Taking the long view

22 May, 2006
The building services industry has never been very good at designing for operation and maintenance. Now the latest edition of the Building Regulations means it has no choice, says MALCOLM LINSLEY.
Sophisticated monitoring of emergency lighting using an integrated system from TridonicAtco will reduce maintenance costs at St Mary’s NHS Treatment Centre in Portsmouth. It also achieves full compliance with the new automatic-testing standard EN 62034. It is believed to be the only self-testing system for emergency lighting that provides full compliance with this standard and obviates the need for visual tests.

Replacing R22

22 May, 2006
The Isceon 9 series of direct replacement refrigerants for R22 is available in the UK through IDS Refrigeration following its appointment as UK authorised distributor by DuPont. This refrigerant is 9% more energy efficient than R22.
Nearly 200 000 m2 of multi-services chilled beams (MSCBs) have been supplied by Trox for office refurbishment projects since production started in 2000. Recently renovated buildings in London include the Empress State Building, Riverside House and the Ministry of Defence. These three projects alone include over 35 km of MSCBs.
New boilers and water-heating equipment supplied by Hamworthy Heating for Stowmarket Leisure Centre will provide heating and hot water for the complex, which is used by 520 000 people a year.
Reznor gas-fire unit heaters installed as part of the refurbished of the warehouse, production and distribution centre of H. C. Slingsby Plc in Shipley deliver temperature-controlled warm air between the racking without impeding the manoeuvrability of fork-lift trucks and pickers.
LEE BENSLEY explores the issues surrounding the maintenance of lighting systems, including emergency lighting.
Air-handling units on each floor of the 16-storey AA headquarters in Basingstoke have been replaced by Specialist Site Services with new units from VES. The original AHUs on each floor provided heating and cooling, with fresh air bled from a central-station air handler in a roof-top plantroom. The building was constructed in the early 1970s.
Dalkia has won a contract to provide mechanical and electrical maintenance to nearly 30 Crown and County Court buildings for Her Majesty’s Court Service in the East Midlands.
The cost of heating a Roman Catholic church in Manchester for a typical service has been reduced to less than £10 following the replacement of natural-convection heaters with 16 fully modulating, gas-powered fanned-flue heaters convection heaters from Rinnai. St John Bosco Church has a volume of about 5500 m3 and is now served by 16 heaters with an output of 10.2 kW each.
A total of 27 evaporative coolers have been installed in the picking and packing halls of Redcats (UK) to reduce excessively high temperatures in the summer. They provide the 240 employees in the two halls of this mail-order division of French-based Pinault-Printemps-Redout with a more comfortable working environment.
Conditions in the swimming pool of South Moorlands Leisure Centre in Staffordshire have been transformed following the installation of a heat-recovery air-handling unit from Calorex Heat Pumps. Before the overhaul of the existing ventilation system, the pool hall suffered condensation and damp problems, resulting in rotting windows and doors as well as unpleasant conditions for swimmers and staff.
With recent refurbishment and additional buildings added to the public areas of Glenstal Abbey in County Limerick demanding an overhaul of the existing heating equipment, York has provided a heat pump as part of a geothermal system.
TREVOR DANN discusses the issues surrounding replacing R22 in chillers to enable them to continue to be used as this refrigerant becomes increasingly unavailable.
It took just a week to install air conditioning for six suites of luxury rooms in Dunkerley’s, a popular Grade 2 listed hotel and restaurant in Deal, using Toshiba’s R410A digital Inverter Split System. The equipment was installed by A1 Refrigeration & Air Conditioning to improve comfort in this hotel, which is sited on an exposed corner, so traffic noise precludes the opening of windows. It faces the Sun for much of the day and catches the wind in winter. Heat-pump air conditioning is providing an ideal solution and demonstrating the potential for providing air conditioning for older and historically significant buildings.
Swimming pool
A new heating system from Nordair/Niche now enables Claire’s Court School in Maidenhead to use its swimming pool all year round, maintaining its competitive edge against local rivals.
Maintenance should be a key element of any energy management strategy — but often is not. SIMON YEATES explains the benefits of taking a more holistic approach
The progressive replacement of building-management systems at Royal Preston Hospital is making possible the effective implementation of the energy-management policy of a site with an energy bill of £3.4 million.
Maintenance should be geared towards keeping a business or operation running, which is not the same as caring for assets and preventing failure. PADDY HASTINGS explains the issues.
Gas-fired CHP has been installed as art of the refurbishment of the boiler house serving sheltered accommodation in Bradford. Shuttleworth House is run by Bradford Community Housing Trust. It is around 30 years old and consists of 43 self-contained flats, a communal lounge, dining room and laundry room.
Saltwell Towers
As part of the £10 million restoration of Saltwell Park for Gateshead Council, Hadrian Air Conditioning & Refrigeration has installed a Daikin VRV heat-recovery system supplied by Space Airconditioning.

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