Racun: Intelligent heating and cooling water treatment for maximum operational reliability

In many heating and cooling systems, water is still regarded as a secondary operating medium. Yet water quality plays a decisive role in determining efficiency, service life—and, above all, the operational reliability of the entire system.

Because one thing is clear: A failure rarely occurs suddenly. It usually announces itself over the course of months—behind the scenes. Corrosion, magnetite formation, or rising conductivity are therefore not isolated occurrences, but early warning signs of deeper-seated problems in the system.

Our new Racun series was developed to address precisely this: not only water treatment, but also the continuous monitoring, stabilization, and protection of heating and cooling systems. With proactive fault alerts, real-time monitoring, and complete documentation of all operating data via the UWS Cloud Portal, a level of safety is achieved that sets new standards.

Especially in areas where failures have serious consequences—such as industrial plants, hospitals, local heating networks, or data centers—Racun offers a solution that not only ensures water quality but also actively contributes to operational safety.

Why continuous water treatment is crucial today

Modern systems are more sensitive to water quality than ever before. Different materials, compact heat exchangers, and high power densities mean that even small deviations can have noticeable long-term consequences—ranging from corrosion and magnetite formation to sludge buildup and malfunctions, all the way to efficiency losses and increased warranty risks.

Standards such as VDI 2035, ÖNORM H 5195-1, or SWKI BT 102-01 therefore define clear requirements for water quality. What is crucial here is not only the initial filling, but above all the sustained compliance with these values during ongoing operation.

Racun: Treatment, Monitoring, and Protection in a Single System

The Racun series combines functions that are still often treated separately in many projects. Desalination and pH stabilization via mixed-bed resin, continuous conductivity monitoring, magnetite separation, fine filtration, and—depending on the configuration—automatic makeup feed all work together in a comprehensive system.

This results not simply in a water treatment device, but in a solution that continuously monitors water quality and actively contributes to maintaining the desired state within the system.

Racun 100 / 300

The Racun series comprises water treatment systems that reliably ensure consistently stable water quality, even in complex and highly sensitive facilities. Wherever system failures can have serious consequences – in industrial plants, hospitals, local heating networks or data centres – Racun offers a level of reliability that sets new standards.
To the product

Intelligent mixed-bed resin detection for assured water quality

The quality of water treatment depends not only on the process itself, but also significantly on the mixed-bed resin used.

This is because not every resin meets the requirements of modern heating and cooling systems. While simple resins merely achieve desalination or softening, high-quality solutions like our Vadion pH-Control go a decisive step further:They also ensure targeted pH stabilization and thus optimal conditions within the system.

An integrated detection system—using a Vadion tag (NFC)—ensures that the intended, high-quality mixed-bed resin is actually used in the cartridge. The system thus not only detects that a resin is present, but also whether it meets the requirements for standard-compliant and safe water treatment.

The background is relevant to practice:
During service or refills, there is always a risk that unsuitable or inferior resins will be used. The consequences are often not immediately apparent, but they have a long-term impact on water quality and thus on the operational safety of the entire system.

The integrated resin detection minimizes precisely this risk.

The Racun series ensures that:

• only suitable mixed-bed resin is used
• the desired combination of desalination and pH stabilization is achieved
• water quality consistently meets requirements

This actively safeguards a factor that is often underestimated:
the quality of the operating materials used.

Or to put it another way:

👉 The Racun series not only monitors the process—it also ensures that the foundation for it is right.

Mischbettharz Vadion pH Control

Our Vadion pH-Control is a mixed-bed resin that not only demineralizes the water to < 100 μS/cm (corresponding to 0–3 °dH), but also ensures that the pH value of the fill water remains within the required range.
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Maximum operational reliability: real-time monitoring and proactive fault alerts

Operational reliability isn’t just achieved in the event of a malfunction, but through transparency during ongoing operations. This is precisely where one of the key advantages of the Racun series lies.

Water quality is continuously monitored in real time directly within the system. Relevant parameters such as conductivity are not only measured but also evaluated in relation to the current system status. The difference from purely sporadic checks is significant: The system not only provides data but also detects deviations early on and reports them before they result in noticeable efficiency losses or malfunctions.

This fundamentally changes plant operations. Random spot checks give way to continuous condition monitoring. Reactive intervention becomes proactive plant management. For operators, this means greater planning reliability, higher system availability, and significantly better response capabilities in day-to-day operations.

Early detection instead of late response

Most problems in heating and cooling systems develop gradually. That is precisely what makes them so critical. Without continuous monitoring, changes often go unnoticed for a long time—for example, when conductivity increases due to makeup water or small leaks, magnetite and suspended solids build up in the system, or the system’s behavior slowly deviates from the target state.

The Racun series detects such developments not only once damage or failures have already become visible, but already as they are unfolding. Through continuous evaluation of the measurement data, trends and anomalies can be identified early on. At the same time, the system generates targeted alerts, for example, when limit values are exceeded, feedwater volumes are unusual, a resin change is due, or operating conditions fall outside the target range.

The practical benefit is clear: problems no longer need to be laboriously sought out. They become visible before they become critical. This provides confidence in decision-making, simplifies maintenance planning, and reduces unplanned service calls.

Real-time data for informed decisions

Thanks to continuous measurement, up-to-date and reliable information is available at all times directly from the system’s ongoing operation. Not only are individual measured values visible, but also the condition of the system as a whole: current water quality, treatment status, maintenance requirements, and the plant’s performance over time.

This data foundation enables condition-based maintenance instead of rigid maintenance intervals. Measures can be taken when they are actually necessary—not too early, but also not too late. For operators, this means higher system availability, more efficient service calls, and reduced downtime.

Decisions are thus no longer based on assumptions or empirical values alone, but on real operating data.

Clean systems as the foundation for stable plants

In addition to water treatment using mixed-bed resin, mechanical cleaning is also a crucial factor for operational reliability. The Racun series helps to continuously remove iron-containing particles and suspended solids from the system.

This reduces the risk of fouled heat exchangers, blocked components, and gradual performance losses. A key prerequisite for stable and fail-safe systems.

Energy-efficient and quiet operation

Efficiency in heating and cooling systems means not only optimal water quality but also operation of the technology that is as resource-efficient as possible.

To this end, the Racun series is equipped with a speed-controlled PWM pump that dynamically adjusts its output to the actual demand in the system. Instead of running continuously at full power, the pump operates only as strongly as necessary. This reduces energy consumption during operation while ensuring consistent and controlled treatment.

This concept is complemented by high-quality insulation of the components. It minimizes heat loss and helps ensure that the system remains quiet.

The result is a system that not only impresses technically but also proves its worth in everyday use: efficient in energy consumption, quiet in operation, and thus ideal for use in sensitive environments such as mechanical rooms, office buildings, or residential complexes.

Make-up water under control instead of a source of risk – including leak protection

In practice, makeup water is one of the most common factors affecting water quality. Even small amounts of untreated make-up water can increase conductivity, shift the pH value, and trigger corrosion processes. The situation becomes particularly critical when make-up water is added unnoticed or continuously—for example, due to small leaks.

This is exactly where the Racun series comes in. Depending on the model, makeup water is integrated into the overall system in a controlled manner. This ensures that only treated water enters the circuit, make-up water volumes are continuously monitored, and anomalies are detected immediately.

A particular added value lies in leak protection: Unusual make-up water volumes serve as an early indication of leaks in the system. As a result, problems are detected much earlier, rather than only after pressure losses, water damage, or the effects of corrosion have already become visible. This reduces risks, lowers energy losses, and prevents unnecessary deterioration in the quality of the system water.

Instantly online—even in the basement: integrated eSIM

In practice, the digital connectivity of systems often fails not because of the technology, but because of the infrastructure. Missing network connections, limited access to IT, or complex coordination often delay commissioning.

The Racun series takes a different approach here.

With the integrated eSIM, the system is online immediately after installation—regardless of existing IT infrastructure or local networks. A connection to the UWS Cloud Portal can be established without additional cabling or configuration.

This is a decisive advantage, especially in typical installation scenarios such as basements, technical rooms, or existing systems. The system is immediately accessible, data is transmitted directly, and fault messages are available without delay.

This significantly reduces installation effort and enables a quick transition to digital system monitoring—without dependence on external systems.

Digital integration and transparent system statuses

For maximum operational reliability, it is no longer sufficient today to monitor systems only locally. System statuses must be centrally visible, analyzable, and documentable. The Racun series supports common interfaces such as Modbus TCP/RTU, MQTT, as well as Wi-Fi or Ethernet, depending on the configuration.

This allows operational data to be collected centrally, systems to be monitored across multiple locations, and messages to be evaluated in real time. A single device thus becomes an integral part of modern, networked plant technology.

Proactive fault notifications via the UWS Heaven7 cloud portal

In combination with the UWS Cloud Portal Heaven7, a central platform for monitoring, message management, and documentation is created. All relevant information from the system is automatically consolidated there and evaluated in a structured manner.

The key advantage lies in the proactive alerting logic: limit violations, unusual feed quantities, resin consumption, or indications of potential leaks are not only detected locally but also made visible centrally. The system alerts the operator before they need to react.

Especially in complex or critical applications, this transparency creates enormous added value because decisions can be made faster, more informed, and based on current data.

Digital documentation: traceable and available at any time

The connection to the cloud portal simultaneously enables continuous documentation of plant operations. Measurement values, trends, operating states, maintenance events, and fault messages are automatically recorded and stored in a traceable manner.

This creates transparency during ongoing operation, improves traceability for operators and clients, and supports standards-compliant documentation, for example in the context of VDI 2035.

From individual devices to a networked system

The combination of Racun and the UWS Cloud Portal creates a seamless process:

measure – treat – replenish – document

As a result, water treatment is no longer viewed as an isolated, standalone measure, but as an integral part of modern plant operations. Conditions are detected, data is processed, information is provided, and concrete measures are supported—automatically, transparently, and across locations.

For plants of all sizes

The Racun series covers a wide range of applications—from smaller technical systems to complex building structures.

This allows the solution to be effectively used in both smaller applications and particularly demanding and critical plant designs.

Racun 100 / 300

The Racun series comprises water treatment systems that reliably ensure consistently stable water quality, even in complex and highly sensitive facilities. Wherever system failures can have serious consequences – in industrial plants, hospitals, local heating networks or data centres – Racun offers a level of reliability that sets new standards.
To the product

Conclusion: Reliability through control and transparency

Heating and cooling systems do not fail without warning. The decisive changes occur in the water—often gradually, often unnoticed, but with noticeable consequences for efficiency, function, and operational reliability.

Those who detect these changes early and manage them effectively lay the foundation for stable and economical operation. This is exactly where the Racun series comes in: with continuous monitoring, automatic response, controlled makeup, clean filtration, digital integration, and proactive fault notifications via the UWS Cloud Portal.

In this way, water is no longer an invisible risk factor, but a measurable, controllable, and safety-relevant component of the entire system.