Legio Zon Series **No longer available, for reference only**

Zero Tolerance for Legionella!

Chlorine Dioxide is rapidly gaining acceptance, particularly in the control of Legionella and other bacteria in potable water used in public buildings (i.e., hospitals, hotels or healthcare facilities). With the new ProMinent® Legio Zon system, the requirements of smaller and mid-sized buildings can be reliably handled.
ProMinent® Legio Zon can generate up to 10 g/hr of chlorine dioxide and can dose in proportion to the flow of the water source. The intelligent operation and maintenance concept enables safe, simple and reliable operation, as well as easy and cost-effective maintenance. The total process management system is also suitable for intermittent operation.

Features & Benefits

  • Outstanding Legionella protection with the proven chlorite/acid process for small and mid sized buildings
  • Up to 10 g/hr chlorine dioxide generation in batch process mode
  • Safe, on-site generation: No need to store or transport dangerous chemical disinfectants!
  • Equally suitable for continuous and intermittent operation
  • High stability of the generated chlorine dioxide solution lasting over several days
  • Integrated metering pumps for accurate solution dosing
  • Direct control by means of contact water meter or inductive flow meter

Legionella control for:

  • Healthcare Facilities
  • Hospitals
  • Controlling waterborne pathogens
  • Destruction of Biofilms
  • Cooling towers
  • Breweries
  • Disinfection of potable water



Electrical supply 115/230 V, 60 Hz
Protection class IP 65
Water meter input contact water meter with reed switch or Hall effect sensor (integrated supply voltage +11 V, 2 mA), pulsed output  0.1 - 10 L/pulse or inductive flow meter (open collector) with frequency output up to 10 kHz (pulse width > 20 microseconds)
Pause input for volt-free contact
External fault input for volt-free contact
Operational message output relay contact 115 V, 3 A
Warning message ouput relay contact 115 V, 3 A
Alarm message ouptut relay contact 115 V, 3 A
Operation water 43.5-87 psig (3-6 bar), hose connection 1/4”
Batch volume approx. 0.2 gallons (0.8L)
ClO2 stock solution concentration 2,000 ppm
Operation type continuous or intermittent

Models (Legio Zon)

Type Dosing Capacity Max operating pressure Capacity of ClO2 dosing pump Operating Temp Dimensions (HxWxD) Unit Weight Power consumption (max.)
(g/h) (psi) (°F) (inches) (lbs) 115/230 V (amp)
CDL5 0-5 145 1 gph (72.5 psi) 50 - 104 26” x 22” x 12” 53 8.4-2.7
CDL10 0-10 102 2 gph (51 psi) 50 - 104 26” x 22” x 15” 62 8.4-2.7


  • Water meter (contact or frequency)
  • External digital input (can be configured for pause, shock dosage, high dosage or manual)
  • External fault


  • Operating alarm relay
  • Warning relay
  • Fault alarm relay


Cut Sheet: Legio Zon Series | Part #: 7750250 | Updated: 8/16/10


Drawing: Parts Drawing Legio Zon | Part #: None | Updated: Unknown

Manuals And Instructions

Declaration: EC Declaration English | Part #: None | Updated: Unknown
Manual: Legio Zon CDLa Manual English | Part #: 986802 | Updated: 3/6/14
Manual: Legio Zon Service Kits | Part #: None | Updated: Unknown
Parts List: Legio Zon | Part #: None | Updated: Unknown