Copper Silver Ionization Legionella Control and Compliance for Point of Entry (POE) or Domestic Hot Water (DHW)

Which type do You Need?

There are two facility potable water locations where you should consider installing Copper Silver Ionization application solutions for Legionella growth prevention or compliance. Depending on your own Legionella risk assessment results, you should consider either a Point of Entry (POE) or Domestic Hot Water (DHW). Both type of application are possible. A trained and certified CSIDefender® experts can work with you to determine which option is best for your facility requirements and then provide you with a detailed solution.

Legionella Water Treatment
in Domestic Hot Water (DHW)
PDF Brochure

dhw
Download DHW PDF

Legionella Water Treatment
in Point of Entry (POE)
PDF Brochure

poe
Download POE PDF

What is Domestic Hot Water (DHW) Only Copper Silver Ionization?

What is Point of Entry (POE) Copper Silver Ionization?

CSI-DHW systems are relatively smaller compared to CSI-POE systems and typically start at amperage capacity of 5 to 60 amps, the optional use of flow meters (not required in modern CSI technologies), and one to six “active” ionization chamber cells installed in parallel to each other. The number of installed chamber cells is directly linked to the overall daily domestic potable hot water usage load.

Each of the ionization chamber cells should have a dedicated output ionization power drive linked to an automated software-based Programmable Logic Controller (PLC). The CSI PLC should be able to automatically adapts to any potable water conditions that should also be linked to any building management system (BMS). The CSI-DHW solution can are easily installed on either the DHW return or supply side of the loop using standard commercially available plumbing components.

Facilities with multiple separate DHW zones returning to a common mechanical room (yet remaining separate at all times) can install more powerful “Multi-Zone” CSI controllers to lower the overall technology footprint and relative cost without compromising on performance, safety or reliability.

A point of entry water treatment application is installed on the facility potable water source with the express purpose of treating all of the incoming water before it goes into the facility’s water distribution network.

CSI-POE systems include larger amperage capability (30 to 160 amps), and at least three or more ionization chamber cells installed in parallel to each other that will provide instant copper silver ionization injection. Each chamber cell has its own individual output ionization power drive, which is monitored by one of our powerful CSI-POE software based controllers to automatically adapt to the variable daily water usage flow in real time.

When to Use DHW Only

When to Use POE Only

Some of the critical Legionella risk triggers that can justify the use of a CSI-DHW system include:

  • Incoming potable water temperatures < 68°F / 20°C,
  • Hot water temperature delivery < 125°F / 52°C,
  • Hot Water Maker Cold water mixing valves,
  • Possible dead legs,
  • Age of a facility,
  • Type of facility (Healthcare, Nursing Homes, Hotels),
  • Type of facility occupants,
  • Biofilm presence,
  • Known or possible Legionella issues,
  • Legionella risk assessment, such as ASHRAE188, recommends secondary DHW water treatment,
  • CMS Compliance (USA) for Healthcare and Nursing Home facilities.

Some of the critical Legionella risk triggers that can justify the use of a CSI-POE system include:

  • Facility incoming potable water temperatures above > 68°F/20°C,
  • Possible facility potable water stagnation areas,
  • Low facility occupancy (seasonal, temporary or permanent),
  • Alleged Legionella issues without fully knowing the origins or location of the problem,
  • Legionella risk assessment, such as ASHRAE188, recommends POE secondary water intervention is required.

Choosing the right CSIDefender® Copper Silver Ionization solution for your facility potable water network depends on a variety of factors. To ensure you get the solution that best meets your needs, talk to one of our experts.

Legionella Water Treatment
in Domestic Hot Water (DHW)
PDF Brochure

dhw
Download DHW PDF

Legionella Water Treatment
in Point of Entry (POE)
PDF Brochure

poe
Download POE PDF

Let’s talk about How CSI Defender® can keep your water safe