Applications by Sector
Data Center HVAC Solutions
High-precision CRAC and CRAH for critical IT infrastructure
Precision HVAC systems for data centers, server rooms and critical IT environments. CRAC and CRAH equipment with ±0.5°C temperature control, N+1/2N redundancy and 99.999% availability. ASHRAE TC 9.9 compliant designs with target PUE below 1.4. Over 50 years of experience in mission-critical HVAC.
Talk to SpecialistTechnical Specifications
Process Requirements
Controlled environment per ASHRAE TC 9.9 for reliable IT equipment operation. Continuous temperature monitoring at multiple points.
Cold air supply directly to server inlets. Aisle containment for maximum efficiency.
Hot air extraction expelled by servers. Containment system to prevent mixing with cold air.
Controlled environment for batteries and power equipment. Ideal temperature to maximize battery lifespan.
HVAC for network equipment, switches, routers and fiber optics.
Controlled environment for high-density disk storage systems.
Technical Analysis
The Critical Importance of HVAC in Data Centers
In a modern data center, HVAC is not just a matter of comfort - it is a matter of operational survival. IT equipment generates intense heat during operation, and without an adequate cooling system, temperatures can reach critical levels in a matter of minutes, causing performance throttling, processing errors, and, in extreme cases, permanent hardware failures.
Helioterm understands that every data center is unique. Whether it is an edge data center with a 50 kW load or a hyperscale with tens of megawatts, our approach is always based on precision engineering, detailed thermal load analysis, and careful technology selection.
Helioterm Project Methodology for Data Centers
Our project methodology follows international best practices and includes:
- Detailed Thermal Load Analysis: Mapping of all equipment, its thermal dissipations, and usage patterns over time.
- CFD Modeling (Computational Fluid Dynamics): Computational simulation of airflow to identify hot spots and optimize air distribution.
- Technology Selection: Choice between CRAC, CRAH, in-row cooling, or hybrid solutions based on load density and environment layout.
- Redundancy Sizing: Precise calculation of required redundancy (N+1, 2N, 2N+1) according to the desired TIER level.
- Free Cooling Integration: Climatic analysis of the region to maximize the use of free cooling and reduce PUE.
Advanced Technologies for Maximum Efficiency
Helioterm offers the most advanced technologies on the market for data center HVAC:
Chillers with Magnetic Levitation Compressors
Magnetic levitation compressors represent the state of the art in energy efficiency. With no mechanical contact between moving parts, these compressors eliminate friction and the need for lubricating oil. The result is a COP (Coefficient of Performance) greater than 6.0 under partial load conditions - exactly where data centers operate most of the time.
Integrated Free Cooling
In regions with favorable climates, free cooling can drastically reduce energy consumption. Our systems are designed for automatic transition between mechanical refrigeration and free cooling, maximizing savings without compromising reliability.
Aisle Containment
The physical separation between cold and hot air is fundamental for efficiency. Our cold or hot aisle containment systems can increase the efficiency of the HVAC system by up to 30%.
Smart Monitoring and Control
HelioCloud, our remote monitoring platform, offers complete visibility into the operation of the HVAC system:
- Real-time monitoring of temperatures, pressures, and energy consumption
- Smart alerts via SMS, email, and WhatsApp
- Predictive analysis to identify trends and prevent failures
- Automatic reports on energy efficiency and PUE
- Integration with existing BMS systems
Certifications and Compliance
Our projects are developed in compliance with the main industry standards and certifications, including ASHRAE TC 9.9, Uptime Institute TIER Standards, TIA-942, and ISO 27001. We assist our clients in obtaining these certifications by providing all necessary technical documentation.
Sector Challenges
Modern racks with high-performance servers can dissipate over 30 kW each. AI and HPC racks reach 100 kW. HVAC systems need capacity and precision to handle this heat concentration.
Data centers cannot stop. An HVAC system failure can cause emergency shutdown in minutes, resulting in financial losses of millions per hour of downtime.
Power Usage Effectiveness (PUE) is the critical metric. HVAC represents 30-40% of total consumption. Each 0.1 PUE reduction can represent savings of hundreds of thousands per year.
IT infrastructure grows rapidly. The HVAC system must keep pace with this growth in a modular fashion, without interrupting existing operations.
Low humidity (<30% RH) causes electrostatic discharges that damage components. High humidity (>70% RH) causes condensation and corrosion. Control must be precise and constant.
Systems must allow preventive and corrective maintenance without affecting operations. N+1 or 2N redundancy is mandatory for TIER III and IV certifications.
Thermal load varies significantly throughout the day and according to server utilization. The system must respond quickly to these variations while maintaining stability.
Growing pressure for sustainable operations. Clients demand LEED certifications, eco-friendly refrigerants and carbon footprint reports.
Our Solutions
Precision HVAC units with ±0.5°C temperature and ±3% RH humidity control. Available in raised floor or ceiling supply configurations.
View ProductMagnetic levitation compressors for maximum energy efficiency (COP > 6.0). Zero friction, zero oil, minimal maintenance and lifespan over 25 years.
View ProductHigh capacity and proven reliability for large data centers. Superior IPLV efficiency and quiet operation.
View ProductSystems that leverage favorable weather conditions to reduce or eliminate mechanical cooling. Up to 50% energy savings depending on location.
View ProductCooling units installed between racks for high-density loads. Direct cooling at the heat source for maximum efficiency.
View ProductHeat exchangers installed on the rear door of racks. They capture heat directly at the server outlet before it disperses.
View ProductHot or cold aisle containment systems to prevent air mixing and maximize HVAC system efficiency.
View ProductIntegrated BMS system with 24/7 monitoring, real-time alerts, predictive analysis and energy efficiency reports.
View ProductRegulations and Standards
Benefits for Your Business
Success Case
Corporate TIER III Data Center - Campinas/SP
Design and implementation of a complete HVAC system for a TIER III data center of a major financial institution, with 500 kW initial IT load and expansion forecast to 1.5 MW. The solution included 3 x 200 TR chillers with magnetic levitation compressors in N+1 configuration, 12 CRAH units with raised floor supply, integrated free cooling system and full monitoring via HelioCloud.
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