Over the years there have been lots of attempts to provide generic information with regard to damper installations. These have come from the old GLC regulations, which were adopted by industry bodies and supported by test houses and trade associations. However, with the publication of BS EN 1366-2 the European standard for the fire testing of dampers (no specific standard existed before) and revisions to the guidance from the UK regulators (Approved Document B - ADB) it has been difficult for manufacturers to provide such generic information.

The method of damper installation is important as it is the interface between the damper and the supporting construction. It plays a significant role on the final result of the test and thus the classification of the damper. Manufacturers products cannot be assumed to perform the same in every installation, more importantly different manufacturers products will have their own performance classification.

The classification states the performance of the fire damper, for the installation method, as a time. This indicates the suitability of the damper in that particular installation method for its Integrity (E) and if available for the specific product, the damper leakage to achieve a Smoke Classification (S). The SmokeShield and CSS ranges, both have E and ES classifications, and the FireShield has E classification, but the performance in time can vary with differing methods of installation. Therefore manufacturers must provide specific data as it represents what has been tested or assessed.

Previously assessments to meet the requirements of BS476 were most common, but these are not easy to come by with regard to the BS EN 1366-2 test methods. It is important to check that your proposed installation method meets one of those described. Guidance is also available in the HVAC document DW145 that outlines the industry standard for the installation of dampers. Regulatory requirements have changed and are changing, use this document along with DW145 to make sure your design and installation meets the current requirements as fire dampers are life safety products.

Swegon Air Management is not able to approve specific installations that vary from those tested and described in this publication. You may seek assessment from bodies such as BRE/LPC or WFR who will require fully dimensioned drawings with material details for your proposed installation, together with any copies of our test reports for the product.

Our products are third party certificated, in addition to full ISO 9001 quality assurance. The notified body check the products to ensure that they are still being manufactured as tested or assessed, that components are traceable back to the fire tests, assessments and product design files. The Loss Prevention Certification Board (LPCB) performs our QA and product audits.

While we have undertaken extensive testing, we continue to carry out tests to reflect industry practices. Supplement test reports are available from the actionair sales office.

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