Architect and Builder November/December 2015 | Page 58

HVAC The HVAC consists of three separate systems: • Fresh air input and extraction • VRV – servicing the wards • Chiller system for sterile areas such as theatres, ICU’s and neonatal wards. These areas require a different type of air-conditioning which is sterile and filtered. Each one of these areas consists of a stand alone installation to ensure no cross contamination. FIRST FLOOR PLAN GROUND FLOOR PLAN BASEMENT PLAN Civil Engineering UPM was responsible for the civil infrastructure to the Hilton Life Hospital. The project was challenging as it required major bulk services, including the upgrade of Hilton Avenue to a Type B2 intersection, reconstruction of 380m of Monzali Drive, the construction of a 500m3 stormwater attenuation pond, a bulk sewer pump station with a capacity of 80m3 and a bulk water reservoir of 290kl. The internal services included interlocking paving for access road and parking, a gravity, waterborne sewer, domestic water mains and piped storm water. The B2 intersection was required to widen Hilton Avenue and to provide a dedicated right turning lane into Monzali Drive, to provide safe access for ambulances and resident traffic. Monzali Drive was upgraded in partnership with uMngeni Municipality, as the existing 6m road was in poor condition. The road was upgraded to an 8m wide asphalt road with concrete sidewalks. Due to ongoing maintenance by the district municipality and variant water pressure, a bulk water reservoir was provided with a 2 day storage capacity for the current hospital and future planned expansions. The storm water attenuation pond was constructed to attenuate post development flows, but also to create a feature in the landscaping, whilst it protects downstream wetlands and sensitive areas by regulating flow and retaining silt. There is no bulk sewer available at the site and a 80m3 sewer pump station was constructed to serve the hospital, bunker and commercial buildings, linking it i