connection. Consisting of a non-self-priming, vertical stainless steel high-pressure multistage centrifugal pump in glanded version. Ready for connection with stainless steel pipework, mounted on a base frame, including control device with all necessary measurement and adjustment equipment.

For fully automatic water supply and pressure boosting in residential­, office­ and administrative buildings, hotels, hospitals, department stores (systems with a standby pump are to be provided for this purpose within the scope of DIN 1988 and DIN EN 806) as well as in industrial systems.

For pumping drinking water, process water, cooling water, firefighting 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.

Special features/product benefits

• WRAS/ACS approval of the pump for all parts that come in contact with the fluid (EPDM version)
• High-efficiency pump hydraulics of the Helix V series in connection with IE3 standard motor, including 0.75 kW and larger (optional for smaller motor power)
• Bidirectional mechanical seals in the pumps for easy maintenance
• Flexible lantern design permits direct access to the mechanical seal
• The spacer coupling enables the mechanical seal to be replaced without dismantling the motor (from 7.5 kW)
• Hydraulics of entire system are pressure-loss optimised
• Components that come in contact with the fluid are corrosion-resistant
• Easy commissioning and operation with the Easy Controller
• Factory testing and presetting to optimum working range

Equipment/function

• Stainless steel high-pressure multistage centrifugal pump of the Helix V series
• Base frame made of electrolytically galvanised steel, with height-adjustable oscillation absorbers for insulation against structure-borne noise
• Shut-off valve on the discharge side
• Non-return valve on the discharge side
• 8 litre diaphragm pressure vessel, PN 16 including throughflow fitting in accordance with DIN 4807, discharge side
• Pressure sensor (4 — 20 mA), discharge side
• Pressure gauge, discharge side
• EC-control with IP54 plastic housing, consisting of an internal power supply unit, microprocessor, analogue and digital input and output modules

Operation/display

• Fully electronic Easy Controller with internal power supply unit, microprocessor, analogue and digital inputs and outputs for controlling and linking speed-controlled single pumps
• Factory-preset parameters for easy commissioning/start
• Adjustment of the setpoint, operating parameters and acknowledgement of the fault messages thanks to Green Button Technology
• LCD display (backlit) for displaying the operating data, the controller parameters, the operating status of the pump, the actual pressure, the error messages and the history log
• LEDs for displaying the system status (operation/fault/low water/overpressure)
• Lockable main switch
• Menu navigation with symbols
• Locking the parameter settings
• Operation can be selected with/without standby pump
• Elapsed time indicator for each pump
• Elapsed time indicator for the whole system
• Mains On/Off counter for each system
• Fault log for the last 9 faults

Recommended accessories (to be ordered separately)

• Optional WMS low-water cut-out switchgear kit
• Flexible connection pipes or compensators
• Break tank for system separation
• Diaphragm pressure vessel

Standards followed

• Codes of practice for drinking water installations — DIN 1988 (EN 806)
• Diaphragm pressure vessel/diaphragm expansion tank DIN 4807
• Electronic equipment for use in power installations EN 50178
• Electrical equipment of machines EN 60204-1
• Safety of household and similar electrical appliances EN 60335-1
• Low-voltage switchgear and controlgear assemblies EN 60439-1/61439-1
• EMC — Interference immunity for industrial environments EN 61000-6-2
• EMC — Interference emission for residential, commercial and light-industrial environments (EN 61000-6-3)