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Project
air back in from the bottom. This system – designed by BRS many years ago- has proven highly effective over the years of installations across South Africa, as well as across southern Africa.
Seymore states that there were " actually no challenges " beyond the initial COVID-19 related delays. This is due to the team ' s extensive experience with such installations, and even in the event of technical issues, such as a control system
The processing area. malfunction, suppliers like CAREL are known for their prompt on-site support, often responding on the same day.
Minimising power consumption is a significant benefit for the client, hence the use of Copeland scroll compressors in many applications compared to older compressor types which, given there were ultimately 42 rooms, delivered considerable energy saving. Seymore highlights the challenge of finding a 1.1kW fan that delivers the same airflow as current models but with significantly lower energy usage. For the DCS-ZIRE Subtropico project, energy efficiency was also addressed through the implementation of lower voltage( 12-volt DC) systems for certain control components and the use of LED lighting throughout the ripening rooms, contributing to a reduction in overall energy consumption.
The scale and the significance of the client, Subtropico, are what make this project unique to BRS. Seymore explains:“ You rarely get a project of 23 rooms in a single project – even 10 would be a large project, and then to complete it in five months is something we’ re proud of.” RACA
Project name: |
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ZIRE DCS part as the Subtropico Group |
List of professionals: |
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Name of company |
Owner |
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ZIRE DCS part as the Subtropico Group |
Developer |
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ZIRE DCS |
Project manager |
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ZIRE DCS |
Consulting engineer Mechanical Wet services
Bracken Refrigeration Services Bracken Refrigeration Services
Contractors Main building HVAC & R Wet services Electrical
Bracken Refrigeration Services Bracken Refrigeration Services
Product suppliers Product Supplier
Coils Distribution boards Electrical components Controls Controls Fans Scroll compressors Panels Motorised doors
Metraclark Bracken Refrigeration Services RA Distributors CAREL Metraclark AMS Copeland Panelman Engineering Stab-a-Load
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RACA Journal I September 2025 www. refrigerationandaircon. co. za