Indirect Evaporative Cooling for Data Centres
Data Centres power the digital economy — but their cooling systems also consume massive amounts of energy and contribute significantly to operational costs. As demand for uptime and sustainability grows, traditional cooling methods are proving costly and inefficient.
At S Flo, we deliver sustainable data centre cooling solutions through Indirect Evaporative Cooling (IEC) — a cutting-edge, eco-friendly alternative that slashes energy consumption while maintaining precise environmental control.
Why Efficient Cooling is Critical for Data Centres?
Equipment Reliability
Servers and storage hardware must operate within strict temperature and humidity ranges to prevent overheating, system failures, and reduced component lifespan.
Energy Costs
Cooling often accounts for up to 40% of a data centre’s total electricity usage.
Sustainability Goals
With growing ESG pressures, data Centres must find ways to reduce carbon emissions and optimize energy use without compromising performance.
How S Flo's Indirect Evaporative Cooling Systems Work?
Our data center cooling systems follow an advanced process.
Fresh outdoor air is drawn into the IEC unit.
It passes through a high-efficiency heat exchanger, cooled by water evaporation — but the primary air supply never contacts water directly.
The system delivers cool, dry air into the data centre, maintaining strict control of temperature and humidity.
Minimal mechanical refrigeration is used, resulting in major energy savings.
Result
Cool, dry, contaminant-free air — protecting sensitive servers while dramatically cutting operating costs.
Advantages of S Flo's Indirect Evaporative Cooling for Data Centres
Exceptional Energy Efficiency
Cut cooling energy usage by up to 70% compared to traditional mechanical systems.
Achieve ultra-low PUE (Power Usage Effectiveness) scores — often reaching 1.2 or lower.
Precise Environmental Control
Maintain ideal conditions aligned with ASHRAE Classes A1 to A4 standards.
Protect servers from dust, moisture, and thermal fluctuations.
Minimal Refrigerant Use
Significantly reduces reliance on chemical refrigerants (CFCs, HFCs).
Supports your organization’s carbon neutrality and sustainability commitments.
Lower Operational Costs
Dramatically reduce electricity bills.
Simplified systems mean less maintenance, fewer breakdowns, and lower long-term service costs.
Flexible, Scalable Designs
Modular systems scale easily with your data centre’s future growth.
Suitable for new builds or retrofitting existing cooling infrastructure.
Ideal Facilities for S Flo’s Sustainable Cooling Solutions
Hyper scale Data Centres
Enterprise Data Centres
Colocation Facilities
Edge Data Centres
High-Performance Computing (HPC) Environments
S Flo IEC vs Traditional Chilled Water Cooling
| Feature | S Flo Indirect Evaporative Cooling | Traditional Chilled Water Systems |
| Energy Consumption | Very Low | Very High |
| Water Usage | Moderate | High |
| Refrigerant Use | Minimal | High |
| Maintenance | Low and Simple | High and Complex |
| Installation Cost | Moderate | High |
Investment and ROI Insights
Installation Costs
- Lower than complex chiller-based systems.
Operating Costs
- Up to 70% reduction in cooling energy expenses annually.
Return on Investment
- Full payback often achieved within 2–4 years.
Long-Term Savings
- Potential for millions saved over a typical data centre lifecycle.
Compliance and Certifications
Our systems align with the highest industry standards, including
ASHRAE 90.4 Energy Standards
LEED v4 Data Centre Certifications
Uptime Institute Tier Guidelines
ISO 50001 Energy Management Compliance
Why Choose S Flo for Your Data Centre Cooling Needs?
Specialized Expertise
Decades of success delivering high-efficiency, mission-critical cooling systems.
Custom-Engineered Systems
Solutions tailored to your local climate, site design, and uptime needs.
Turnkey Services
Complete support from design and installation to commissioning and preventive maintenance.
Proven Success
Documented projects showcasing top-tier PUE performance and major energy savings.