Introduction: Growing Demand for Precision Cooling (PAC) in Data Centers
The digital transformation sweeping across finance, telecommunications, and enterprise sectors has made the data center the most critical asset for modern business. As server density and power consumption climb, so does the demand for environmental control that goes far beyond standard office air conditioning. The cost and risk associated with system downtime due to overheating or environmental instability are simply too high.
This has accelerated the need for Precision Air Conditioning (PAC). PAC systems are specifically engineered to provide continuous, year-round operation with tight control over temperature, humidity, and airflow, requirements that conventional cooling cannot meet. At Coolnet, we recognize that precision is the foundation of reliability. As an OEM with completely independent Research and Development and production, we offer a comprehensive portfolio of PAC solutions, all backed by our solid 1 to 2-year product quality guarantee, ensuring we remain your trusted data center solution provider.
Core Role and Advantages of PAC in Data Centers
The primary role of PAC in data center environments is to manage the substantial and concentrated sensible heat load generated by IT equipment while maintaining highly specific environmental conditions 24 hours a day, 7 days a week.
Unlike comfort cooling, Coolnet’s PAC systems offer critical advantages:
High Sensible Heat Ratio (SHR): Data centers generate dry heat; they don’t require dehumidification for comfort. Our PAC units are designed with a high SHR (typically 90% or greater) meaning nearly all the cooling energy is used to lower the air temperature, providing efficient and targeted cooling and maximizing energy efficiency.
Precision Control: We maintain strict control tolerances—Temperature is typically controlled within ±1℃, and relative humidity is controlled within ±5%. This prevents condensation (from high humidity) and static electricity (from low humidity), which are both highly damaging to sensitive electronics.
Continuous Operation and High Reliability: Our units are built with industrial-grade components and advanced system protection functions, including phase sequence detection and wide voltage input stability, ensuring uninterrupted cooling.
Coolnet’s Technical Strength and Experience in PAC Solutions
Our commitment to technological excellence and independent innovation is evident across our entire PAC product line. This technical strength ensures that the cooling infrastructure we provide is not only effective but also highly energy-efficient and scalable for future demands.
Our foundational product for small to medium-sized facilities and computer rooms is the Cool-Smart Series PAC (6-20kW) DX Unit. This series is built for superior reliability, high energy efficiency, and a long working life, making it ideal for telecom stations, equipment rooms, and smaller data centers. The Cool-Smart Series features a robust design that provides a total cooling capacity ranging from 6 to 20 kilowatts and a sensible cooling capacity ranging from 5.8 to 18.3 kilowatts across its models. We achieve this efficiency by employing high-efficiency scroll compressors, large air volume and a small enthalpy difference design, and an intelligent control system. This system incorporates a color touch screen display for real-time status and offers group control functions such as rotation and backup for seamless operation and maintenance.
Coolnet’s Overall Cooling Solutions as a Data Center Solution Provider
While our PAC units form the core of environmental control, Coolnet delivers comprehensive, integrated solutions as a full-spectrum data center solution provider. We understand that effective cooling must be integrated with the entire IT infrastructure.
Our offerings extend far beyond room-level PAC, encompassing:
Row-Level Cooling: For high-density environments, we offer the Cool-Row Series, which brings cooling directly to the server rack via hot/cold aisle containment, maximizing heat removal efficiency.
Integrated Solutions: We provide Micro Data Centers and Modular Data Centers, which integrate our cooling technology with UPS Power Systems, Power Distribution Units (PDU), and advanced monitoring systems (DCIM) into a single, prefabricated, and rapidly deployable solution.
Liquid Cooling: For the most demanding High-Performance Computing (HPC) and Artificial Intelligence workloads, we offer cutting-edge liquid cooling solutions, including cold plate and immersion technologies, to handle extreme heat loads with minimal PUE.
By offering a complete range from single PAC in data center units to full integrated data center architectures, we ensure our B2B partners have a single, reliable source for all their thermal management and power infrastructure needs.
Conclusion: Building an Efficient and Secure Data Center Environment Based on Coolnet PAC Technology
For any modern enterprise, the integrity of the data center is paramount. Downtime is not an option. By choosing Coolnet as your OEM partner, you are securing a solution built on the principles of precision, efficiency, and reliability.
Our independently engineered PAC units, like the Cool-Smart Series, ensure your sensitive IT equipment operates under optimal temperature and humidity conditions, safeguarding performance and longevity. Our comprehensive product portfolio demonstrates our strength as a full-service data center solution provider, ready to scale and adapt to any challenge, from small server rooms to hyperscale facilities. We are committed to empowering you with robust, energy-saving infrastructure, supported by our 1 to 2-year quality guarantee.







