Architect and Builder Magazine South Africa July/August 2014 | Page 52

The building is a culmination of dedication and commitment by a team of highly experienced professionals and main contractor and his subcontractors 52 With a VRF air conditioning system, some indoor units can run in a cooling cycle while other indoor units are running in a heating cycle. Mitsubishi’s VRF air conditioning systems have the lowest start up and running amps that in turn provide for a lower running cost. Their heat recovery system makes use of refrigerant control boxes that reclaim the heat removed from the spaces and divert the hot gas to other spaces that require heating. Another advantage of the VRF airconditioning system is the ability to integrate with the building’s domestic hot water systems. Mitsubishi offers technology whereby the VRF system is able to supply heating via what is known as a ‘booster unit’. The ‘booster unit’, comprises an inverter driven compressor and a plate heat exchanger. The booster unit is coupled to the domestic geyser by using a simple water circulating loop and plate heat exchanger. The energy made available by the VRF system is then able to heat the building’s daily domestic hot water demand, without using electrical elements. This solution Jindal Mining