The Fan coil units are linked to the Crestron room control touchscreens through the BMS ( Building Management System ) which controls the lighting music and air-conditioning to each room ( to the occupied levels ) and floor .
The smoke extract and fresh air extracts are coupled into one riser to minimise duct space required . Make-up air is provided by pumping air into the lift shaft which is then directed into each office area using the lift lobby ceiling as a plenum . Staircases are all pressurised on
separate systems for the parking levels and the office levels due to the geometry of the building .
Domestic Water installation Water is stored in the basement in booster tanks and pumped to the roof by means of a twin pump system . The building has sufficient water storage for 24 hours of water which is housed within the sectional steel water tank , a total of 22,000 litres .
The bathrooms located on each level within the central core of the building make use of Grohe concealed cisterns and urinal sensors as well as Hansgrohe brassware .
Hot water in the building is generated through an air to water heat pump coupled to a 3,500 litre hot water storage tank . This is as per the Greenstar office portable water and sewage calculator for category 3 fittings , and allows all showers , of which there are 8 , to be run for a full hour as well as providing 500 litres to the kitchen . Hot and cold water is also provided to all tea kitchens as per the tenants layouts and metered to control the water usage .
Structural Challenges The geometry of the sloping brickwork required an unconventional solution to ensure that the angled brickwork is structurally stable . The structural solution was a series of dummy concrete columns and brickwork nibs that follow the line of the façade .
These mock columns formed the structural elements to which the brickwork was then secured and the tops of the walls were tied back into the soffits . This solution resulted in time and costs savings as a result of not casting all the sloping elements in concrete .
314 85 Grayston