Projects
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1 . As a trademark advert , the rainwater downpipes were painted Orange to mark the colour code of the client . 2 . The professional team board installed during construction displaying all the parties involved with the project . 3 . The VRF condensers from the roof of the building showing the positioning and line up of the condensers .
RACA Journal I April 2021
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THERMAL COMFORT AND INDOOR AIR QUALITY The addition of Mitsubishi ’ s Energy Recovery Ventilators ( ERV ) to the main design , assists with introducing filtered fresh air through a heat recovery process where no refrigerant is used ensuring clean air while supporting the efficiency of the main system all year round .
GLOBAL WARMING AND REFRIGERANT RESILIENCE Global warming or CO₂ emissions should always be considered holistically . This means that the impact to the environment should be considered through the entire life cycle , from the manufacturing to the recycling . These elements were too considered for this project and also played a role in product selection .
PROJECT HIGHLIGHTS In the changing world of technology , innovation becomes the key driver in providing autonomous service . The BMS system for the Orange Botswana project provides for effective monitoring and rapid response to all the services . The BMS graphics allows for ease of support .
The Orange Data Centre building is the first purposed built data centre within the Botswana Innovation Hub precinct in Gaborone , Botswana . Based on this , the building architecture catered for high level maintenance-free finishes that enhances the corporate colour of the end user .
The downblow unit forms an integral part of the HVAC innovative system for the data centre . The operations of the downblow unit is premixed on the effective connection between the indoor and outdoor condensers provided by Mitsubishi . As the first generation VRF system , it comes complete with monitoring and controls .
The project became a landmark project in Botswana due to the adherence to the project time lines and budget as issued by the client . The site handover was conducted by the deputy president of Botswana .
The air-conditioning system is provided with a VRF air-cooled condensers in both plantrooms A & B . These condensers use the ozone-friendly refrigerant system that enhances their operations . Using the VRF technology , these condensers provides reduction in the energy use for the HVAC system which in turn allows for the decarbonisation .
The refrigerant pipes are neatly installed from the outdoor condenser to the indoor units in an easily accessible trench and below the access flooring . All piping is completely labelled to ensure ease of maintenance and accessibility . The piping is also insulated to prevent any accident in future .
In the design of the roof , allowance was made for possible extension to a second floor . However , to prevent the heat island effect and ensure the reduction in AC
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