DANFOSS - VLT® HVAC Drives Improve Internal Hospital Environment
& Reduce Energy Consumption By 50%
 In order to assist Brighton & Sussex University Hospitals Trust to reduce its
energy consumption, Efficiency Direct Ltd of Shoreham by Sea specified and
managed the installation of dedicated Danfoss VLT® HVAC drives to hospital air
handling equipment.
A trial area was equipped with Danfoss VLT® HVAC Drives; which were connected to
the hospitals’ Building Management System to respond to changes in outside air
temperature, duct pressure and temperature. This provides the versatility and
reliability needed for the challenging requirements of the environment found
within a hospital.
The energy usage figures recorded before, during and after VLT® HVAC drives were
fitted demonstrates the dramatic reduction in electrical consumption. NHS Trust
Energy Manager Dawn Moss said “The Danfoss VLT® drives are part of a series of
Energy Reduction projects being undertaken. The drives have proved to be
reliable, versatile and efficient, and the project has been extended across our
estate.”
The Trust has since ordered a further 88 units for its two major hospitals in
Sussex. The installation has not only improved the hospitals internal
environment in the areas served, but has resulted in a reduction in the
electrical consumption in the plant room of more than 50%. This has been
quantified as saving £48,000; 288 tonnes of CO2 emissions and 533,000 kWh of
electricity per annum.
Facts about Brighton and Sussex University Hospitals
Brighton and Sussex University Hospitals (BSUH) is the regional teaching
hospital trust working across two sites: the Royal Sussex County Hospital in
Brighton and the Princess Royal Hospital in Haywards Heath. (source:
www.bsuh.nhs.uk)
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