Finding the right solution
Munters began the upgrade with an initial site survey to calculate power output and airflow of the existing AHU.

"We began by analysing power consumption over the course of 7 days" says David Bennett, Service Sales Manager at Munters. "This enabled us to understand more about how the AHU was running, and choose a solution accordingly."

Replacing old fans with a new FanGrid
Working with ebm-papst, Munters replaced the fans in the AHU with a new FanGrid made up of five high efficiency EC centrifugal plug fans. As well as reducing energy consumption, these fans have reduced maintenance costs for the AHU’s, provided better controllability and reduced noise. The upgrade was carried out with minimal disruption to the operation of the airport.

Result? Substantial savings!
The project has surpassed requirements, with power consumption reducing from 24 kW to 6.4 kW. This is predicted to save the airport over £11,000 per year, with a return on investment of 19 months.


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There are many ways we can help you optimise your existing equiment. For further information on Munters' Service and energy optimisation options, please visit
Munters Global Services