Designed and manufactured in the UAE, GACS™ combines high-pressure evaporative precooling, four-stage water treatment, water recirculation, and intelligent PLC control to cool the air entering air-cooled chiller condenser coils to approximately 2°C above the ambient wet-bulb temperature.
Backed by more than ten years of field deployment and our status as a Carrier-approved supplier, GACS™ helps protect condenser coils from direct water contact, dust, sunlight, and mineral deposits while delivering measurable energy savings, improved cooling performance, and an attractive return on investment.
By reducing chiller energy consumption under demanding hot-climate conditions, GACS™ supports facility decarbonization goals and contributes to the UAE Net Zero 2050 strategy.
GACS™ is a modular, retrofit-ready precooling system for air-cooled chillers. Installed ahead of the condenser coils, SS316 high-pressure misting nozzles operating at 50–70 bar generate a fine mist that cools the incoming air through evaporation.
Under suitable ambient conditions, GACS™ can lower the condenser entering-air temperature to approximately 2°C above the wet-bulb temperature, achieving evaporative effectiveness of up to 90%. This can reduce chiller electricity consumption by up to 35%, increase cooling capacity by up to 40%, and help prevent high-condensing-pressure alarms and trips.
A protective polyurethane-alloy air filter separates the misting zone from the condenser, helping prevent direct water contact while protecting the coils from dust, direct sunlight, mineral carryover, and other airborne contaminants. Non-evaporated water is collected and recirculated to minimize drainage and reduce make-up water demand.
GACS™ is suitable for data centres, central cooling plants, hotels, commercial buildings, and other critical cooling applications.
• High-pressure misting: SS316 pipes and precision nozzles operate at 50–70 bar to generate a uniform fine-mist wall. Rapid evaporation can cool the condenser entering air to approximately 2°C above the ambient wet-bulb temperature.
• Condenser protection: A low-pressure-drop polyurethane-alloy filter acts as a mist eliminator, helping protect the condenser coils from water droplets, dirt, direct sunlight, mineral carryover, and airborne contaminants.
• Intelligent PLC control: The PLC monitors ambient temperature, relative humidity, and chiller fan load, automatically activating and staging the system to maximize cooling efficiency while avoiding unnecessary water consumption.
• Four-stage water treatment: Integrated filtration and UV sterilization help control suspended solids, calcium-carbonate scaling, bacterial growth, and water-hygiene risks.
• Water recirculation: Non-evaporated water is collected and reused, minimizing uncontrolled dripping, wastewater discharge, and fresh make-up water demand.
• Integrated pump station: High-pressure pumps, filtration and treatment components, water tanks, instrumentation, and recirculation equipment are combined within a compact, durable, powder-coated aluminium enclosure.
• Enhanced chiller performance: By lowering the condenser entering-air temperature and protecting the coil surface, GACS™ helps reduce compressor power consumption, increase cooling capacity, lower condensing pressure, reduce high-pressure alarms and trips, limit coil fouling, and extend condenser service life.
• Performance monitoring: Integrated sensors and data logging support BMS and SCADA connectivity for system monitoring, alarm reporting, trend analysis, and performance verification.
• Modular retrofit design: The configurable design is engineered to accommodate all types of air-cooled chillers, regardless of brand, model, capacity, or condenser arrangement.
| System type | Adiabatic precooling system for air-cooled chillers, dry coolers, and condensers |
|---|---|
| Chiller electrical savings | Up to 35% |
| Cooling capacity uplift | Up to 40% |
| Wet-bulb approach | Up to 2°C above the ambient wet-bulb temperature |
| Evaporation efficiency | UUp to 90% |
| Operating pressure | 50–70 bar |
| Misting components | SS316 high-pressure pipes and precision nozzles |
| Water treatment | Four-stage filtration with UV sterilization |
| Water recirculation | Designed to collect and reuse 100% of non-evaporated water, eliminate dripping, and minimize make-up water demand. |
| Control system | PLC-based control using ambient temperature, relative humidity, and chiller fan-load inputs |
| Frame & Construction | Corrosion-resistant, powder-coated aluminium enclosure with SS316 misting lines, nozzles, brackets, and fasteners |
| Condenser protection | Protection against water droplets, dust, direct sunlight, airborne contaminants, and mineral carryover |
| System integration | BMS and SCADA monitoring capability |
| Compatibility | Fits all major air-cooled chiller brands, Models, capacities, and condenser configurations |
| Standards | ISO 9001:2015. Carrier-approved supplier |
| Typical payback period | 12–24 months, depending on operating conditions and system usage |
| Country of manufacture | United Arab Emirates |
Ten years of GACS™ deployments across the UAE back our track record: commercial towers, data halls, and multi-shift adiabatic cooling production plants running through 50°C summers. ISO 9001:2015 certification, Carrier-approved supplier status, support installations spanning adiabatic cooling for warehouse centers, hospitality campuses, and industrial estates across the Emirates.
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