PFM 21 1 - Page 16



NEWS
news
Special Air Intake Screens Help Hospital
Maintain HVAC Efficiency
K
een to protect all its HVAC
equipment from airborne
debris and to maintain its
efficiency, the Central Middlesex
Hospital sought a solution for all its
28 locations adjacent to London’s
A40.
RABScreen, the external air intake
screen specialists, together with
distributor GVS Filtration and their client
Bouygues put forward a successful bid
in a competitive tender and the team
then subsequently fully surveyed all the
hospital locations.
As a hospital project, much of the work
had to be completed at weekends, and
there were several problems which
needed to be addressed: ten of the
supply ducts were drawing air from high
level
louvres;
access
required
scaffolding which would make on-going
maintenance very difficult; and internal
duct access was also difficult.
The hospital maintenance team was
looking for a mesh screen that could be
inserted into existing ductwork then
simply
withdrawn
for
future
maintenance. For RABScreen director
Richard Betts, with his 25 years’
experience in the building services
industry, this was not a problem. By
working with one of its partner
companies, AJM Ventilation, an
exceptional ductwork installer, the team
were able to modify the ductwork to
receive new filter boxes. The
RABScreen solution was installed within
the supply filter box to make screen
insertion easier.
Now the local airborne debris created by
London’s A40 and the surrounding
industrial area is kept away from the
disposable filters increasing their
lifespan by as much as 60%. This front
line protection allowed the introduction
of the highly efficient GVS BACTICELL
which sits behind the RABScreen’s
mesh material, the GVS BACTICELL
improves efficiency and copes with high
pressure differentials between changes.
These BACTICELL screens will reduce
replacement costs dramatically with the
next filter change not expected until
August 2019.
Nick Shackleton, Director at GVS
Filtration commented, “It was a great
solution for the customer. All of the AHU
plant is now protected by the washable
16
RABScreen and the long lasting
BACTICELL. AJM Ventilation’s expertise
in ductwork meant that the contract was
fulfilled on time and within budget”.
Further information is available from
RABScreen on 01635 248633 by
emailing info@rabscreen.com or by
visiting the company’s website at
www.rabscreen.com
Reader Reply: 211042

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