Combined Chlorine Explained for HVAC Professionals

As HVAC professionals, understanding the intricacies of water quality is essential, especially when it comes to systems that utilize chilled or hot water. One key concept in water treatment that demands attention is combined chlorine.

What is Combined Chlorine?

Combined chlorine refers to the amount of chloramine or chloro-organic compounds present in water. This form of chlorine is created when chlorine used for disinfection reacts with organic matter in the water. While disinfection is a critical process, the by-products can impact water quality and system efficiency.

Importance of Monitoring Combined Chlorine

For HVAC systems, high levels of combined chlorine can lead to:

• Corrosion: Chloramines can corrode metal components, damaging pipes, coils, and valves.
• Odor Issues: Unpleasant odors may arise, impacting indoor air quality.
• Reduced Efficiency: Systems may operate less efficiently with poor water quality, leading to increased energy costs.

Ways to Manage Combined Chlorine

To ensure optimal performance of HVAC systems, professionals should consider the following:

• Regular Testing: Implement a routine testing schedule for water quality, focusing on total chlorine and free chlorine levels.
• Water Treatment Solutions: Employ methods such as activated carbon filtration or reverse osmosis to reduce combined chlorine levels.
• System Maintenance: Regularly flush systems and maintain components to prevent build-up of chloramines and other harmful compounds.

Conclusion

Understanding combined chlorine and its impact on HVAC systems is critical for maintaining water quality and system efficiency. By monitoring and managing combined chlorine levels, HVAC professionals can provide better service, improve system longevity, and enhance indoor air quality for their clients.

Stay informed and proactive in your water management practices to ensure the best outcomes for your HVAC systems.