HVAC
CASE STUDY

Conductivity measurement and water quality monitoring in HVAC systems – case study

Managing water quality in HVAC systems is a significant challenge, as even small changes in conductivity can lead to reduced efficiency and equipment damage. In this case study, we show how proper monitoring and control of conductivity affects system performance, energy efficiency and equipment longevity. We outline the relationship between conductivity levels and HVAC system efficiency, discuss how to identify and resolve water quality issues and share our experience in implementing reliable monitoring systems. Using the example of our client, who struggled with critical issues in their infrastructure, we show how intelligent conductivity control solutions can revolutionise HVAC system performance and improve water quality management. Read more!

Why is conductivity measurement crucial in HVAC systems?

Our experience shows that conductivity measurement is a very effective indicator of water quality and HVAC system performance. By implementing conductivity control, you can protect your equipment and ensure optimal operational efficiency.

Conductivity measurement plays a key role in heating and cooling systems for several reasons:

  • Prevention of scale build-up and corrosion: Monitoring conductivity helps to prevent damage to system components and drops in performance.
  • Reducing microbial growth: Maintaining appropriate levels of conductivity reduces the growth of micro-organisms in the water circuits of HVAC systems, ensuring system cleanliness.
  • Protection of expensive equipment: Conductivity control protects equipment, extending its life and reducing maintenance costs.
  • Meeting environmental standards: Proper conductivity monitoring helps to comply with environmental regulations, promoting sustainability.
  • Process optimisation: Keeping water quality within optimal ranges improves overall system performance.

How to ensure optimal water quality in HVAC systems? The customer challenge

We worked with a leading manufacturer of air handling units (AHUs) and modular data centres to solve a complex water quality management problem. The client serves demanding environments that require exceptional precision in HVAC systems, particularly in the context of conductivity control.

The client has operated in environments such as:

  • Cleanrooms
  • Semiconductor manufacturing plants
  • Pharmaceutical plants
  • Large data centres

The HVAC client was struggling to maintain ideal levels of water conductivity while meeting stringent industry standards. Standard conductivity management methods were proving insufficient. They needed a solution that would provide precise control of water quality parameters while supporting their operational efficiency and sustainability goals.

How to measure conductivity in HVAC applications? Our solution

To address these challenges, we implemented a comprehensive conductivity control solution based on JUMO's advanced technology. The solution consisted of three key components:

  • JUMO CTI-500 inductive conductivity transmitter: designed to measure conductivity in harsh environments with deposits and contaminants, equipped with temperature compensation and an intuitive LCD interface.
  • JUMO dTRANS CR 02: Advanced multi-channel system supporting conductivity sensors, temperature probes and specific resistance sensors, with RS485 and Profibus-DP connectivity.
  • JUMO BlackLine conductivity sensor CR-GT/-EC/-GS: A versatile solution optimised for various applications, from drinking water to reverse osmosis systems.

These components have been configured according to the customer's requirements, allowing maximum performance with flexibility in various operating scenarios.

From left: JUMO CTI-500 inductive conductivity sensor (202755), JUMO dTRANS CR 02 conductivity transmitter and controller (202552), JUMO BlackLine CR-GT/-EC/-GS conductivity sensor (202922)

How has conductivity control improved efficiency in HVAC installations? Customer benefits

Our solution significantly improved the performance of the client's HVAC systems. Key benefits included:

  • Optimisation of asset management: Significant reduction in water consumption and lower operating costs.
  • Improved equipment protection: 24/7 conductivity monitoring prevented costly repairs.
  • Meeting environmental standards: Green practices enabled compliance with stringent regulations.
  • Tailored performance: Every element of the system was tailored to the needs of the industry.

Continuous monitoring and automated controls set new standards for HVAC water quality, supporting the customer's green initiatives and improving operational efficiency.

Need more information?

If you have questions about measurement sensors and automation systems for HVAC, you can contact us via this form.

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About the author

My name is Ewelina Szmit and I have been working in content marketing for several years, combining my professional skills with my passion for writing. I am convinced that even the most technical topics can be presented in an interesting and accessible way for everyone. Outside of work, I unleash my creativity by creating newspaper collages. I like to spend my free time being active, walking my dog or running.



Ewelina Szmit

Author

Ewelina Szmit - Content specialist +48 71 339 32 94 Ewelina.Szmit@jumo.net +48 71 339 32 94


Katarzyna Tracz

Technical specialist

Katarzyna Tracz - Inside Sales Engineer +48 71 339 32 86 Katarzyna.Tracz@JUMO.net +48 71 339 32 86

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