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| Mechanical suppliers | |
| AHUs: | Master Air |
| Boilers: | Broag |
| Ceiling Diffusers: | Ventac |
| Chillers: | Coolair, Clivet |
| Control valves: | Honeywell |
| Computer room air conditioning: | Airedale, Coolair |
| Dampers: | Season Control |
| DX systems: | Daikin |
| Extract fans: | Dan Chambers |
| Fan coil units: | Finn Heat, Diffusion |
| Fire hose reels: | Angus Fire |
| Floor grilles: | Ventac |
| Flues: | Insulated Chimney Ltd |
| Heat exchangers: | BSS |
| Heat pump: | Clivet |
| Hot water calorifiers: | Hevac, State |
| Louvres: | ASVS |
| Perimeter heating: | Harland Johnston |
| Pumps: | Wilo |
| Pressurisation: | BSS |
| Radiant Panels: | Harland Johnston |
| Radiators: | Runtal |
| Smoke control louvres : | Colt |
| Strainers: | BSS |
| Tanks: | Kilarney Plastics |
| Toilet extract: | Dan Chambers |
| Underfloor heating: | VCS, WIRSBO |
| Valves: | BSS |
| Water boosters: | Wilo |
| Electrical suppliers | |
| Controls: | Cylon, Honeywell |
| CCTV: | Screenguard |
| Cable management: | Electrofast, Marshall Tufflex |
| Communications: | Kedington, Bridgecom |
| Electrical accessories: | MEM |
| Fire alarm/detection: | Cooper, Menvier, Transmould |
| Floor boxes: | Power Plan |
| Lifts: | Thyssen |
| Lighting controls: | Delmatic |
| Luminaries: | Concord, Evolution |
| LV switchgear: | Anord Switchgear |
| Motor control centres: | TR Controls |
| Power busbar: | Power Alphatrak |
| Specifications | |
| Engineering data | |
| Gross floor area: | 11 170 m2 |
| Plant rooms: | 200 m2 |
| Offices: | 7801 m2 |
| Computer suite: | 104 m2 |
| Amenity & dining: | 208 m2 |
| Atrium: | 550 m2 |
| Contract details | |
| Tender date: | May 1998 |
| Tender system: | Competitive |
| Form of contract: | Modified GDLA |
| Contract period: | 16 months |
| NES used: | Yes |
| Design conditions | |
| 1989 yearly weather Data | |
| Winter | |
| Offices, meeting rooms, restaurant, recreation: | 210C |
| Archives, atrium public areas: | 180C |
| Library: | 200C |
| Atrium desk area: | 210C |
| Toilet areas: | 180C |
| Summer | |
| Open-plan offices, and other open-plan naturally ventilated areas: | <260C db not more than 2.5% working hours (65 h/y). |
| Maximum peak temperature: | 27.50C |
| Areas provided with cooling: | 220C ±20C |
| Council chamber: | 220C ±20C |
| Computer room: | 220C ±20C |
| U Values (W/m2k) | |
| Walls: | 0.44 |
| Floor: | 0.35 |
| Roof: | 0.26 |
| South, east and west glazing: | 1.7 |
| North glazing: | 1.9 |
| Atrium glass wall: | 5.1 |
| Structural details | |
| Slab thickness: | varies with profile |
| Clear floor void: | 300 mm (most areas) |
| Computer room floor void: | 500 mm |
| Floor to ceiling | |
| Central office area: | 2.7 m |
| Near windows: | 3.1 m |
| Occupancy | |
| Offices: | 1 person/11 m2 |
| Meeting rooms: | 1 person/3 m2 |
| Noise levels | |
| Offices: | NR 35-40 |
| Toilets & circulation: | NR 45 |
| Target energy use | |
| Total : | 104 kWh/m2/y |
| BREEAM assessment: | No |
| Loads | |
| Heating load: | 600 kW |
| Installed heating capacity: | 900 kW (300 kW standby) |
| Installed cooling capacity: | 33 kW |
| Load breakdown | |
| Equipment: | 15 W/m2 |
| Lighting: | 16 W/m2 (with 65% diversity) |
| Installed lighting: | 15 W/m2 |
| Distribution Circuits | |
| LTHW: | 820C flow, 710C return |
| Underfloor: | 550C flow, 450C return |
| DHWS: | 600C flow, 500C return |
| Constant temp: | 820C flow, 710C return |
| Electrical Supply | |
| Transformers: | None (LV supply) |
| UPS: | Small local units at critical equipment |
| Coolant: | R407c |
| Lighting | |
| Types: | Primarily compact fluorescent uplighters and recessed downlighters |
| Lighting load: | 157 kW |
| Lux levels | |
| Office: | 500 lux |
| Conference rooms: | 500 lux |
| Kitchen: | 300 lux |
| Computer: | 300 lux |
| Toilets, stairs and circulation: | 150 lux |
| Costs | |
| Costs (I£millions) | |
| Total cost: | £12.5 million |
| Building services total | |
| Mechanical: | £0.9 million |
| Electrical: | £1.4 million (incl. data cabling) |
| Facade: | £2.5 million |
| Total net cost: | £1345/m2 |
| Note: Costs increased considerably in Ireland since date of tender. | |
| Mechanical costs (£000/m2) | |
| Cold Water Services: | £3.5 |
| Hot Water Services: | £2.5 |
| Heating Services: | £31.9 |
| Cooling Services: | £3.2 |
| Ventilation: | £8.5 |
| Drainage: | £1.89 |
| Electrical costs (£000/m2) | |
| Meters & switchgear: | £11.0 |
| Lighting: | £50.0 |
| Power: | £3.6 (excl. fit out) |
| Controls: | £3.7 |
| Fire alarms & detection: | £8.2 |
| Security: | £6.3 |
| Telephone & data: | £17.5 |
| Earthing, bonding and lightning protection: | £0.93 |
| Lifts: | £10.7 |