Specially designed Actionair Fan Coil Units will help to provide
an air conditioned environment for major new headquarters building
for
Peptide Therapeutics in Cambridge. Actionair developed special
versions of the company's Hydropac Waterside Control Fan Coil
models to meet a requirement for units to follow the
line of the pitched roof on the administration block.
The two storey 1500m2
administration block and the adjoining 1600m2 research facility
are both served by a 750m2 plantroom which incorporates extract
ventilation equipment, air handling plant and modular gas fired
boilers with a total rating of 1500kW. Packaged chillers to serve
the air handling plant and Actionair fan coils are located in an
external compound. Total cooling capacity is 800kW. Most of the
Actionair Fan Coil Units supplied to the project are located in
the ceiling voids in the administration block, although some are
used in the research and development facility. At the corners of
the top floor of the administration block it was required that
the Fan Coil Units should follow the line of the sloping roof.
Special units were engineered in such a way that they could lie
parallel with the roof line, each connected by a section of acoustic
flexible ducting to an insulated diffuser plenum for discharge
of conditioned air into the room space below.
Care had to be taken
throughout design, manufacture and installation that the condensate
trays below the Actionair units did not follow the roof line, but
remained at right angles to the true vertical to avoid any possibility
of dripping condensate.
Low Noise Levels
Actionair fan coil units operate at extremely low noise levels and are capable
of accurate presetting of output to minimise on-site commissioning time.
All Actionair models feature a nine speed tapped transformer plus pure
sine wave adjustment for truly accurate commissioning. Used in conjunction
with the three speed fan selector switch this effectively provides for
twenty seven different fixed output options, enabling a high degree of
accuracy to be achieved in matching individual unit performance to project
requirements on an area-by-area, room-by-room basis.The
Actionair units installed within the ceiling voids at Peptide Therapeutics
have
been supplied complete with all necessary controls and are pre-wired
for waterside control on a master and slave principle. Architects
for the project were Feilden & Mawson, M & E consultants
were Silcock Dawson & Partners and mechanical and electrical
contractors were Drake & Scull. The Project Manager was Hannah
Reed and Associates.
