Economy CO/T-1 Helix V 412/EC

Compact pressure-boosting system, with break tank for system separation (drinking water / drinking water or drinking water / non-drinking water) in accordance with DIN 1988 and DIN EN 1717 (fluid category 5) for indirect connection. Consisting of break tank, float valve, float switch as dry-running protection signal transmitter and a non-self-priming, vertical stainless steel high-pressure multistage centrifugal pump in glanded version. Ready for connection with pipework mounted on PE baseplate, including control unit with all necessary measuring and control devices.

For drinking water separation as well as 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-extinguishing systems in accordance with DIN 14462 and with the approval of the local fire protection 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

• Drinking water approval of the pump for all parts that come in contact with the fluid (EPDM version)
• Highly efficient pump hydraulics of the Helix V series in conjunction with IEC standard motors
• Integrated low-water detection with automatic deactivation via dry-running protection relay
• Bidirectional mechanical seal for pumps
• Flexible lantern design permits direct access to the mechanical seal
• Parts that come in contact with the fluid are corrosion-resistant
• Break tank made of polyethylene (PE) with service overflow (HT) and overflow slot according to DIN EN 13077 (can be optionally extended with an

overflow box including dirt guard)

• Calmed inlet valve, mounted in a twist-proof manner at the factory
• Pressure-loss optimised hydraulics of the entire system
• 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 polyethylene (PE)
• Shut-off valve on the discharge side
• Non-return valve on the suction side
• 8 litre diaphragm pressure vessel, PN 16 including throughflow fitting in accordance with DIN 4807, discharge side
• Pressure sensor, 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 constant speed 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)

• Flexible connection pipes or compensators
• Diaphragm expansion tank
• Overflow box incl. dirt guard

Standards followed

• Codes of practice for drinking water installations (TRWI) DIN 1988 (EN806)
• 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)