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Why Changing the BEMS on a Recotherm Swimming Pool AHU Is a Risky Decision

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We’ve recently seen a growing trend among larger companies to replace the original BEMS on their swimming pool air handling units (AHUs).
Namely to integrate them into a central building energy management system (BEMS). While this might seem convenient and efficient, it can actually lead to significant and costly problems.
Over 40 Years of Specialist Knowledge and Experience
At Recotherm, our BEMS is not just a standard component. Our controllers are the heart of our swimming pool ventilation systems, containing over 40 years of specialist knowledge and experience. Each control programme has been developed by environmental engineers who deeply understand the psychrometric principles of ventilating wet areas.
Swimming pool environments are uniquely challenging and require precise management of temperature, humidity and airflow to protect both the building and its users.
Unfortunately, we are often not notified when our original BEMS have been removed and replaced. In some cases, we only discover this at a routine service visit when we suddenly find we can no longer calibrate critical sensors or access key functions. In other cases, we receive an urgent call-out because the pool hall atmosphere is uncomfortable or not performing as expected.
This puts us in the difficult position of having to explain that the unit is no longer capable of doing what it was designed to do. It’s a bit like buying a high-performance sports car and then swapping the engine for one from a small family hatchback; it might technically run but it will never deliver the performance, efficiency or reliability you paid for.

When a Recotherm BEMS is replaced and the AHU is integrated into a central BEMS, the complex needs of the pool environment are often not fully understood by generalist BEMS operatives. This can result in:
- Reduced indoor air quality, leading to an uncomfortable and potentially unhealthy pool hall atmosphere.
- Increased wear and tear on components, leading to more frequent breakdowns, higher maintenance costs and a reduced lifespan of the AHU.
- Damage to the building fabric, such as corrosion and damp issues.
- Higher energy consumption, which means increased operational costs.
Although we strongly advise against changing our original BEMS, if you wish to link your Recotherm AHU to your central BEMS system, we advise that you get in touch before your BEMS company removes our controller. We are more than happy to talk them through how to seamlessly integrate their system with ours.
Decades of Carefully Developed Expertise
When you choose Recotherm, you are investing in decades of carefully developed expertise specifically designed to protect your building, reduce your energy bills and provide a safe and pleasant swimming environment. Our systems have been BEMS compatible for decades and we can ensure you get the convenience of central monitoring without sacrificing the specialist control your pool environment requires.
Ultimately, the initial perceived convenience of central control can turn into a much larger and more expensive problem down the line.
The controller you have paid for is there to do one thing exceptionally well: manage your pool hall environment properly and efficiently.
Trust it to do what it was designed to do.