With Danfoss systems you never need to worry about legionella or insufficient or cold water in the bathrooms. Our domestic hot water solutions include water heaters that can be connected to multiple tanks as well as storage and charge systems, hot water valves that prevent legionella, temperature controllers and self-limiting heating cables that are used for temperature maintenance. When used together, these combine the demand for high performance, comfort, hygiene and resource efficient operation – even during peak loads.
Production of hot water
Production of hot water is done by one of our water heaters. These can be equipped with one or more storage tanks to provide enough hot water at peak loads. They can also be equipped with a storage charging principle. They meet hygienic, safety and temperature requirements and can be connected to different energy sources. Adding hot water valves and temperature controllers help prevent legionella. All together a high performance, comfortable, hygienic and resource efficient production of DHW is achieved.
Distribution of hot water
The hot water is then distributed to the water tap points. In most cases the size of the building requires a series of risers circulating the hot water. Our Thermal balancing valves ensure the proper hydronic balance that avoids long waiting times. As these control the water temperature they also avoid too hot water causing lime, corrosion and energy inefficiency. Normally these valves are set to a temperature that avoids legionella to grow.
Smart and energy efficient legionella risk reduction
The thermal balancing valves can be equipped with thermostatic or electronic disinfection modules, allowing periodic flushing of the system to kill the legionella bacteria. The electronic temperature registration system monitors all the temperatures and initiates the safe and energy efficient disinfection cycle. It also stores the temperature data for logging purposes. The electronic controller can be easy accessed on mobile devices using Wi-Fi or be integrated into Building Management Systems (BMS) for remote control, monitoring and alarm purposes.
Close to the water tap points, there is sometimes a need to lower the hot water temperature. Our hot water mixing valves ensure the outlet water temperature is safe for consumption.
Self-limiting heating cables provide power only where needed adapting output according to the ambient temperature. It helps to reduce water waste as you can get hot water immediately providing appropriate disinfection to suppress the Legionella bacteria.
How to balance domestic hot water systems?
What are the issues and challenges in domestic hot water systems in non-residential buildings?See why hydronic balancing is important, what type of balancing is the best and how that can solve the issues.
How we can help you
One partner with high DHW expertise
High performance and energy efficiency
Resource efficient operation
Reduced risk of legionella contamination
Lowest possible operating costs
Domestic hot water systems with tank
The water heaters with tank are suitable solutions for hospitals, sports arenas, hotels, apartment blocks and similar large buildings. The product range covers storage and charge systems which all combine the demand for high performance, comfort, hygiene and resource efficient operation.
The self-limiting heating cables for indoor are used for temperature maintenance of hot water supply and other fluids that need to maintain a certain temperature. The self-limiting capability of the cable ensures that the output of the cable increase or decrease according to ambient temperature. EChotwatt ensures hot water in all taps and savings when circulation of the whole pipe system is unnecessary.
Increased importance for safe Domestic Hot Water systems due to Covid-19
While the global community is very aware of the Covid-19 virus, another potentially fatal bacteria, Legionella, is causing more and more infections every year. Research even shows a relation between both infections. Read more about the increased risks in DHW systems due to Legionella and Covid-19 in this article.
NEW: NovoCon M, L and XL - Big news for fans of IoT solutions in smart building conceptsMonday, August 3, 2020
New NovoCon® M, L and XL digital actuators for AB-QM Pressure Independent balancing and Control Valves (PICV) complete the series of smart, digital, IoT actuators for hydronic HVAC applications.