Uponor Dynamic Energy Management Controls

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Along with all the functions of our previous controls, Uponor’s latest innovative controls are equipped with a unique new technology; Dynamic Energy Management, replacing the need for manual hydronic balancing. Instead of manual balancing for an estimated outdoor temperature, this system calculates the actual need in the house and adapts to those needs. This gives more even floor temperatures, faster system reactions with proven lower energy consumption than standard on/off systems in the market today. This feature is patented by Uponor and only exists in our systems.

Intelligent home heating – adapts to the climate and cuts your energy costs

• Adapts to minute-by-minute changes in your home

• Keeps every room at a constant temperature

• Uses up to 8% less energy

How quickly does DEM pay for itself?

What is DEM?

What are the benefits of DEM?

Do I need an electrician to install DEM?

How can I renovate an existing system with DEM?

What are the benefits of DEM?

Can DEM be used for heating and cooling?

How quickly does DEM pay for itself?

Can DEM be retrofitted?

Can I include a dew point sensor for cooling?

How does DEM save energy?

How many interfaces and loops can be used for one thermostat?

What is DEM?

Who may install the mandatory single room control?

What do I need for DEM?

How to work with DEM?

Can I use an antifreeze admixture within the Uponor MLCP system?

Can boilers be used in combination with the Uponor MLCP system?

What values should be observed for the quick mounting of heat supply lines?

Is it possible to use heating wires (de-icing) on the Uponor MLC system?

Can I install the MLC system in stables?

Do Uponor MLC pipes have to be insulated against condensation water?

Is it possible to mix galvanised steel and Uponor MLC pipes in a potable water installation?

Can the Uponor MLC pipe be used for any potable water quality?

How should a pressure test be applied for potable water installations?

Is it possible to freeze the Uponor MLCP system for repair purposes?

Can the Uponor MLC pipe be used in solar installations?

Can the MLC pipe system be used for transporting fully desalinated water(FD-water)?

What's the difference between PE-Xa, PE-Xb and PE-Xc pipes?

Do you offer a fitting free plumbing system?

What is an Uponor PE-X plumbing system?

What are Uponor Quick & Easy fittings?

The average connection time for Quick and Easy is 25 seconds, how is that possible?

How can tap water systems be disinfected?

Answer
1. General disinfection

With these rules you should not have problems in regard on bacteria or Legionella.
Therefore some general methods should be used.

UV radiation for disinfection

This method could be just used for one point in the system (mostly closed to incoming
point, means water meter). It could just make sure that the incoming fresh water will not bring any bacteria or Legionella into the system. It could not disinfect the entire system!
The UV radiation device must be designed according to the working temperature and volume flow (please see suppliers instructions).
It could be necessary to have more than one device in the system (for. e.g. Hospital,
laboratory,...)

Chemical disinfection

For chemical permanent disinfection mostly chlorine is used. For the general disinfection (long term) a maximum load of chlorine of not more than 0.100 mg/l should be used. Higher loads (in long term use) will effect the live time of the pipe system.

Thermal disinfection

According to DVGW worksheet W 551 (April 2004)
This worksheet is mainly written for the design and the usage of hot tap water systems.
There are described some general rules. For e.g.
- it must be possible that the hot water temperature could be 60°C at least once a
day (for big systems, means more than 400l)
- the water tank should be designed that the water will be heated up quickly (no
mixing in the tank between hot and cold water)
- if there are more than 3l in the hot water system, a circulation (hot water return)
should be used
- if circulation systems are used the temperature difference must not be more than
5K between hot water outlet of the tank and circulation return in tank
- in big facilities ( like hotel, hospitals, nursery homes, tank bigger than 400l, …)
the hot water temperature should be always 60°C in tank or heated up at least
once a day to 60°C. Accordingly it should be handled for small houses (one or two
family)
- the hot water tank should be not bigger than necessary
- not used parts of the system should be cut as close as possible to the main line

2. Short term disinfection
If your system is already contaminated (why ever) you have to disinfect the hole system by a method that should kill all bacteria and/or legionella. This could be also called a quick disinfection.
Please observe that a full documentation should be made and hand out to the customer/user of the system and maybe the responsible public authority.

Thermal disinfection
According to DVGW worksheet W 551 (April 2004)
- heat up the water temperature to 70°C, because with 70°C nearly all bacteria/Legionella and so on will be killed
- let the circulation pump run until inlet and outlet temperature on the hot water tank is (approx.) the same
- flush (fully opened valve) each hot water out let for at least 3 minutes with water temperature 70°C (at the outlet)
- make sure that nobody will hurt during this activity

Chemical disinfection
Also for the short term chemical disinfection mostly chlorine is used.
Before you start with the chemical disinfection you should “wash” the infected system at first. This should be done to wash out the bio film from the inner side of the tap water pipe. Because the bio film is often hiding the bacteria’s and Legionella. So if you don’t flush the pipes the chemical disinfection may not work proper.
The flushing should be done with an air/water mixture (please take care that it will be oil free air because we are working with the food stuff tap water). The flushing should not be done below 2 up to 3 m/s (you may use a buster pump to get this speed into the system). It is suggested to flush each valve for at least 1 minute.
After the flushing the system should be filled with the water chemical mixture (regarding the mixture please see below). The mixture should stay, under pressure, for some hours, maximum 12h, in the system.
After the residence time the system has to be flushed again to wash out the chemicals completely! This has to betested properly on each water outlet. Please obtain the local environmental protection rules.
Consider for some chemicals the responsible maximum concentration:
Chlorine bleaching (sodium hypochlorite NaOCl) max. 50 mg/l chlorine
Calcium hypochlorite (Ca (OCl)2) max. 50 mg/l chlorine
Chlorine dioxide (ClO2) max. 6 mg/l CIO2
If the water tanks should be disinfected separately they could be sprayed with a sodium hypochlorite mixture with 5g/l chloride. Therefore thy must be empty and dry. The chemical disinfection may effect the life time of the entire tap water system.
The safety rules for the work with high loads of chlorine must be always observed!
Please make sure that the local environmental protection rules will also be considered. Please check and follow also the chemical supplier rules!

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Has the Uponor PE-Xa pipe undergone extensive testing?

What is a PE-X pipe?

Why is an Uponor PE-X plumbing system a better choice for plumbing than copper or other metal materials?

What is the difference between the PEX used for Aqua and that used for Thermo?

Is it possible to mount both, a hot-and cold water pipe in an Aqua Twin pipe?

Are the pipes diffusion tight (oxygen tight)?

Must the pipe include an expansion joint?

What is the loss per meter of pipe?

Can a flexible pre-insulated pipe be mounted on a surface (UV-resistance)?

How should the pipe be mounted underground (sand layer, depth of mounting)?

Is it possible to mount the pipes on a surface?

Is it possible to repair the jacket pipe if damaged?