Projects
As the City of Johannesburg seeks to introduce economic
opportunities available for the masses, the Kazerne Intermodal
Transport Facility seeks to do just that, fitted with a HVAC system
that delivers ventilation like no facility has in the region.
S
ituated in the central business district (CBD) of
Johannesburg, the transport facility will have a mix of
local and regional transport, which includes long-distance and
cross-border taxis plying between Johannesburg and several
Southern African countries.
With the project, the City is addressing the ill-effects of the
past and implementing programmes that link residents to
economic opportunities and bring quality public transport
services closer to the people.
Budgeted at R400-million, the facility will have new and
modern amenities, like storage facilities, toilets, waiting areas,
air conditioning and ventilation.
CLIENT BRIEF
Fans supplying air to offices below.
The air handling unit/chiller with some of the copper piping
running through.
Ducting for the toilets.
38
RACA Journal I February 2020
The transport facility required a new HVAC system for all four
levels which include, underground, lower upper ground, first
and second floor. Commissioned by 52 Engineering they are
responsible for:
• Air conditioning shall be provided in the office and
specified areas through DX inverter type split units,
R22 –type gas shall not be accepted as it is being
phased out. The controllers for each split unit shall be
hard wired and shall be installed parallel with the light
switch in these rooms.
• All equipment on the outside of the building shall be
weather proofed including all wiring and piping, which
shall be appropriately insulated.
• All Condensate Drains from DX splits, DX FA units as
well as fan coil FA Units shall be drained to the nearest
building drain including P-Traps and vents.
• Smoke exhaust (with fire rated fans) in the centre core
of the multi-level parking area, as well as from inside the
retail and office areas, shall be done by means of heavy-
duty black steel ducting and smoke exhaust fans.
• Some of the smoke exhaust systems shall have a dual
purpose and shall be installed and controlled in such a
way that it runs at 100% during a fire situation but at
about 30% during normal building operation hours.
• The smoke exhaust duct runs in the double volume
parking areas shall be used for vehicle exhaust fume
removal during normal building operations and for
smoke exhaust during a fire situation.
• Some of the smoke exhaust duct runs shall be incorporated
with the FA exhaust systems of the building to be used for
ventilation or return air to the heat recovery units.
• All kitchen hoods (with spark proof fans), including
large kitchens as well as small dedicated retail areas,
shall form part of the HVAC installation.
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