RACA Journal July 2024 RACA_July_2024_digital | Page 16

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Business

HVAC REFURBISHMENT IN LUANDA , ANGOLA

By Patrick Burke ( FSAIRAC ), RPM Consulting Engineers
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 former Bank 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 for 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 replacement of all 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 ).
• 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 hand-over .
• 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 will be accommodated in Luanda for the duration of the project ( 16 months ) commencing 15 February 2024 :
• Ar Azul Projects – major mechanical work and installation
• Infinity Technical Services – BMS , controls and electrical works
• Pictech ( Pty ) Ltd – chillers ; repairs and final commissioning
• Bitzer South Africa – compressors ; supply and plantroom installation works
• Skyshot – CIAT equipment ; inspections , commissioning and final reports

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Supplied by RPM
The reinstatement of the HVAC plant serving a 25-storey former bank building in Luanda , Angola .
RACA Journal I July 2024
In addition , full training will be given to the client ’ s site maintenance staff with regards to the servicing of all plant , BMS controls operation , etc . supported by remote access facilities received from South Africa .
The project logistics will be arranged and supported via appointed South African Shipping Agents and Partners .
The final objective is to accomplish a further 15 – 20 years of reliable , safe and cost-effective plant operation for the new owners going forward .
As RPM ’ s largest HVAC refurbishment project to date , we are well aware of the challenges facing us when carrying out work of this nature beyond our borders .
Nevertheless , we have selected a highly skilled and experienced contracting team to facilitate the work . As such , we are looking forward to a successful project .
In doing so , we furthermore aim to showcase the high standard of South African Engineering expertise , commitment and integrity . RACA www . refrigerationandaircon . co . za