The Importance of Cooling in Modern Data Centres
Effective data centre cooling is essential for maintaining reliable IT infrastructure, controlling heat build-up and supporting increasingly dense computing environments. As rack power densities rise, cooling systems need to work closer to the source of heat while maintaining consistent airflow across the data hall.
RACKEON Cooling Solutions for Modern Data Centres
RACKEON cooling solutions available from Telenco UK include both in-row and rear-door technologies, providing different approaches to managing heat within modern and high-density data centre environments.
By positioning cooling closer to the IT equipment generating the heat, these systems can support more effective thermal management while helping data centre operators respond to increasing rack densities.
RACKEON In-Row Cooling Unit – 40kW
The RACKEON In-Row Cooling Unit is designed to sit directly between server racks, delivering precision cooling close to the source of heat.
With cooling capacity of up to 40kW, it is suitable for high-density server rooms and data centres using hot aisle or cold aisle configurations.
- Up to 40kW precision cooling capacity
- Installed directly between server racks
- Targets heat close to the source
- Helps reduce localised hot spots
- Supports hot aisle and cold aisle architectures
- Modular and scalable installation
RACKEON Rear Door Cooling Unit (RDX) – 100kW
The RACKEON RDX is an active rear-door cooling solution designed for demanding server rack and high-density computing environments.
Its air-to-liquid heat exchanger captures heat from rack exhaust air and transfers it to the building water circuit, helping prevent excess heat from entering the wider server room.
- Up to 100kW cooling capacity
- Active rear-door cooling design
- Air-to-liquid heat exchanger technology
- Integrated high-efficiency fans
- Designed for high-density racks
- Compatible with standard server rack environments
Why Is Data Centre Cooling So Important?
Servers, switches, storage systems and other active equipment continuously generate heat during operation. Without effective thermal management, this heat can accumulate around racks and create hot spots, placing additional stress on critical equipment and increasing the demand placed on traditional room cooling systems.
A well-designed cooling strategy helps maintain stable operating temperatures, supports reliable equipment performance and enables data centre operators to make better use of available rack capacity.
Protect Critical Equipment
Controlled temperatures and airflow help reduce thermal stress across servers, networking equipment and storage infrastructure.
Support Higher Rack Density
Targeted cooling allows more heat to be managed within concentrated rack environments, supporting modern high-density deployments.
Improve Cooling Efficiency
Cooling closer to the source can reduce reliance on broad room-level cooling and improve overall thermal management.
The Challenge of Increasing Rack Density
Modern data centres are placing more compute power into smaller footprints. High-density server racks, cloud infrastructure, AI workloads and high-performance computing can all create significant thermal loads within individual rows or cabinets.
As heat density increases, traditional perimeter cooling alone may not provide the most effective way to manage localised hot spots. Moving cooling closer to the racks can provide a more targeted approach and help maintain consistent temperatures throughout the data hall.
Targeted data centre cooling places thermal management closer to the equipment generating the heat. This can improve airflow control, reduce hot spots and support higher-density infrastructure without relying solely on room-wide cooling.
In-Row Cooling vs Rear-Door Cooling
The most suitable cooling approach depends on rack density, infrastructure layout and the amount of heat that needs to be removed from each part of the data centre.
| Feature | RACKEON In-Row Cooling | RACKEON Rear-Door Cooling |
|---|---|---|
| Cooling Capacity | Up to 40kW | Up to 100kW |
| Installation | Between server racks | Rear-mounted to the server rack |
| Cooling Approach | Precision inter-rack cooling | Active rear-door air-to-liquid cooling |
| Heat Management | Targets cooling directly within the rack row | Captures rack exhaust heat before it enters the room |
| Typical Environment | High-density rows, containment and server rooms | Very high-density racks and computing environments |
Cooling as Part of the Complete Data Centre Infrastructure
Cooling should not be considered in isolation. Effective data centre thermal management works alongside server racks, containment systems, airflow management, power distribution and structured cabling.
Correct rack layout and airflow control help ensure that cooled air reaches IT equipment efficiently while heated exhaust air is removed or contained. Choosing an appropriate cooling architecture early in the design process can therefore support both current infrastructure and future expansion.
Choosing the Right Data Centre Cooling Solution
In-row cooling can provide a flexible solution where targeted cooling is required across a row of racks, while rear-door cooling can offer significantly greater cooling capacity directly at individual high-density cabinets.
The right solution will depend on rack load, available chilled-water infrastructure, containment design and anticipated future power density.
Explore RACKEON Data Centre Cooling
Telenco UK supplies RACKEON cooling solutions for modern data centre environments, including precision in-row and high-capacity rear-door cooling systems.
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