www. refrigerationandaircon. co. za RACA Journal I May 2025 33
Project
RPM ' S LARGEST PROJECT YET: RESTORING HVAC SYSTEM IN LUANDA BANK
By Barry Wallett and Patrick Burke( FSAIRAC), RPM Consulting Engineers, edited by Eamonn Ryan
RPM Consulting Engineers( a division of the RPM Engineering Group) have been appointed to undertake the reinstatement of the HVAC plant serving a 25-storey building in Luanda, Angola.
Following the completion of the site survey, technical specification and detailed scope of work, five local South African HVAC contractors were selected to undertake the project, which includes the following major works:
• Repairs, servicing and remedial work to( 18 OFF) air-cooled chilled water generators( chillers)
• New state-of-the-art building management system with optimum energy savings envisaged
• The modification and installation of chilled water pipework and reticulation, associated components and pipe insulation
• The replacement of( 272 OFF) FCU controllers,( 450 OFF) CHW control valves c / w actuators and( 550 OFF) fire dampers
• All associated electrical and control wiring works
•( 7 OFF) Chiller screw-compressor replacements(+/-495kW cooling capacity { 140TR } each)
• Repairs and service to existing VRF HVAC systems( serving specific IT areas)
“ The final objective is to accomplish a further 15 – 20 years of reliable, maintenance friendly, safe and costeffective plant operation for the new owners going forward.”
• Repairs and major service to all existing CHW fan coil units throughout to include( 16 OFF) dedicated tempered fresh air AC units
• New instruments, gauges etc. throughout
• Testing, recommissioning and final handover
• Provide new O & M manuals to include all test and compliance certificates as required
The following selected South African-based contractors have been appointed to implement the specified scope of work. They
All images supplied by RPM Consulting Engineers.
Modified and installed plantroom.
www. refrigerationandaircon. co. za RACA Journal I May 2025 33