Download PDF version

Indoor air quality and ventilation manufacturing specialist - Nuaire is pleased to announce its latest CPD, which addresses High-Temperature Axial Fans & Variable Speed Drives (VSDs).

This new CPD has been introduced to clearly explain the standard ‘BS EN 12101-3:2002 Smoke and heat control systems-Specification for powered smoke and heat exhaust ventilators’, and advise on compliance.

Various smoke applications

Simon Plummer, Nuaire Axials Divisional Manager and one of the UK’s pioneering fire safety experts, has written the CPD to provide clarification: “Frequency converters have been permitted for use during a fire event since 2015, enabling dual mode fans (those used for both day-to-day ventilation and high-temperature smoke extraction) to be controlled by VSDs, even during fires. Prior to this, the VSD had to be bypassed during a fire event, with the fan running at 100%."

Simon Plummer adds, "However, there remains some confusion in the industry about how high-temperature fans and VSDs can be certified and used for the various smoke applications within buildings. Our new CPD directly addresses this, explaining the standard in detail and the flexibility it offers Consultant and Smoke Designers when it comes to designing solutions.”

High-Temperature Axial Fans and VSDs

In addition to explaining the standard, the CPD covers the test conditions that high-temperature axial fans and VSDs must undergo, before moving on to best practices in high-temperature fan design. The importance of opting for a fan/VSD that has been tested as a package is stressed, along with an explanation of why a VSD “Fire Mode” (smoke clearance function is needed).

As with all Nuaire CPDs, the High-Temperature Axial Fans & VSDs CPD can be delivered free of charge at Nuaire’s head office in Caerphilly, South Wales, online via Teams, or at a customer’s premises. All those attending will gain full CPD credits and certificates.

Download PDF version Download PDF version

In case you missed it

How Does Building Design Impact HVAC Systems, And Vice Versa?
How Does Building Design Impact HVAC Systems, And Vice Versa?

Building design and HVAC are interdependent aspects of creating a comfortable, healthy, energy-efficient, and functional indoor environment. How important is collaboration as archi...

New Mitsubishi Electric HVAC Control System
New Mitsubishi Electric HVAC Control System

Mitsubishi Electric has launched a new user-friendly, touchscreen controller to offer full remote controllability, monitoring and reporting for up to 400 air conditioning units. T...

Carrier Training Academy Opens For UK HVAC Engineers
Carrier Training Academy Opens For UK HVAC Engineers

Carrier Solutions UK has officially opened its state-of-the-art training academy in Stockport, where it will offer industry-renowned education and support for HVAC engineers across...

vfd