YVFA Free Cooling Variable Speed Screw Chiller
150-500 TR (525-1,750 kW)
The YORK® YVFA is a free-cooling screw chiller that minimizes operating cost by combining superior engineering and technology with a packaged design that's simple to own and operate.
- YORK® variable-speed drive
- Air-to-liquid, free-cooling coils
- Intelligent controls optimize energy
Simple to Own and Operate
Advanced technologies, including a variable speed drive compressor, energy optimized hybrid cooling mode and air-to-liquid free cooling coils designed by our heat transfer experts, are intelligently controlled to maximize efficiency year-round.
Benefits
EFFICIENCY
Hybrid mode combines the best technologies to boost part-load efficiency.
SIMPLICITY
Packaged controls and single-point convenience simplify operation.
RELIABILITY
Get assured performance from the variable-speed leaders who have over three generations of expertise.
FAST PAYBACK
Payback possible in as little as two years – and we can prove it.
Hybrid Mode Technology
Traditional free-cooling chillers use fixed-speed compressors that simply shut off when ambient temperatures are low enough. But this only saves energy when the compressors are completely shut off. Johnson Controls has pioneered a unique Hybrid Mode technology that optimizes energy use year-round. Using free-cooling coils to reduce the mechanical cooling load at a much higher temperature, the VSD compressors reduce speed and energy use more of the year for long-term performance and efficiency.
Free-cooling Technology
YVFA free-cooling, air-cooled chillers deliver the industry’s highest leaving water temperature to provide more tonnage in the same footprint as competing systems. And intelligently controlled free-cooling bypass valves reduce pump energy when free-cooling is not beneficial. These technologies enable the chiller to move from mechanical to hybrid to free-cooling modes automatically, further minimizing energy use.
Related Products
- Patented YORK® liquid-cooled, variable-speed drive technology
- Screw compressors designed and manufactured by Johnson Controls
- Patented, stepped VI (volume ratio) technology to match compressor operation to conditions
- Integrated compressor VSD standard with 50% fewer moving parts
- Excellent capacity control, high power factor and soft start
- Easy access to display and control features via control display access door
- Industry-leading IPLV with variable-speed drive fans
- Optimized compressor for better part-load efficiency
- Building automation system (BAS) communications
- Standard ambient range up to 125°F
- Optional hot-gas bypass
- Optional factory-mounted hydronic-pump kit