BREC Air-cooled water chillers BREF Air-cooled water chillers with free-cooling system

1. BREC Air-cooled water chillers BREF Air-cooled water chillers with free-cooling system 1602A - 1802A - 2202A - 2502A - 2802A 3202A - 3602A - 4202A - 4802A R134a (400-1200 kW)

4. BRE Range • High level performance • R134a Refrigerant • Double screw compressors • Electronic expansion valve • Innovative fans and heat exchangers • Free-cooling & Intelligent Free-cooling

5. Refrigerants: trends for the next 2 years Europe Far East & Cina USA A/C & Chillers up to 300 kW Chillers from 300 kW

6. Trend: refrigerant / compressors R134a R410A 400 - 500kW

7. R134a Refrigerant • Excellent performance • High intrinsic efficiency • Single-component • Optimized components • Limited direct (GWP) and indirect (TEWI) environmental impact

8. R134a Refrigerant • Total Equivalent Warming Impact • Refrigerant emission during the ‘lifecycle’ of the unit • Indirect emissions resulting from the CO2 emissions during energy production

9. Compressors Optimized double screw compressors

10. Compressors • Optimized double screw compressors with • R134a • lubrication of the bearings • distribution of the oil

11. Compressors • Optimizeddoublescrewcompressorswith • R134a • lubricationof the bearings • distributionof the oil • constantefficiencyovertime

12. Compressors • Optimizeddoublescrewcompressorswith • R134a • lubricationof the bearings • distributionof the oil • efficiency • semplicity

13. Double screw compressors • Optimizeddoublescrewcompressorswith • useof R134a • lubricationof the bearings • distributionof the oil • reliability

14. Double screw compressors • Optimizeddoublescrewcompressorswith • useof R134a • lubricationof the bearings • distributionof the oil • reliability • efficiency

15. Double screw compressors • Optimizeddoublescrewcompressorswith • useof R134a • lubricationof the bearings • distributionof the oil Impact Filtration Gravity

16. Economizer

17. Electronic Expansion Valve Electronic expansion valve managed by the control • Reliability: • operatinglimitsrespected • monitoringof the • refrigerantload • Efficiency: • overheat management •  Tcondensation • Precision: •  Tevaporation

18. Evaporator “Single passage” evaporators • uniform temperature even in partial load conditions • oil drag favoured • heat exchange always in “countercurrent ” conditions

19. Air side exchangers Modular structure • “V” structure • Flexibilityduringmovement • Reliability • Easeofmaintenance • Oversized • Acoustic impact • Efficiency • Maximumexternal temperature

20. Acousti-composite fans Axial fans produced in a composite material • Aluminium core • better heat dissipation • Plastic blades • better air flow • Less weight • more reliability

21. Acousti-composite fans - EC Axial fans produced in composite material with EC motor • High reliability • High efficiency • Starting current lower than the nominal • Low noise levels

22. Acoustic impact: Available versions The basic version is already low noise, without loss of efficiency • Low noise version • Ultra-low noise version

23. Electrical Panel Protection & Reliability • Electric bars distribution • Absorbed current acquisition • Phase sequence control • Minimum and maximum power supply control

24. Reliability: Continuous power supply Principal line Unit A Double power supply Generator installation Chillers Principal Line Unit B Generator

25. Reliability: Continuous power supply Double power supply installazione Chillers

26. Advanced Control Precision, Reliability, Connectivity • PID Logic to control the outlet water temperature • Continuous monitoring for the operating parameters • Verification and control of the safety intervals • Integrated LAN • Extensive BMS connectivity

27. Delta T BREC Traditional Time Advanced Control Precision, Reliability, Connectivity • PID Logictocontrol the outlet water temperature • Continuousmonitoringfor the operatingparameters • Verification and controlof the safetyintervals • Integrated LAN • Extensive BMS connectivity

28. Advanced Control Precision, Reliability, Connectivity • PID Logictocontrol the outlet water temperature • Continuousmonitoringfor the operatingparameters • Verification and controlof the safetyintervals • Integrated LAN • Extensive BMS connectivity

29. Advanced Control Precision, Reliability, Connectivity • PID Logictocontrol the outlet water temperature • Continuousmonitoringfor the operatingparameters • Verification and controlof the safetyintervals • Integrated LAN • Extensive BMS connectivity

30. Intelligentfree-cooling Mission critical installations require reliability and energy savings • The logic “n+1” assures continuous operation • Free-cooling allows for a reduction in energy consumption

31. Intelligent free-cooling Annual energy saving • Compared to traditional free-cooling: up to 7% • Compared to a traditional installation: up to 50%

32. Free-cooling connections Intelligent free-cooling Free-cooling coil Evaporator Primary pump Free-cooling pump Non-return valve

33. Intelligent free-cooling Stand-by Running Running Mechanical cooling

34. Intelligent free-cooling Free-cooling