Architect and Builder August/September 2018 | Page 47

FIRST FLOOR PLAN
to the Fan Coil units located on each floor, as well
as the outdoor air handling units and the Atrium
air handling units. The cooling towers are supplied
with grey water from Century City treated effluent.
The lower basement parking level is mechanical
ventilated, with the extraction system doubling up
in case of fire. The basement extraction system
is installed with variable speed drives and CO
sensors to optimise energy usage. The upper
basement parking level is naturally ventilated.
Outside air is supplied at 150% of the National
Discovery Sable Park
Building Regulations requirement, in order to meet
the 5-star Green Star requirements. The air is pre-
cooled to 22°C and supplied from air handling units
located at roof level to individual fan coil units. The
outdoor air handling units are CO2 controlled. The
ablution facilities located in the ‘concrete cube’ are
mechanical ventilated.
The North tower also utilises a dedicated BMS
system which controls and monitors all mechanical
installations, such as the HVAC system, the server
room, the grey water system, as well as the lifts.
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