Water treatment · Cooling towers
Cleaner tower water, with less chemistry.
Cooling towers are warm, wet and open to the air, which suits biofilm and Legionella. Cognituv adds UV-C to the recirculating water and logs water quality in Cognituv Connect.
What’s at stake
The problems we hear most.
Biofilm costs heat transfer
Fouled fill, basins and condenser tubes lower efficiency and raise energy use.
Legionella risk is managed by standard
ASHRAE Standard 188 and many local codes call for a water management program for cooling towers.
Chemical programs keep growing
Biocides, scale and corrosion inhibitors, plus the labor and logs to manage them.
Water costs money too
Every gallon of blowdown is treated water going down the drain.
Where Cognituv fits
What we’d install, and where.
In-line UV-C
Stainless UV-C vessels on the recirculating loop, sized to the flow.
See In-line UV-CTank and basin UV-C
Submersible UV-C for basins and sumps.
See Tank and basin UV-CWater-quality monitoring
Conductivity, pH and ORP probes reporting continuously.
See Water-quality monitoringCognituv Connect
Water quality, UV-C status and trends in one record for your water management program.
See Cognituv Connect
Facility types
The tower and the plant it serves.
What we look at first, the systems we usually find, the codes and standards to check and where we’d start. Codes and standards are listed for reference: a listing isn’t a compliance finding, and doesn’t mean any product, Cognituv’s included, is certified to one.
Cooling tower and central plant
Open and closed-circuit towers and the condenser-water and chilled-water plant they serve.
Includes: Open-circuit cooling tower · Closed-circuit cooling tower · Central chilled-water plant
- We look at
- Biofilm in basins and fill
- Water quality between tests
- A record for your water management program
- Typical systems
- Cooling towers · Condenser-water loop · Chillers
- Codes and standards
- Where we’d start
- Water Treatment · Cognituv Connect
Identify · Apply · Verify™
How a project runs.
Identify
Conductivity, pH and ORP sensors set a baseline alongside your current treatment logs.
Apply
In-line UV-C sized to the recirculation flow, or submersible UV-C in the basin.
Verify
Water quality and UV-C status in Cognituv Connect, ready for your water management program.
Where we work: Commercial HVAC towers, Data center cooling, Industrial process cooling, Hospital and campus central plants, Food and beverage plants and Power and utilities.
Codes and standards
The references to check, each linked to its publisher.
The list comes from Cognituv’s facility and code library, reviewed September 2026. Publication isn’t adoption: whether a document applies, and which edition, depends on your jurisdiction, its amendments and your project, and the authority having jurisdiction decides. A listing isn’t a compliance finding for your facility, and doesn’t mean any product, Cognituv’s included, is certified to it.
ASHRAE 188Consensus standard · 2021
ANSI/ASHRAE Standard 188, Legionellosis: Risk Management for Building Water Systems
Minimum requirements for a water management program that reduces Legionella risk in building water systems.
Listed for: Cooling tower and central plant
ASHRAE Guideline 12Guidance · 2023
ASHRAE Guideline 12, Managing the Risk of Legionellosis Associated with Building Water Systems
System-by-system guidance that supports a Standard 188 water management program, cooling towers included.
Listed for: Cooling tower and central plant
OSHA 29 CFR 1910Federal regulation
Occupational Safety and Health Standards for General Industry, 29 CFR Part 1910
Workplace safety rules for general industry; which sections apply depends on the hazards and work on site.
Listed for: Cooling tower and central plant
See what the data says about your facility.
Start with a no-cost assessment: a call with an engineer and a written recommendation. When you want the data first, Cognituv Connect measures your own equipment, scoped and quoted for your site.