External Twin Direct and Belt Drive Roof Fans (NALTRF)

External ducted twin fan unit ideal for a wide range of applications domestic, commercial or industrial with performance up to 5.5m3/s.

Please note that this product can no longer be sold within the EU.

Tel: +442920858484
Email: Email Us

After Sales Support
Tel: +442920858400
Email: Email Us

Robust unit manufactured from high grade corrosive resistant aluzinc providing a hard wearing solution on site.

Features & Benefits:

  • High efficiency – Forward curved centrifugal impellor
  • Duty share – All fans include integral duty share (up to and including size 15), no requirement for separate control panel
  • Wide range of ancillaries – Speed controls, silencers,AVs and flexi connectors
  • Wide choice  - Choice of 16 models with 2 configurations – in line with circular or rectangular spigots
  • 1 year warranty - Peace of mind

Roof mounted twin fan unit for external use, with a high efficiency forward curved centrifugal impeller, sensors fitted in each scroll monitor air flow, detect and signal flow failure. Direct drive motors fitted with thermal protection and manufactured to BS5000. Class B insulation and sealed for life bearings. Air is discharged into a common outlet plenum chamber through separate shutter system which prevents blow back through the standby fan. Unit casing is manufactured from Aluzinc, the underside of the cover which encloses the inlet chamber is acoustically lined.

Fans are suitable for operation in ambient temperatures up to 60°C.  All units are suitable for internal and external use and may be installed up to a maximum angle of 5°.  (Care must be taken to ensure the back draught dampers operate correctly).

Note: fan sizes 1 - 15 are supplied with controls. Fan sizes 16-24 are not supplied with controls - refer to I&M manual.

  • Toilets - small and large
  • Small and large offices
  • Supermarkets
  • Plant room - Note: Fan sizes 1 - 15 are supplied with controls. Fan sizes 16-24 are not supplied with controls
  • Flexible connectors
  • Silencers - long, long podded, standard and standard podded
  • Anti-vibration mounts
  • Speed controls (direct drive only)