For large buildings and industrial processes, water-cooled screw chillers typically deliver the lowest cost per ton of refrigeration. Our high-efficiency full falling-film screw chillers cover 70 RT to 470 RT (approximately 246–1,650 kW) in 52 standard specifications.
The proven twin-rotor screw compressor and full falling-film evaporation technology achieve excellent efficiency at both full and partial loads, using environmentally-friendly R134a refrigerant.
- Cooling capacity 70–470 RT (≈246–1,650 kW), 52 standard specifications
- Twin-rotor screw compressors with inverter options
- Full falling-film evaporator technology for high full- and part-load efficiency
- Environmentally-friendly R134a refrigerant
- For district cooling, chemical, pharmaceutical and food processing plants
- On-site installation guidance and commissioning support available
Range Overview
| Parameter | Value |
|---|---|
| Cooling capacity | 70 – 470 RT (≈246 – 1,650 kW) |
| Compressor | Twin-rotor screw, semi-hermetic (inverter option) |
| Evaporator | Full falling-film |
| Refrigerant | R134a |
| Standard specifications | 52 models |
| Applications | Commercial complexes · industrial process · district cooling |
Range figures as published for the current series — request the full engineering data book for model-level capacity, electrical and dimensional data.
Models in This Range
Water-Cooled Screw Chiller
High-efficiency full falling-film water-cooled screw chillers, 70–470 RT, twin-rotor screw compressors, R134a, 52 standard specifications.
View productFAQ — Water-Cooled Chillers
Water-cooled or air-cooled chiller — which should I choose?
Water-cooled screw chillers generally suit large, steady loads — commercial complexes, district cooling plants and industrial process duty — where a cooling-tower loop is practical and cost per ton of refrigeration matters most. Air-cooled modular chillers skip the tower and condenser-water circuit, so they are often simpler for small and mid-sized buildings or water-scarce sites. Our water-cooled range covers 70–470 RT; see the air-cooled chiller range and our detailed comparison guide for the alternative.
What is falling-film evaporation and why does it matter?
Refrigerant is distributed as a thin film over the tube bundle instead of flooding it — improving heat transfer and reducing refrigerant charge, which raises efficiency at both full and part load. Every model in this 70–470 RT screw chiller range uses a full falling-film evaporator with R134a refrigerant.
Do you support installation and commissioning?
Yes. Our team provides on-site installation guidance and commissioning support, plus operator training for plant staff. Before ordering, send your load list or floor plan and our engineers return a free selection within 24 hours — see the water-cooled screw chiller page for the full range overview.
Need help selecting?
Send your load list or floor plan — free engineering selection within 24 hours.