Description
XRAC / XRAF – Extra Large Chillers (VSD Screw, 300–1500 kW class)
Uniflair XRAC / XRAF is engineered for large cooling demands in hyperscale and campus data centers.
VSD screw compressor technology supports high efficiency at partial loads, improved control precision and strong seasonal performance.
XRAC is air-cooled; XRAF adds free-cooling to reduce annual energy consumption where ambient conditions allow.
XRAC: Air-Cooled
XRAF: Free-Cooling
VSD Screw Compressors
300–1500 kW class
Data Center Cooling
XRAF: Free-Cooling
VSD Screw Compressors
300–1500 kW class
Data Center Cooling
Key Technical Facts
Capacity Class
300–1500 kW (brochure)
300–1500 kW (brochure)
Compressors
VSD Screw
VSD Screw
Variants
Air-Cooled / Free-Cooling
Air-Cooled / Free-Cooling
Use Case
Hyperscale / Campus DC
Hyperscale / Campus DC
Overview
XRAC / XRAF combines large capacity, controllability and energy optimisation features that are especially relevant for data center cooling plants.
Free-cooling configurations can further reduce compressor runtime and operating costs depending on local climate and water temperatures.
Technical Specifications (Summary)
| Series | XRAC / XRAF |
|---|---|
| Compressor Type | VSD screw compressor technology |
| Capacity Class | 300–1500 kW (brochure reference) |
| Variants | XRAC: Air-cooled chiller / XRAF: Free-cooling chiller |
| Controls | Advanced control; monitoring/BMS options (protocol dependent) |
For detailed refrigerant options, electrical data, dimensions and performance tables, use the brochure in Downloads.
Model Matrix
This family includes multiple sizes and configurations. Selection is project-specific (design ambient, water setpoints, redundancy and acoustics).
Options & Accessories
- Free-cooling configuration (XRAF)
- Acoustic packages (site dependent)
- Hydronic kit options (configuration dependent)
- Monitoring/BMS communication modules (protocol dependent)
Downloads
Document opens on Schneider Electric downloads page.