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Cooling for data centres & computer rooms 


In today's technology-driven world, server rooms are the beating heart of businesses, hosting crucial data, applications, and services. To ensure their uninterrupted operation, maintaining the optimal temperature within these spaces is paramount.

In a world where data is everything, make sure your server room is in the hands of experts who understand its significance. Contact Cold Control today to discuss your server room cooling needs, and let us ensure the stability and reliability of your digital assets.

Air Con For Server Rooms




Common Questions About Server Room Air Con

As data continues to play an ever-increasing role in our lives, the importance of reliable and energy-efficient air conditioning in server rooms cannot be overstated. If you manage or work with data centres, investing in state-of-the-art AC systems is not just an option – it's a necessity for ensuring the continued success and reliability of your operations.

What does CRAC mean?

CRAC, an acronym for Computer Room Air Conditioning, and refers to the cooling systems implemented in server rooms and data centres. These systems are essential for cooling servers, which emit substantial heat. The term CRAC serves as a broad descriptor encompassing all cooling systems employed to maintain server temperatures, encompassing a wide array of designs and technologies.

Do Server Rooms Need Air Conditioning?

Absolutely, server rooms require dedicated air conditioning. Unlike standard office spaces, server rooms house racks of powerful servers and networking equipment that generate a substantial amount of heat. Without proper cooling, these devices can quickly overheat, leading to system failures, data loss, and costly downtime. Air conditioning systems are designed to remove heat efficiently, ensuring servers operate at their best.

Why Do Server Rooms Get So Hot?

Server rooms get hot due to the continuous operation of servers and networking equipment, which generate heat as they process data and run applications. The more powerful the equipment and the denser the configuration, the more heat is generated. Without proper cooling systems in place, this heat can quickly accumulate and lead to overheating.

What Temperature Should a Server Room Be in the UK?

The recommended temperature range for a server room in the UK is typically between 18°C (64°F) and 24°C (75°F). This range ensures that the equipment operates within safe thermal limits. Humidity levels should also be maintained between 45% and 55% to prevent static electricity build up and protect sensitive components.

What Happens If a Server Room Gets Too Hot?

If a server room becomes too hot, several critical issues can arise:

Equipment Failure:

Excessive heat can cause servers and networking equipment to malfunction or shut down unexpectedly.

Data Loss:

Overheating may result in data corruption or loss, which can have severe consequences for a business.

Reduced Lifespan:

Prolonged exposure to high temperatures can significantly reduce the lifespan of server hardware.

Increased Energy Costs:

Inefficient cooling can lead to higher energy bills, as cooling systems work harder to maintain temperatures within an acceptable range.

What Are the AC Requirements for a Server Room?
The AC requirements for a server room are specific and include:


Data centres are designed to operate around the clock, without interruption. To achieve this, redundancy is built into every aspect, including AC systems. Multiple AC units, backup generators, and cooling strategies are put in place to ensure that even in the event of a system failure, the data centre remains operational.

Precision Control:

AC systems should offer precise temperature and humidity control to maintain optimal conditions.

Air Filtration:

Integrated air filtration systems help remove dust and particulate matter, preserving equipment and air quality.

Monitoring and Alerts:

Remote monitoring and alert systems can quickly notify IT staff of any deviations from optimal conditions.


With the increasing demand for data-driven applications and cloud computing services, data centres have become the backbone of our modern world. However, to ensure their seamless operation, one critical component plays a pivotal role – air conditioning.

The importance of air conditioning (AC) in server rooms and how it contributes to their efficiency, reliability, and overall performance is key to modern business. We begin every project with a thorough assessment of your server room's layout, size, and heat load. Understanding these critical factors allows us to design a cooling solution that's both efficient and cost-effective.

There's no one-size-fits-all solution for server room cooling. We tailor our AC system installations to your unique requirements, taking into account factors like the room's location, insulation, and existing infrastructure.

Temperature Control:

The most critical aspect of AC in data centres is temperature control. Electronic components, such as servers and networking equipment, generate a substantial amount of heat during operation. To prevent overheating and subsequent equipment failure, maintaining a precise and consistent temperature is crucial. AC systems in server rooms are designed to provide this temperature control, ensuring that servers operate optimally.

Humidity Management:

In addition to temperature control, humidity management is equally important. High humidity can lead to condensation and electrical shorts, while low humidity can cause static electricity build up and damage sensitive equipment. AC systems in data centres are equipped with humidity control mechanisms, ensuring that the environment remains within safe and optimal humidity levels.

Air Filtration:

Server are not just filled with electronic equipment; they also house valuable data. Dust and particulate matter can be detrimental to both equipment and data integrity. AC systems incorporate advanced air filtration to remove contaminants from the air, safeguarding equipment and maintaining a clean, dust-free environment.

Energy Efficiency:

As data centres grow in scale, so does their energy consumption. Efficient AC systems play a critical role in managing this energy usage.


The scalability of AC systems is vital as server centres expand to accommodate growing demands. Modular AC solutions allow data centre managers to add or adjust cooling capacity as needed, ensuring that the cooling infrastructure keeps pace with evolving requirements.

AC For Data Centres





Brilliant company, installed new air conditioning when ours had broken. Their staff were really friendly and made sure we were happy before leaving. Thank you.



As data continues to play an ever-increasing role in our lives, the importance of reliable and energy-efficient air conditioning in server rooms cannot be overstated. If you manage or work with data centres, investing in state-of-the-art AC systems is not just an option – it's a necessity for ensuring the continued success and reliability of your operations.


As a trusted business partners of Daikin UK, you can be assured that Cold Control will deliver high standards of installation and expertise. Our D1 partner status means that we are able to offer up to seven year warranty (subject to conditions) to our customers.  

Strategically positioned in Hampshire, Cold Control provides installation services for server rooms and data centres across, Hampshire, Surrey, London and throughout the South. Additionally, we have team of engineers that operate throughout the UK.




Following a site survey our specialist server room air conditioning team will discuss your requirements and design the  system most suitable for your server room requirements.


As accredited installers for the world's leading manufacturers, Cold Control provide cutting-edge solutions offering the greatest energy efficiency for your business.


 To ensure your system operates at optimum efficiency we provide a maintenance program which entitles you to a guaranteed 24-hour emergency repair service in the unlikely event of breakdowns

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