Daikin supplied two air-cooled screw inverter chillers for an 5-star apartment complex in Australia

Daikin supplied two air-cooled screw inverter chillers from the TZ range for an 5-star apartment complex in Newstead (Queensland), Australia. The newly installed units will provide cooling to the whole building.

Products installed

2x EWAD-TZ

Cooling capacity: 900 kW

About the project

The project involves a complex of Wellness-Lifestyle residences with luxurious finishes. The complex will have a total of 316 apartments.

The two air-cooled chillers supplied will serve multiple Air Handling Units in the large function and retail areas along with fan coil units in individual luxury apartments.

Daikin was the preferred manufacturer of the chillers by the developer and owner of the building for brand recognition, reliability, efficiency, and sound levels.

The owner of the building (and developer) required VFD screw compressor units due to their robustness and reliability. The footprint of the chillers was also a big factor due to limited space on the roof deck. Besides that, the machines were selected with low noise fans to ensure that residence at the roof top pool levels were not disturbed by the chillers on the plant deck.

About the products

The new air-cooled TZ Series with Daikin inverter driven single screw compressor, is designed to enhance HVAC systems energy efficiency thanks to the inverter technology, which allows the chillers to provide the right amount of cooling the building needs, despite conditions might change throughout the day or the year.  Another important aspect in this project was keeping noise emissions from the HVAC system as low as possible, which in the specific case was addressed with a low noise configuration able to meet the requirements.

Besides energy efficiency and low noise emission levels, reliability was ensured by the screw inverter compressor designed and manufactured by Daikin. Differently from other screw solutions, Daikin’s 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.