A Sound Investment

By Oliver on January 3rd, 2012

Highline 270ec Fan Coil Independent Acoustic Testing
(In accordance with BS 4856 part 4:1997 and BS 4196 part 1:1991)

Diffusion’s Highline 270 range of waterside control ceiling void mounted fan coils having been supplied on numerous projects since 2008 now form a substantial cornerstone for the business, combining the success of this product with Diffusions commitment to provide the most accurate and valuable information on all its products made the decision to undertake independent acoustic testing of the Highline 270 range was an obvious one.

Employing the services of Sound Research Laboratories (SRL Technical Services Ltd) at their UKAS accredited laboratories in Suffolk; all models within the Highline 270 range, covering volumetric air flow rates from 60 ls-1 to 700 ls-1, have now been tested at external static pressures from 10Pa to 50Pa.
Installations and measurement procedures for the testing were conducted in accordance with BS 4856: Part 4: 1997, (Determination of Sound Power Levels of Fan Coil Units, Unit Heaters and Unit Coolers using Reverberation Rooms), with measurements being taken to BS 4196: Part 1:1991, (Sound power levels of noise sources. Precision methods for determination of sound power levels for broad-band sources in reverberation rooms).

The independently established Inlet and Case radiated SWL’s and Discharge In-duct SWL’s can now be provided as part of our technical submittal, affording confidence in the accuracy of data required when any acoustic analysis or assessment is being undertaken.

Furthermore by utilising Diffusion’s own acoustic test rooms we offer the facility to set-up and test for individual project configurations; thus providing more specific acoustic data for individual NR modelling assessment.