Smoke Extract Fan

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A skid-mounted Smoke Extract Fan comprising fans, dampers, and controls designed specifically for smoke shaft applications.

Smoke Extract Fan Features & Details

Our Smoke Extract Fan is factory-assembled and tested to all current standards for life-safety systems. Its compact structure reduces plant space requirements on the roof of buildings and cuts down installation and commissioning times significantly.

  • Extract Fans
  • Control System
  • Automatic Transfer Switch (optional)
  • Attenuators (optional)

Download Datasheet

Axial high-temperature fans, manufactured from hot dipped galvanized steel sheets

Main system control panel located on the skid and pre-wired to the fans and dampers

Optional automatic transfer switch module mounted on the common plant skid.

Built-in low-speed daily ventilation mode

Smoke Extract Fans

The fans and motors are rated at 300°C for 2 hours and are fully tested and certified to the requirements of EN12101-3. The fans are mounted in series onto a pre-assembled module using anti-vibration mounts. The fan assembly is mounted onto skids fitted with adjustable feet for mounting on a suitably prepared roof area.

Control System

An integral motor control centre provides the control and monitoring of the extract fans, dampers, doors and stairwell AOVs through the communications network. The operation of the fans is monitored by current sensing so that in the event of fan failure the standby fan will be automatically started.

ATS Switch

Auto changeover of mains and standby power supplies is provided by an optional automatic transfer switch (ATS) module mounted on the common plant skid where required. The ATS is fully compliant to BS EN 8519:2010 with a bypass feature to maintain a fully operational system during maintenance work.

Compliance of Smoke Extract Fan Components

The Smoke Extract Fan is compliant with all relevant standards.

Fans and Inverters
BS EN 12101-3 F300 Smoke and heat control systems Part 3: Specification for powered smoke and heat control ventilators (Fans)
BS EN 61439-2 Low-voltage switchgear and control gear assemblies - Power switchgear and control gear assemblies
BS476 Pt 24 Fire tests on building materials and structures. Method for determination of the fire resistance of ventilation ducts, EN1366 Pt 1 Fire resistance tests for service installations - Part 1: Ventilation ducts
ATS Switch
BS8519 Selection and installation of fire-resistant power and control cable systems for life safety, fire-fighting and other critical applications - code of practice & BS EN 60947-6-1 Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment

Stock Range Extract Skid Specifications

The following table outlines the specifications of our standard stock range fan skids. If you require a custom Extract Skid, please get in touch with us to discuss your requirements.

Air Flow RateRun & Standby - 6.0m3/s from lobby 300PaRun & Standby - 6.0m3/s from lobby 375Pa
Pressure300 Pa375Pa
Footprint2050 L x 1250 W (mm)2332 L x 1670 W (mm)
Power Supply400V 50Hz 3P&N 28A400V 50Hz 3P&N 38A
Nominal Running Current27.5A36.5A
FinishGalvanised SteelGalvanised Steel
Sound Power Level (Fire Mode)Inlet – 110 dB
Outlet – 111 dB
Breakout – 97 dB
Inlet – 112 dB
Outlet – 114 dB
Breakout – 102 dB
Sound Power Level (Daily Ventilation)Inlet – 80 dB
Outlet – 82 dB
Breakout – 72 dB
Inlet – 90 dB
Outlet – 92 dB
Breakout – 83 dB
IP Rating of Control PanelIP55IP55
ConformityFans: EN 12101-3
Controls: BS EN 12101-10
Ductwork: BS EN 12101-7
Fans: EN 12101-3
Controls: BS EN 12101-10
Ductwork: BS EN 12101-7

Technical Drawings

1000ø Extract Skid

630ø Extract Skid

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