SWATS+ combines electromagnetic scale removal (EMF) with copper-silver ionization (CSI) to keep cooling tower and chiller condenser water clean and biologically safe—with a live water quality dashboard so you can see the effect, not just hope for it.
No chemical dosing, handling and discharge of chemicals from blowdown water.
THE challenge
Chillers and cooling towers are typically the largest energy consumer in a commercial and industrial building. Scale and biofilm on condenser tubes and cooling tower infill act as insulation — the dirtier the surface, the harder the compressor has to work to hit the same set-point temperature.
Traditional chemical programmes manage this with a careful balance of scale inhibitors, corrosion inhibitors and biocides. But that balance has limits: past roughly 4–8 cycles of concentration, the chemistry becomes unstable or uneconomical, forcing blowdown that undoes any water savings. Push harder on one dimension — energy, water, microbial control, discharge compliance, asset protection — and another usually gives way.
SWATS+ was built to remove that trade-off entirely, by treating the water physically instead of chemically.
Scale forms on tube and infill surface
Biofilm colonises the rough surface of scale
Heat transfer drops, chillers work harder
Corrosion risk posed a threat to system integrity
how it works
SWATS+ treats the water as it flows, then shows you the effect in real time — a closed loop of prevention, protection and proof.
SWATS+ EMF
A controlled electromagnetic field alters mineral crystallization characteristics in the water, converting dissolved hardness into non-adherent particles instead of hard, insulating scale on condenser tubes and tower infill.
SWATS+ CSI
A side-stream electrolytic cell releases trace, controlled levels of copper and silver ions, using the oligodynamic effect to control bacteria — including Legionella pneumophila — algae, and biofilm.
Monitoring
In-line sensors track temperature, conductivity, pH and ORP levels continuously, replacing weekly manual sampling with a live picture of your condenser loop.
Optimisation
Trend analysis flags drift before it becomes a fault, giving your team the evidence to fine-tune cycles of concentration and blowdown over time.
What it Delivers
Chiller energy
reduction in chiller energy consumption
Water conservation
reduction in cooling tower blowdown water volume
Maintenance
reduction in cooling tower cleaning frequency
Assets Protection
Doubling Up
of cooling tower infill lifespan
Assets Protection
Significant
reduction of chemical corrosion risk to the cooling infrastructure
*Results vary according to existing water quality, system age and operating conditions. Figures based on field deployment data and manufacturer specifications.
case studies & implementation
"With the new chemical-free condenser water treatment, water quality, the 25-year-old chiller plant efficiency, and the cycle of concentration improved significantly."
— Joseph Tham, Director of Engineering, Carlton Hotel Singapore
The Problem
A 25-year-old central chiller plant on legacy chemical dosing was losing efficiency and needed monthly cooling tower cleaning, with little room to raise cycles of concentration without risking water quality compliance.
10.8%
improvement in chiller efficiency after 12 months
>3.5%
water savings from the condenser loop
from Monthly
→ Half-yearly
cooling tower cleaning frequency
Aligned with Global Sustainable Tourism Council (GSTC) performance indicators
Reduced man-hours and water spent on tower cleaning; less pressure-jet damage to infills
Under Non-Disclosure Agreement (NDA)
The Problem
Chillers and cooling towers run around the clock to support production. Any unplanned stoppage for chemical dosing issues or emergency tower cleaning risks disrupting the production schedule — and scale or biofilm building up quietly pushes up energy costs shift after shift.
4.5%
energy savings & GHG reduction in 6 months
>3%
water savings from the condenser loop
from Monthly
→ Half-yearly
cooling tower cleaning frequency
Removes chemical handling and dosing schedule from the maintenance plan
Replaces periodic water sampling and manual test, with 24/7 automated condenser water quality visibility
WHY CHOOSE SWATS+
CSI + EMF technology with field-proven across cooling systems of various sizes.
Compatible with existing cooling towers and chillers — no system replacement required.
Total Cost of Ownership (TCO): Removes chemical spend, dosing equipment, energy savings, maintenance reduction.
SWATS+ is available on a subscription model — low upfront commitment, ongoing support.
QUESTIONS, ANSWERED
SWATS+ replaces both the antiscalant and biocide programs – EMF handles scale prevention and removal, while CSI ion technology handles microbiological control, including Legionella.
No. SWATS+ PWT is installed as a side-stream system and does not interrupt your existing chiller or cooling tower operation. Once commissioned, it takes over from your chemical program with zero downtime.
SWATS delivers EMF-based scale removal and prevention. SWATS+ PWT adds Copper-Silver Ionization for algae and microbiological control plus a real-time online water quality dashboard — a fully integrated, chemical-free treatment and monitoring system.
SWATS+ PWT is low-maintenance by design, typically requiring quarterly service. Under the subscription model, we provide ongoing support for sensor calibration and equipment functional checks.
Get a free assessment of your cooling tower and chiller system. No obligation, and results benchmarked against your actual load, not a generic estimate.
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Hannve Technology Pte Ltd is a sustainable and advanced technology solution provider dedicated to accelerating business impact through high-quality, reliable solutions that meet our customers’ unique needs and help them achieve their ESG objectives.
© 2026 HANNVETECH
Quick Links
Hannve Technology Pte Ltd is a sustainable and advanced technology solution provider committed to accelerating business impact by providing high-quality and reliable solutions that meet the unique needs of our customers and help them achieve their business objectives in ESG.
© 2023 HANNVETECH
