The new TZ range is a whole new world of possibilities
Daikin has recently introduced its new TZ-C segment, which is what we like to call “the new answer to big projects”. With this latest addition, Daikin extends the possibilities and the benefits offered by the TZ product range to higher cooling capacities, also bringing in a whole new world of features in terms of controls.
The new range, available with the LOW GWP refrigerant R1234-ze as well as the HFC R134a, stands out for the increased cooling capacity – up to 1600 kW and 1960 kW, respectively – and the wide operating envelope (chilled water temperature from +25°C down to -12°C). Thanks to the new generation of single screw compressors these ranges confirms, or even improves, the high energy efficiency levels provided by the TZ series on larger capacities.
The new single screw compressor is one of the main and most interesting features in Daikin 3rd generation of air-cooled screw chillers.
As we all know Daikin has a history of leadership in the field of screw compressor chillers, which have been installed all over the world for 20 years, completely fulfilling customers’ satisfaction. We have introduced over time ground-breaking technologies like the Variable Volume Ratio, or the refrigerant cooled Inverter technology directly integrated to the compressor. All of these technologies have helped increasing units’ efficiency with a particular attention to part load. In fact, because a chiller operates most of its time at part load, to be defined efficient it must have a high part load efficiency.
With this aspect in mind, and the will to satisfy the need for higher efficiency at high capacities and the need to comply with F-Gas regulation with low GWP refrigerants, Daikin invested on developing a new single screw compressor for the TZ- C.
The new design includes a new screw profile to get the best performance with both the R1234ze and the R134a refrigerants. The result of this newly developed compressor is a substantial cooling capacity extension keeping the unit’s footprint relatively compact and still very efficient. Other than this, the new TZ-C allows to comply with the F-Gas regulation thanks to the use of low GWP refrigerant R1234ze, which has a GWP as low as 7, as a green alternative to 134a.
But it doesn’t stop with the new compressor. The new TZ-C, other than the ability to cover bigger projects requiring extended cooling capacity, also features the new controller Microtech4, including new functionalities like the integration of the Intelligent Chiller Manager in the unit controller, and the performance monitoring functionality, which allows to read the actual performance of the unit on the controller display or from the cloud through Daikin On Site platform.