Daikin supplied an air-cooled screw inverter chiller from the TZ range for an important bank Headquarter in Kinshasa, in the Democratic Republic of the Congo. The newly installed unit is being added to an air-cooled screw compressor chiller by Daikin, previously installed in the building.
Total cooling capacity: 1560 kW
CHALLENGE & SOLUTIONS
he chillers installed are providing the necessary cooling to the air conditioning system of a high-end bank, which is meant to serve both the reception areas and the office areas in the building. Then, the chillers are used to provide the whole building with a comfortable environment.
The new air-cooled chiller with Daikin inverter driven single screw compressor, will enhance the HVAC system’s ability to provide the right amount of cooling the building needs, with very high efficiency levels. Another important aspect in this project was keeping noise emissions from the HVAC system as low as possible, which in the case of the new TZ chiller was addressed with a low noise configuration able to meet the project requirements.
The screw inverter compressor designed and manufactured by Daikin, differently form a screw compressor, uses one main screw meshing with twin star rotors to produce volume matching compression cycle. Due to the main rotor, balanced in both radial and axial direction, the compressor bearing has extremely high reliability. Therefore, its life span can be longer than other screw compressors. The single screw compressor, then, has only three moving parts. As a result of that, it reduces the possibility of failure, keeps operation costs low and ensures great reliability.
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