Cold Link Africa January February 2026 | Page 24

PROJECT
INCORPORATING COLD CHAIN
This collaborative approach resulted in a custom-designed evaporator coil, optimally paired with the AMS fan airflow to maximise cooling efficiency and air changes. In essence, the evaporator needed to be strategically sized to effectively harmonise with the specific airflow requirements.
The installation incorporated a strategic approach to condenser placement. The entire side of the building features remotely located condensers. This remote configuration was chosen to mitigate potential challenges associated with housing all condenser units externally, such as structural weight considerations and excessively long refrigerant pipe runs. BRS therefore opted to install receiver sets to be positioned above each room, and the corresponding condensers located remotely on the same level as the receiver set along the building ' s exterior. These receiver sets, utilising Copeland compressors, effectively addressed these logistical and engineering considerations.
THE AIR-CONDITIONING COMPONENT
Beyond the critical refrigeration systems designed for precise fruit ripening, the facility also incorporated significant airconditioning infrastructure to maintain optimal environmental conditions within the pre-cooling and boxing areas utilised by Farmwise. The detailed ductwork design for this system was handled by BRS.
Seymore says: " We also supplied the air conditioning rooftop package units for these zones. Specifically, we provided four air-cooled rooftop packages, each with a capacity of 240 000 BTUs, to service the areas not enclosed within insulated panels."
This resulted in a substantial air-conditioning capacity, totaling approximately 960 000 BTUs or 281kW. These units were described as " off-the-shelf, eco rooftop package units that we import under the brand name ' Echo '". While acknowledging the possibility of slight oversizing, the primary design consideration was ensuring adequate airflow throughout these large processing spaces.“ We opted for slightly larger units to guarantee the necessary airflow."
The processing area is characterised by conveyors and other equipment, with a network of rigid ducting with air distribution grilles overhead, to achieve a comfortable and controlled environment suitable for pre-cooling and packaging operations. This resulted in a completed installation, showcasing the four package units mounted on support frames with meticulously installed rigid ductwork extending into the building. CLA
The processing area is characterised by conveyors.
The air conditioning infrastructure maintains optimal environmental conditions.
© Cold Link Africa
© Cold Link Africa
Project name:
ZireZ DCS Sub-Tropico
List of professionals:
Name of company
Owner
ZireZ DCS Sub-Tropico
Developer
ZireZ DCS Sub-Tropico
Designer
Metraclark
Project manager
ZireZ DCS Sub-Tropico
Consulting engineer
Mechanical
Bracken Refrigeration Services
Wet Services
Bracken Refrigeration Services
Contractors
HVAC & R
Bracken Refrigeration Services
Wet Services
Bracken Refrigeration Services
Products and suppliers
Product
Supplier
Coils
Metraclark
Distribution boards
Bracken Refrigeration
Electrical components
RA Distributors
Controls
CAREL
Controls
Metraclark
Fans
AMS
Scroll compressors
Copeland
Panels
Panelman
Motorised doors
Stab-a-Load

24

COLD LINK AFRICA www. coldlinkafrica. co. za January / February 2026