Oventrop UK Ltd - Oventrops Cocon 2 Valves face good prospects
on chilled beams at unions new HQ
Oventrop Cocon 2 double regulating and integral
control valves have been used on 140 chilled beams on the six
storeys of the new headquarters of Prospect, the largest union in
the UK representing professional engineers. The new 2,500 sqm
Prospect House replaces an old warehouse behind the union’s previous
premises in York Road, London SE1, in what was virtually its back
garden.
Meica Services, who were responsible for the mechanical services
design and build, chose Oventrop Cocon 2 multifunction valves for
their compactness, enabling the entire valve assembly to fit within
the active chilled beams which are exposed below flat soffits. Cocon
2 regulating valves control the room temperature by changing the
water flow rate through the beams by means of on/off actuators.
Being a cooling only system at Prospect House, the valves are
installed in chilled water pipework returns from each beam. They are
also used to carry out hydronic balancing of the system as a single
Cocon 2 valve can perform 6 functions: control, regulation,
measurement, isolation, filling and draining.
The beams are unusual in that as well as lighting, they incorporate
smoke detectors on the air inlet side. To gain London Fire Brigade
approval Meica carried out tests to show that any smoke present will
be drawn into the beam and trigger a detector faster than one
outside on the flat soffits. This is the first time the British
Standard waiver has been permitted and smoke detectors accepted
inside chilled beams.
The plant room is on the roof and contains centralised air handling
units with thermal wheels for heat recovery and a high efficiency
chiller. LPHW comes from roof mounted solar panels. Consulting
engineers for the project were Rybka.
Email: sales@oventrop.co.uk
Arundel Jones Associates Ltd
Hill Farm, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333
news@buildingdesign.co.uk
Registered in England and Wales No. 07334149
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