Helix2.0-VE 204-1/16/E/S/3

Non-self-priming, high-pressure multistage centrifugal pump in vertical design with in-line connection, equipped with electronically controlled EC motor with energy efficiency class IE5 according to IEC 60034-30-2.

The pump and motor shafts are connected via split coupling. A special lantern ball bearing ensures optimum admission of axial thrusts. Special, permanently attached lifting eyes enable easy pump installation.

The pump is suitable for the water supply, water distribution and pressure boosting, for industrial circulation systems, process water, closed cooling circuits and heating applications. It can also be used in washing systems as well as for irrigation.

Control modes:

• Constant speed n-c: manually with the green button or using an external signal
• Constant pressure p-c, constant differential pressure ∆p-c, variable pressure p-v, variable differential pressure ∆p-v: Pressure control via sensor, setpoint configuration with the green button or using the external signal
• PID control: Other constant control variables (temperature, volume flow, pressure etc.) with sensor, setpoint configuration with the green button or using the external signal

The electronic module provides various functions:

• Maximum pressure for limit detection
• Minimum pressure for limit detection
• Low-water detection through suction sensor
• Zero-flow test (open circuit)
• No-Flow Stop (closed circuit)
• Dry-running detection
• Calculation of the volume flow with the help of a differential pressure sensor
• Pump kick
• Error and warning codes
• Overload protection
• Slot for Wilo CIF module PLR, LON, BACnet MS/TP, Modbus RTU, CANopen, Ethernet Multi-protocol (Modbus TCP, BACnet/IP) for connection to the building automation
• A green LED indicates pump status
• A blue LED indicates that the pump is controlled externally via an interface
• Access lock

Analogue input:

• IN (AI 1): Input, sensor signal 4–20 mA, 0–10 V, 0–20 mA or 2–10 V
• IN (AI 2): Input, setpoint 0–20 mA, 0–10 V, 4–20 mA or 2–10 V

Digital input IN (DI 1):

• External OFF
• Low-water detection due to binary input

Dual-pump management (two single pumps)

• Main/standby operation
• Pump replacement in main/standby operation after 24 hours or automatic fault-actuated switchover
• Wired connection via Wilo Net

Special features/Product advantages

• IE5 EC motor and integrated frequency converter in combination with Helix high efficiency hydraulics
• 2" LCD colour display, Wilo Green Button Technology and soft button with back function. The well-arranged pump menu allows the pumps to be conveniently set up.
• Analogue and digital interface and CIF module
• Intelligent control with different control modes including integrated dual-pump management
• Laser-welded 2D/3D hydraulics designed for efficient operation and optimised flow and degassing
• Corrosion-resistant impellers, guide vanes and stage housings
• Hydraulics with volume flow and degassing optimisation
• Pump housing optimised for volume flow and NPSH
• Easy-maintenance design
• Drinking water approval for pumps with parts that come in contact with the fluid made of stainless steel (EPDM version)

Scope of delivery

• Helix2.0-VE high-pressure multistage centrifugal pump
• Installation and operating instructions
• Helix2.0-VE 2 – 16 (PN 16 version with oval flange): Stainless steel counter flanges with the corresponding screws, nuts and gaskets

Design notes

• The Helix2.0-VE series is equipped with a mechanical seal (X-seal) in cartridge design and a standard gasket for easy maintenance or with standard mechanical seal depending on pump definition
• For pump versions PN 16 and PN 25, round counter flanges in cast iron or stainless steel, screws, nuts and gaskets are available as accessories.
• The spacer coupling enables the mechanical seal to be replaced without removing the motors (from 5.5 kW and higher).
• Optional plug-in Wilo CIF modules PLR, LON, BACnet MS/TP, Modbus RTU, CANopen, Ethernet Multi-protocol (Modbus TCP, BACnet/IP) for connection to the building automation
• Optional connection for M12 RJ45 CIF Ethernet
• Sensors are available as accessories: Differential pressure set 4–20 mA and relative pressure set 4–20 mA
• Bypass sets are available as accessories