Free Cooling ...save energy & reduce your costs

1. Free Cooling ...save energy & reduce your costs

2. Regions of the world for Free Cooling

3. Dynamic Free cooling ...for your data centres and switches

4. Free cooling Retrofit principle for Shelters Air inlet grill STULZ Free Air Fixation on the wall Overpressure grills Fresh air inlet From the bottom side Hot air outlet

5. Freecooling challenge • For BTS sites equipped with split comfort • Reduction of the operating cost • Total control of existing split comfort unit • Use the full potential of Energy-saving • Reduction of the Carbone footprint

6. Intelligent system and control Existing Air con /Shelter Including Remote control on/off and alarms Add Free cooling Box

7. Main technical features STULZ Free Air : Description • One single frame (600x640x600 mm) • Cooling capacity until 6000W • Power supply = 48VDC • Electronic control • Control and management of comfort split • Variable speed control of EC fan: • Low noise emission • Reduction of power consumption Free cooling Box * With DT=10°C

8. Standard Intelligence System intelligence includes: • Take over of the whole system control through Microprocessor controller • Remote control on/off incl. alarms • Monitoring system • probes for monitoring split comfort (with 3,5MT cable) • screw terminals for digital inputs (on/off split unit) and outputs (up to 9 alarms) • 48VDC modulating FCB-fan • Airflow and clogged filter signal

9. Airflow automatically adjustable with outdoor temp

10. Full potential of Energy Saving Frankfurt Temperature profile Heat Load = 3500W Using FCB35 and Split Comfort data 80% Energy saving

11. Free cooling Conclusion Save your Money REDUCE COSTS Use intelligent system With FREE COOLING Preserve your environment

12. Find STULZ ... Headquarter Germany Production Sites Germany Italy USA India … and its qualified and professional partners –worldwide. China