Project
The space in the existing riser shafts were very limited . A decision was taken by the mechanical design team to have localised toilet exhaust , as there was no space for the central toilet exhaust duct . It was not practical to add new riser shafts in the existing structure , so we had to use the riser shafts what were already there . Many internal coordination sessions with WSP ’ s electrical , plumbing and fire engineers made it possible to arrange all services successfully within the existing riser shafts .
COMMISSIONING AND FINE-TUNING Comprehensive pre-commissioning , commissioning , as well as quality monitoring were performed by the HVAC contractor on all the new shell and core mechanical systems . This was done in a systematic manner .
After completion , the HVAC contractor was required to provide training and system knowledge to the building owner / manager by submitting the following documentation :
• Design intent report
• As-built drawings
• Operational and maintenance manuals
• Commissioning records
• Commissioning reports for each system .
The commissioning records by HVAC contractor included :
• Demonstrating that the services were commissioned
• Commissioning dates , records of all functional / commissioning testing undertaken , a list of any future seasonal testing , and a written list of outstanding commissioning issues .
• The outcomes and changes made to the building as a result of the commissioning process , accounting for all the recommendations .
MODELLING WSP modelled the MEPF ( Mechanical , Electrical , Plumbing and Fire ) systems in Autodesk Revit , which is a modern building information modelling software for architects , structural engineers , mechanical , electrical , and plumbing ( MEP ) engineers , designers and contractors and developed by Autodesk .
Revit allows designing and coordinating the MEPF system components in 3D , annotate the model with 2D drafting elements , and access building information from the building model ' s database .
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RACA Journal I October 2021 www . hvacronline . co . za