Different temporary air conditioning systems were considered for the tunnel cooling, including, split PAC, ducted air, and internally fitted air handling systems.
After weighing-up all the options, it was decided that internally mounted water cooled ahu’s would provide the most cost-effective cooling system.
Four 20kW AHUs were installed with a 150kW chiller as base plant for the tunnel cooling system. Reinforced rubber hose with Cam-loc connection system was used for water distribution.
Handily, temperature control was adjustable locally at the air handling units giving the client complete control over the internal climate.
The system operated though-out the games remaining reliable at all times. No call backs were needed to this system.