OptiChill™ FreeCool
500TR / 1759kW
A low-energy, low-sound R513A air-cooled screw chiller with a large cooling capacity to meet the requirements of colocation/ hyperscale data centers.
Enhanced economizers deliver unmatched free-cooling potential
On-board variable-speed water / glycol pumps & harmonic filtration delivers phenomenal space / plant savings
Advanced controls platform offers uptime protection and optimized efficiency
Why not walk round a unit and explore for yourself with our virtual tour?
Refrigeration System
- High capacity twin screw compressors offer reliability and flexibility, with staged capacity control.
- Low GWP R513A refrigerant.
- 8 stages of cooling across two compressors for more precise capacity match.
- Dual independent refrigeration circuits for resilience.
- Efficient shell and tube evaporator with freeze protection offers high evaporating temperatures.
- Economizers, each with dedicated EEV, to enhance compressor performance at full and part load operation.
Chilled Water System
- Up to 95% free-cooling via enhanced economizer technology that increases free cooling envelope, even in high ambient regions.
- Glycol containment system protects chiller while ensuring 100% chilled water delivery to the data center, increasing heat exchange efficiency.
- Increased operational evaporating temperature range allowing supply water temperatures to be increased, thus raising the free cooling threshold and giving enhanced compressor efficiency and reduced power input.
- Large surface area condenser coil with enhanced tube and fin for improved heat exchange and low noise.
- On-board variable speed pump, ensuring supply is perfectly matched to load while maintaining water-side TD and saving on external plant requirements.
Controls
- On-board active harmonic filtration, ensuring a clean power supply to the data center, while saving on external plant requirements.
- Automatic rescheduling of chilled water.
- Enhanced controls including fast start, load limiting and intelligent management of compressors, refrigerant and pumps.
- Modem link for remote monitoring
Construction
- Latest fan technology reduces sound and power input.
- Robust construction with acoustic insulation features, that can perform in a wide range of climates / settings.
- Corrosion-resistant condenser coils for aggressive atmospheres
- Optional Coil guards to help prevent fin damage
Chiller | Capacity | Max EER | Max ESEER | Refrigerant | Compressor Type | Circuits |
OptiChill Free Cool | 1758.5kW | 3.12 | 3.48 | R513A | Screw compressor | Dual |