Wilo-SiBoost Smart Helix EXCEL

Series description

Design

Highly efficient water-supply unit (non self-priming) ready for connection with 2 to 4 vertically arranged Helix EXCEL stainless steel high-pressure centrifugal pumps switched in parallel; each pump is equipped with an integrated air-cooled, high-efficiency frequency converter and an EC motor, including Smart Controller SCe. Valves and sensors are protected for safe and reliable installation

Application

  • Fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems.
  • Pumping of drinking water, process water, cooling water, fire water (apart from fire-extinguishing 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.

Type key

Example: Wilo-SiBoost-Smart 3 Helix EXCEL 1005
SiBoost System for pressure boosting in the commercial area
SmartControl device, Smart Controller SCe
3Number of single pumps
Helix EXCELPump series
10Rated volume flow [m3/h] of the single pump
05Number of single pump stages

Special features/product advantages

  • Heavy-duty system with Helix EXCEL series stainless steel high-pressure multistage centrifugal pumps with integrated frequency converter from 25 Hz to a maximum 60 Hz
  • High-efficiency EC motor (energy efficiency class IE5 in accordance with IEC 60034-30-2)
  • Pressure-loss optimised overall system with highly efficient pump hydraulics
  • Integrated dry-running detection with automatic deactivation via the motor control electronics
  • Maximum degree of control using the SCe control device with LC display, simple navigation and configuration using rotary knob

Technical data

  • Mains connection 3~400 V ± 10%, 50 Hz; 3~380 V ±10 %, 60 Hz
  • Max. fluid temperature +50 °C (+70 °C optional)
  • Max. ambient temperature 40 °C
  • Operating pressure 16 bar (25 bar optional)
  • Inlet pressure 10 bar
  • Nominal connection diameters on discharge side R 1½" ‐ DN 200
  • Nominal connection diameters on intake side R 1½" - DN 200
  • Speed range 1500-3770 rpm
  • Protection class: IP 54 (SCe control device)
  • Fuse protection on mains side A, AC 3 according to motor power and EVU regulations
  • Approved fluids (other fluids on request):
    • Drinking water and hot water
    • Cooling water
    • Fire water
    Note on 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. System in accordance with DIN 1988 (EN 806)

Equipment/function

  • 2-4 pumps per system of the Helix EXCEL 4 to Helix EXCEL 52 series, with high-efficiency EC motor and variable speed control via integrated frequency converter on each pump
  • Automatic pump control via Smart Controller SCe
  • Parts that come in contact with the fluid are corrosion-resistant
  • Base frame made of galvanised steel, with height-adjustable vibration absorbers for insulation against structure-borne noise
  • Shut-off valve on the suction and pressure sides of each pump
  • Non-return valve on the pressure side of each pump
  • Diaphragm pressure vessel 8 l, PN16, pressure side
  • Pressure sensor, pressure side
  • Pressure gauge, pressure side
  • Removable cover for protection of system components (not for Helix EXCEL 52 series)
  • Optional low-water cut-out switchgear with pressure gauge, suction side

Description/design

  • Base frame: galvanised steel, with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise as well as an integrated lifting device; other versions on request
  • Pipework: complete pipework made of stainless steel, suitable for the connection of all conventional piping materials; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
  • Pumps: 2 to 4 pumps parallel-switched of the Helix EXCEL 4 to Helix EXCEL 52 series. The air-cooled frequency converters mounted on the pump motor enable infinitely variable control between 25 Hz and a maximum of 60 Hz for all pumps of this series. All pump 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: Each pump is fitted on the suction and pressure side with a standard shut-off valve with DVGW approval mark and on the pressure side with a DVGW/KTW-approved non-return valve.
  • Diaphragm pressure vessel: 8 l/PN16 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, located on the discharge side for controlling the central Smart Controller SC
  • Pressure indication: Pressure gauge (ø 63 mm) arranged on the discharge side; additional digital indication of the discharge pressure in the alphanumeric LC display of the Smart Controller SC
  • Switchgear/controller: The system is equipped with a Smart Controller SC as standard
  • Removable covers on the suction side and pressure side: the design of the system guarantees optimal protection of the regulating components and sensors against wire breakage and prevents early wear

Materials

Helix EXCEL 4 to Helix EXCEL 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)
  • Piping made of 1.4301 stainless steel
  • Removable covers made of plastic

Helix EXCEL 22 to Helix EXCEL 52

  • Impellers, guide vanes, stage housing made of stainless steel 1.4307
  • Pump housing of stainless steel 1.4308
  • Shaft of stainless steel 1.4057
  • 1.4404 shaft protection sleeve
  • O-Ring gaskets made of EPDM (FKM gasket on request)
  • Piping made of 1.4301 stainless steel
  • Removable covers made of plastic (not for Helix EXCEL 52)

Scope of delivery

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

Options

Other mains connections on request

Consulting guide

Inlet pressure

The maximum inlet pressure (see Technical data) is to be observed for the system configuration. The maximum permissible inlet pressure is calculated from the maximum operating pressure of the system minus the maximum pump delivery head at Q = 0

Pressure reducer

Fluctuating inlet pressure is compensated by the speed control integrated into each single pump as long as the pressure fluctuation is not greater than the difference between the setpoint pressure value and the zero-delivery head of the single pump at minimum speed. If the pressure fluctuation is greater, a pressure reducing valve must be installed upstream of the system.

Volume flow

Up to 240 m3/h (66 l/s) system configuration according to DIN 1988 (EN 806); with standby pump up to 320 m3/h (88 l/s) in the event of operation of the pump as an additional peak-load unit

Residual-current devices

When installing residual-current-operated protection switches in conjunction with frequency converters, bear in mind that only universal-current-sensitive residual-current-operated protection switches in accordance with DIN/VDE 0664 are to be fitted.

Wilo-WMS low-water cut-out switchgear

The series Helix EXCEL pumps being used are already equipped with an integrated dry-running detection as safety equipment for the pump. The installation of a low-water cut-out switchgear is required if the pressure boosting systems are connected directly to a public mains power supply; this prevents the inlet pressure in the mains supply line from dropping to values below 1.0 bar. Please order directly when ordering the pressure boosting system. The WMS will then be installed in the pressure boosting system, electrically wired and fully tested by Wilo during the final functional test.

Standards/directives

The overall system conforms with the requirements of

  • DIN 1988 Part 5
  • DIN 1988 Part 6* (**)

* The specifications in DIN 1988 (EN 806) and of the water-supply companies are to be observed. Regarding the electrical components, the system conforms with the requirements of

  • VDE 0100 Part 430/Part 540
  • VDE 0110 Part 1/Part 2
  • VDE 0660 Part 101/Part 107 and
  • DIN 40719/IEC 754

Always observe the specifications in DIN 1988 (EN 806) when using and operating the pressure boosting system.(**) That does not apply to fire extinguishing systems in accordance with DIN 14462. Please request these separately.

Duty chart

Duty chart

Downloads

Clean Water

Page format A4
Number of pages 24

PDF (8 MB)

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General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

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Wilo-Control SC-Booster (SC, SC-FC, SCe)

Article Number 2535460
Edition 2013-03
Version number 02
Page format A4
Number of pages 156

PDF (5 MB)

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Wilo-SiBoost Smart (FC) ... Helix V/... Helix VE/... Helix EXCEL

Article Number 2535457
Edition 1508
Version number 03
Page format A4
Number of pages 40

PDF (3 MB)

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Wilo-Helix EXCEL 2-4-6-10-16

Article Number 4152001
Edition 03/13
Version number 01
Page format A4
Number of pages 108

PDF (8 MB)

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Wilo-Helix EXCEL 22-36-52

Article Number 4152003
Edition 03/15
Version number 02
Page format A4
Number of pages 108

PDF (8 MB)

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