Domestic hot water for commercial buildings

  • Overview
  • Related products
  • Learning
  • Articles
  • News

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 and temperature controllers. 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.

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

Comfort

Hygiene

Resource efficient operation

Reduced risk of legionella contamination

Lowest possible operating costs

MTCV Thermal balancing valves with CCR2+ electronic controller

Establish safe and energy efficient DHW systems and control them remotely on a mobile device.

Related products

  • Self-acting temperature controllers- Danfoss
    Self-acting temperature controllers
    Thermostatic temperature controllers are used to control the flow temperature in instantaneous/storage domestic hot water and heating systems. In multi-family houses and commercial buildings, they are used for hot water systems and for return temperature limitation in district heating applications.
  • Domestic hot water systems with tank- Danfoss
    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.
  • Substations- Danfoss
    Substations
    Substations are house heating systems or units in apartments that handle heat transfer from district heating pipes into your home to get hot water and heat on demand.
  • Danfoss Thermal balancing valve MTCV
    MTCV with CCR2+
    MTCV Thermal balancing valves provide a dynamic, temperature based, balancing solution for drinking water applications. Combined with the CCR2+ a smart and energy-efficient electronic control solution for monitoring and disinfecting DHW systems is established.
  • Rotary valves- Danfoss
    Rotary valves
    Rotary valves are primarily designed for regulation of flow and temperature in heating systems where a certain leakage can be accepted and where a defined control characteristic is not required.

Learning

Articles

  • 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.

News

  • AB-QM 4.0 Flexo connection set voor Fan Coil Units
    NEW: AB-QM 4.0 Flexo
    Monday, October 19, 2020
    Read more about our new, compact, 8-in-1 PICV solution for fast installation, flushing and servicing of Fan Coil Units in hydronic HVAC systems as used in public and commercial buildings.
  • NovoCon® M, L and XL digital actuators
    NEW: NovoCon M, L and XL - Big news for fans of IoT solutions in smart building concepts
    Monday, 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.
  • NEW: AB-QM 4.0 Pressure Independent balancing and Control Valve (PICV) for smart buildings
    Friday, October 11, 2019
    Danfoss AB-QM 4.0 replaces AB-QM Pressure Independent balancing and Control Valves (PICVs)