Kusile Power Station

The Kusile Power Station project, which is located near the existing Kendal power station, in the Nkangala district of Mpumalanga, comprises six units, each rated at an 800 MW installed capacity for a total capacity of 4 800 MW. Once completed, Kusile will be the fourth-largest coal-fired power station in the world. The Kusile project includes a power station precinct, power station buildings, administrative buildings (control buildings and buildings for medical and security purposes), roads and a high-voltage yard. IES together with Enviroware Construction are responsible for the HVAC portion of the project. Type: Chilled Water AC Plant, Direct Expansion AC, Packaged units Status: Current Value: USD 68.3 million
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ABSA Sunward Park

The Sunward Park system comprise of VRF heat recovery systems. A local split air Type: conditioning unit that was provided for the ATM area. Ventilation comprise of fresh air fan systems and toilet extract systems. Status: Completed July 2018 Value: R1.06 million
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The Leonardo

The Leonardo is a 55 floor mixed-use property development currently under construction in Sandton that, when completed, will have reached a height of 234 metres, 11 metres taller than the current tallest building in Africa. The building is being built at 75 Maude street, in Sandton, South Africa. IES is responsible for the HVAC systems for the entire building. Type: VRV System Status: Current HVAC Project Value: USD 5 million
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FISH Five Star Hotel Ezulwini Swaziland

The Swaziland Ministry of Economic Planning are currently building a sizeable International Convention Centre (ICC) and Five-Star Hotel in the Ezulwini Valley, between Mbabane and Manzini in Swaziland. IES Swaziland, together with Thermaire Investments, are responsible for the HVAC works of the hotel. Type: Chilled and Hot Water for comfort cooling and domestic hot water generation Status: Current Value: USD 13.8 million
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Medupi Power Station Limpopo

Medupi Power Station is a dry-cooled coal-fired power station being built by Eskom near Lephalale in Limpopo province, South Africa. According to Eskom, the name chosen for the station, Medupi, is a Sepedi word for "rain that soaks parched lands". IES in partnership with Enviroware Construction are responsible for the HVAC portion of the project. Type: Chilled Water and Direct Expansion AC Plants and Packaged Units Status: Current Value: USD 27.5 million
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Givaudan South Africa

Givaudan, global leaders in developing tastes and scents, recently built a new facility in Johannesburg, and IES was responsible for the HVAC portion of the project. Type: Packaged air handling units, specialised air flow & extraction. Status: Completed February 2019 Value: R4 million (ex VAT)
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Jakaranda Shopping Centre

The redevelopment of Jakaranda Shopping Centre comes from a need to re-establish the Centre as a Centre of Convenience, that has roots within the community while adding a fresh modernized look and feel. On completion, the redevelopment total GLA will stand at an estimated 22 000m2, with the addition of a new rntrance off 18th Avenue, a new gym and a new food court. These elements are just some of the additions planned, all with a key objective of making the Centre more accessible in terms of pedestrian and traffic flow. IES is responsible for the HVAC works of the project. Type: A/C refurbishment. Packaged air conditioning units, water cooled chiller & cooling tower replacements. Status: Current Value: R16.9 million
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Illovo Point

This 15 storey building was designed to maximize the quality of work-life, comfort and productivity of its occupants. Optimum light levels and fresh air flows have been carefully considered. Breakfast, lunch and dinner are served at a choice of quality restaurants, which create an interactive streets-cape with the ground floor similar to the Developer’s popular 24 Central mixed-use development in Sandton. IES was responsible for the HVAC works for the entire building. Type: Office block, utilising chilled water system with fan coil units. Status: Completed March 2019 Value: R21.2 million (ex VAT)
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Shell Garage Kroondal East & West Bound

Type: Shell Kroondal garages East and West comprises of Variable Refrigerant Flow Heat Recovery systems with ducted hide-away, cassette, outdoor air processing units and kitchen canopy system (One system East Bound and One system West Bound), it also consisted of filtered fresh air fans, exhaust fans and toilet extraction systems. Status: Completed October 2018 Value: R2.25 million
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Liberty Midlands Mall

The original Liberty Midlands mall was opened in 2004 and over the years, several extensions and upgrades have been completed to increase the trading and shopping areas of this popular Pietermaritzburg mall. The Liberty Group has now further entrenched its investment with a new expansion project currently underway which intents to strengthen the mall’s positioning in the area. The improved retail offering will boost the mall’s ability to differentiate itself from similar developers in the region and upon completion, the extension will increase the entire complex floor space by an additional 19000m². The mall aims to be 4-star rated by the Green Building Council of South Africa and as such the HVAC system was designed with maximum efficiency in mind. The air conditioning system for the new phase will comprise of 40mm double-skinned air cooled package units. Some areas will be conditioning by DX units, with dedicated filtered fresh air introduced into certain areas. HVAC installation is due to commence in August 2017. Suppliers included: -Bluebox -Rickard -AMS -Dunham Bush -TROX Client: Stanlib Project Manager: GHC Africa Project Management Architects: Bentel Associate International Mech. Consultants: AOS Consulting Engineers Main Contractor: Liviero Building (Pty) Ltd. HVAC Project Value: R 24 812 847.86 (ex VAT) Practical Completion Date: January 2018
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East Rand Mall

The sizable East Rand Mall which was as voted best shopping centre for the year 2015 and 2016 in the Best of Ekurhuleni Readers' Choice Awards was recently refurbished and extended to improve the overall shopping experience for patrons. The first phase of the renovation commenced in January 2015 and the entire re-development was completed in the last quarter of 2016. IES was awarded the contract to supply and install the HVAC for two phases of the renovation. The following system was installed for the first phase of the renovation: For the minor tenants and line shops – Daikin inverter R410a units (15) totaling 270kW of cooling. For the major tenants – Mr Price Group (Home, Sport & Apparel), Cotton On and Toy Kingdom – Viking packaged air-cooled units (5) totaling 1900kW of cooling and a total air volume of 55 m³/s were installed. Toilet extract systems were also upgraded in addition to new A/C systems in entrances 1 & 4. For the second phase of the renovation, the following system was installed: Minor tenants and line shops – Midea inverter R410a units (35) totaling 240kW of cooling. Toilet extract systems upgrades for one toilet &amp in addition to a new toilet extract system. Suppliers included: • Packaged Units – Viking Air Conditioning • Inverter Units Phase 1 – Daikin • Inverter Units Phase 2 – Midea • Fans and ancillaries – Phase 1 & 2 – AMS Supplies • Fire Dampers – Electrovent • Ducting and accessories – Ductshop • Air diffusion – Rickard
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72 Grayston Drive

72 Grayston Drive, situated in the well-known area of Sandton, Johannesburg, was recently upgraded. This building underwent its transformation in order for it to complement its architecturally chic and modern surroundings. It is located up the road from the renowned Nelson Mandela Square, Sandton City and Sandton Convention Centre. 72 Grayston Drive is a green building and therefore the HVAC installed by IES had to be particularly environmentally friendly but still function optimally. The systems installed are as follows: • Daikin VRV Systems • Toilet Extract Systems • Fresh Air Systems A short system description: The main system is the VRV-IV type with the plant located on the roof level and refrigerant pipes to each individual indoor in-ceiling type unit. BC controllers were installed to distribute the refrigerant to the respective indoor units as per the demand requirements. The overall air distribution for the in-ceilings is via constant volume ceiling diffusers positioned in the ceiling tee. All of the air-conditioning units are controlled via dedicated controllers in each individual area. Anti-vibration mounts and/or spring mounts were installed for all equipment, to absorb the vibration and eliminate sound during operation. Each fresh air supply branch to the hide away units has a butterfly damper fitted onto it. The damper has a quadrant that can be manually actuated to close, open or restrict the amount of air flowing through. Once the required flow rate is achieved, the quadrant can be locked into position. The initial design of the building was changed to suit the client office’s layout and this affected the equipment IES had originally selected. IES had to negotiate with suppliers regarding deliveries and stock availability but was still able to meet the deadline date. Suppliers included: • VRV System: Daikin • Fresh and extract air Fans: Actom • Dx system: Samsung • BMS : Daikin • Air terminals: Strategic Air and Trox Suppliers included: Client: Public Investment Corporation Project Manager: Origin Project Managers Architects: Paragon Architects Mech. Consultants: Mott Macdonald Main Contractor: Trencon Construction Project Value: R9 682 739.82 Practical Completion Date: 8th December 2016
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90 Rivonia Road

90 Rivonia, a Redefine Property development, and the new home of Webber Wenzel, is in the heart of Sandton, Johannesburg, and consists of 7 floors of office space that amount to 43 975m².   The design of the building placed large emphasis on being environmentally sustainable in terms of energy, water and resource efficiency. As part of this strategy, the HVAC solutions provided by Improvair Environmental Solution needed to adhere to strict guidelines. These included a 100% increase in fresh air provision to enhance mental alertness and dilute incidence of airborne viruses and bacterium, a default set point temperature of 22.5 degrees Celsius and cellular spaces which are fitted with wall mounted temperature adjusters. The CIAT Cristopia (STL) was the system of choice. It’s a flexible and reliable solution for the management of energy needs, enabling a significant reduction in installed chiller capacity (up to 70%), the use of low tariff electricity for significant running cost savings and effective management of cooling according to the real demand.   Due to its inherent characteristics and its rapid reaction time the STL improves the reliability of any air conditioning or industrial refrigeration system. The installation comprises among others: -Air-cooled chillers -Ice and hot water storage tanks -Chilled fan coil units with resistance heating and networked control -Ceiling diffusion -Dedicated fresh air provision to occupied areas, incorporating fresh air-pre conditioning -Some extract system -Variable rate basement extract on CO/CO2 control -Bathroom, kitchen and other ventilation as required   Suppliers included: CIAT Cristopia Air Handling Units: Viking Air Conditioning Heat Exchangers: CIAT Fan Coil Units: Sinko Pumps: Wilo Controls: Landis and Staefa Electrical Boards: Ushaka HVAC Solutions
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Mall of Africa

Atterbury Property Group has recently completed the development of the 131 000m² Mall of Africa, South Africa’s biggest single-phase shopping mall development to date. The mall boasts over 300 shops, in addition to a host of restaurants and an IMAX cinema complex. Improvair Environmental Solutions (IES) was awarded the HVAC contract for the right half of the mall, and installed the following system: The main system is a central heat pump chilled/hot water system with a combined capacity of 5.8 MW cooling and 1.8MW heating. The system can simultaneously supply hot and cold water into the building to meet different demands from the occupants. The following equipment is incorporated: 6 x cooling only chillers 7 x heat pump chillers 57 x ahu's 22 x secondary chilled water and hot water pumps 16 x kitchen canopy extract and make up systems for restaurants Several chilled water fan coil units and DX split units Various toilet extracts and make up systems   Suppliers Chillers: Clivet (Peter Grooves Air conditioning) Air Handling Units: Viking Air Conditioning Fan Coil Units: Sinko/Petra DX split Units: Samsung/Daikin Ventilation Fans: Systemair/AMS Diffusers/Grilles: Rirkard/Trox/Strategic Air/EMA Ducting: Ductshop    
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Horizon Maputo Mozambique

This new hotel type development consists of the following: The building comprises of a common basement to podium section, with two separate building towers (an apartment tower and an office tower) extending upwards from the common podium level. The bottom basement level consists of all services; a kitchen, staff rooms, the cooling tower plant room, server rooms and general offices. The Retail, Restaurant and Function Room areas are found on the Ground Floor. Level 3 (Podium level) houses the Chiller Plant Room under the Office Tower. Under the Apartment Tower, a Gym, Function Room and some apartments are located. There are 14 office levels in the Office Tower and 18 Apartment levels, of which the top two levels comprise of Penthouse floors, lower & upper level respectively. An exposed Roof Plant room is found on both levels. Air Conditioning System The air conditioning system is a central chilled water system, consisting of:
  • 4 off 1400 mw water cooled chillers with hot water heat recovery
  • 8 off closed circuit cooling towers 49 off air handling units
  • 451 off fan coil units
  • 25 off primary, secondary and hot water pumps
  • VRV and DX systems serving Data and Server Rooms
Suppliers included:
  • Cooling Towers: BAC – 8 off
  • Pumps: SPP Pumps
  • Air handling units: Voltas
  • Heat Exchangers: Voltas
  • Fan Coil Units: Skyshot
  • BMS: Satchtec
  • Electrical Panels: Hayesons/Voltas
  • Chillers: Voltas
  • VRV System: Daikin
This development is part of the Raddisson Hotel Group.
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MTN Doornfontein 2015

Project Description: MTN Doornfontein is one of the key MTN Data Centres, handling the bulk of all MTN’s cellular traffic. This site is state of the art, boasting an environmentally friendly footprint and innovative use of technology. System Description: This is a tri-generation system that uses a Broad Chiller to utilise hot water from the Gas Powered Generator to provide chilled water to the building. This site also features a hybrid cooling tower from Evapco, which is the first of its kind in South Africa. Chilled water is exported to the building by means of two plate-to-plate heat exchangers with circulating pumps as well as primary pumps supplied by Grundfos. This site features environmentally friendly HDPE piping, with closed cell thermoflex insulation. The electrical components and controls were provided by uShaka Trading. Insulation and vinyl cladding was carried out by Vedder and Moffatt. HDPE piping installation was done by Natal Plastics. Hybrid Cooling tower supplied by Evapco. Broad Chiller was supplied by Voltas. This system has a total cooling capacity of 750kW.
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Mitchells Plain Hospital

The R500 million Mitchells Plain Hospital construction project has been a massive undertaking by the Western Cape Government. The hospital will offer district hospital services to people living in the Mitchells Plain, Philippi and Mandalay areas. Built just off the R300 and at the back of the existing site of the Lentegeur Hospital, the facility will be easily accessible for the people of Mitchells Plain. As a district hospital, the facility will provide care and support services to the area's primary healthcare clinics. Construction began in January 2010, and final completion is expected in January 2013. The new hospital will form an important link in the reshaping of healthcare services by providing district healthcare to the communities of Mitchells Plain, Phumlani, Mandalay, Browns Farm and Cross Roads. The estimated population of 432 462 people that will be served by this hospital is a mix from different communities and of different socio-economic status. The hospital will have a total of 230 beds, and the design will allow for future expansion to 300 beds.
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MTN Remote Mini Hub Switches

IES undertook to provide the main HVAC installation to MTN for their Remote Mini Hubs across South Africa. These sites stretched far and wide across many regions in RSA including Rustenburg, George, Klerksdorp, Worcester, Ermelo, Queenstown, Empangeni, Kimberley, Port Shepstone, Mthatha, East London and Ladysmith. The systems comprised of Data Centres which required Tier 4 redundancy with the best equipment available today. AC System
  • Tier 4 Chilled water and DX systems
  • Internal CRAC units
  • Viking/Munters Humidifiers
  • LG VRV Systems for Admin Areas
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Standard Bank Rosebank

Standard Bank built a new office development in Rosebank, Johannesburg, at a construction cost of R1.6bn. The new office development is an initiative that the banks says allows for consolidation of occupancies in leased premises in the greater Johannesburg area as well as for growth in staff numbers. The building, which is strategically placed just a stone's throw away from the Gautrain station in Rosebank, houses some 5 600 Standard Bank employees. AC System
  • Viking Fresh Air Units
  • Viking Chilled Water Air Handling Units
  • Clivet Chillers
  • ACCIima Air Handling Units-111 off
Situated close to major highways and the Rosebank Gautrain station, this mammoth building is the epicentre of the institutions infrastructure. It's eco-friendly 5-star GBC-SA design, coupled with the latest technologies, sets this new building as testament of engineering excellence.
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Coastlands Hotel Umhlanga Ridge

Coastlands Hotels and Resorts presents a new product to enhance their brand. Coastlands Umhlanga Hotel and Convention Centre is extraordinaire beyond expectation, promising the highest standards of luxury to be experienced in Kwa-Zulu Natal. The hotel is situated in Gatemax, a commercial, retail and hotel complex, boasting fine architecture, sharp definition, and unmistakable features of perfection. The hotel is centrally located on the Ridge of Umhlanga Rocks Drive, North of Durban's CBD, and has the most desired, captivating and breathtaking views overlooking the Dolphin Coast. Coastlands Umhlanga Hotel and Conference Centre is a mere 15-minute drive from King Shaka International Airport and is a stone's throw away from the largest shopping mall in the southern hemisphere, Gateway Theatre of Shopping.
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Forensic Laboratory Cape Town

A new forensics laboratory in Cape Town is part of the police's turnaround plan to increase convictions through clear-cut evidence. The laboratory has been operating since November 2011 and focuses on DNA analysis, identifying drugs, causes of fires, polygraphs, analysis of gun shot residue, handwriting analysis, bloodstain analysis and 3D facial recognition. It serves the Western Cape, several districts in the Northern Cape, the Eastern Cape, and replaces the old forensics centre which was being leased in Delft. It is also one of only four forensic laboratories in the country - with the others in Port Elizabeth, Pretoria and Durban. The state-of-the-art centre includes a system of rails running the length and breadth of the building (running about 800m in length) and 50 boxes in which collected evidence is channelled from nine kiosks to the correct department for investigation.
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Unilever Riverhorse

Unilever’s new Durban Plant – A model of sustainable savoury dry food production. The new plant produces products for renowned brands, including Knorr, Robertson’s, Knorrox, Aromat and Rajah. The Indonsa plant has the ability to become the biggest savoury dry food site in Unilever world-wide. It has been designed to produce 65 000 tonnes of products per year and has an expansion capability of up to 100 000 tonnes. The 22 000 sq/m metre factory is equivalent to three soccer fields and is situated on 78 000 sq/m of land. The advanced technology in operation at Indonsa, sets new global standards in responsible and sustainable dry food production. It embodies our resolve to simultaneously improve the lives of people and to entrench respect for the environment.
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OR Tambo International Airport A1 A2 Terminal

O.R. Tambo International Airport (ORTIA) in Johannesburg is the air transport hub of Southern Africa, catering for more than 20 million passengers each year. With more than 18,000 people employed by various companies at ORTIA, the airport plays a vital role in the city’s and Gauteng province’s economy, and boasts an impressive infrastructure that has expanded by thousands of square metres from its modest origins. IES provided 48 Viking chilled water air handling units to serve the New Arrivals hall, baggage collection terminal, immigration section, the new 90 room Transit Hotel, State protocol lounges as well as various office spaces. AC System
  • 48 Viking Chilled Water Air Handling Units
  • Smoke Extraction system
  • 60 Split units for data Rooms
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Cape Town International Airport

Cape Town International Airport is the 2nd largest airport in the ACSA network and Africa’s 3rd largest airport. It is also Africa’s premier tourist and VIP destination and has established a reputation as Africa’s premier international award-winning airport, consistently performing among the best in the world for service in its category. Cape Town International Airport completed major construction upgrades with the new Central Terminal Building (CTB) at the centre of this expansion. The airport’s Central Terminal Building opened on 7 November 2009. Other projects such as the multi-storey parkade located near the International Terminal and the massive road network upgrade were completed in March 2010. Other projects include the new air-bridges and the aircraft stands on airside. The HVAC plant consists of 5 water cooled chillers handling 279l/s of water and producing 7000Kw of cooling capacity. The chilled water is supplied to 15 built up masonry AHU’s and 34 Packaged AHU’s moving 271 m3/sec of air. The terminal buildings are served by 23 communications wiring centres fitted with 40 Close control Dx downblow split units. The terminal buildings are served by 34 smoke exhaust fans, 8 pressurisation fans, 10 outside air supply fans and 55 extract and ventilation fans.
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Moses Mabhida Stadium

With its “arch of triumph”, the Moses Mabhida Stadium is a defining landmark similar to Sydney’s Opera House or The London Eye. In addition to this internationally acclaimed engineering feat, the multi-disciplinary aspect of the stadium’s design allows the stadium to host a wide range of sporting and cultural events, putting it on a par with other international venue’s such as the Stade du France and Wembley Stadium. The Moses Mabhida Stadium has changed the way we view sporting venues in South Africa. A stadium may be venerated as the scene of many an epic clash, but it need not be a monolith that only comes alive on “match day” - or when the members of the band plug in their guitars. The Stadium utilises a chilled water system using 4 chillers and cooling towers, which supply chilled water to ducted fan coll units in the Club Offices and Suites. The basement has a smoke extract system. The various retail areas around the stadium are air conditioned using cooling towers supplying condenser water to water cooled package units.
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Green Point Stadium

One of the most artistic football venues in South Africa, the newly- built Green Point Stadium is situated in one of the much sought-after areas in the city of Cape Town. Green Point Stadium is one of the two semi-final venues for the FIFA World Cup™. This multi-purpose venue is also going to be used to stage major events and concerts. Fans will be a stone’s throw from the ocean and the mountains of Cape Town will also provide the backdrop for matches. The stadium has a capacity of 70,000. Several ventilation and fresh air supply systems provide both ventilation / fresh air in normal operation and, in the event of a fire in the stadium, will ramp up in a zone-specific manner to exhaust smoke and provide clean air to the escape routes, lifts and stairways.
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