YORK_HVAC European catalogue_Mar. 2021_EN | Page 42

Chillers and Heat Pumps | Air-Cooled Chillers and Heat Pumps

YVFA Air-cooled VSD screw chiller with integrated Free-cooling

Cooling capacities from 577 kW to 1664 kW
R513A
Features
• Available in Open and Closed ( glycol free ) loop configurations .
• Optimized Annual Energy Savings thanks to the unique combination of the YORK Variable Speed Drive technology expertise and the sophisticated free-cooling controls .
• Reduced installation footprint , thanks to the integration of the free-cooling coils together with the chiller .
• Lower ambient operating range when in free-cooling mode , compared to standard units .
Options / Accessories
• Refrigerant R134a
• BMS Interfacing options
• Advanced Controls ( Silent night , quick restart )
• Low temperature application options
• Dual pressure relief valves
• Flow switch
• Epoxy treatment Microchannel Coils
• Fan options
• Enclosure options
• Sound attenuation options
• Anti-vibration mounts options
• Desuperheater
YVFA free-cooling chillers are available in open- or closed-loop configurations to maximize efficiency for your specific type od building
Open-loop configuration
Open-loop design permits building glycol to flow through the free cooling coils directly , with the best performance and the lowest first cost .
Closed-loop configuration
Closed-loop design integrates a brazed plate heat exchanger and pump loop . The building water loop is isolated from the free cooling coils , and the YVFA pump circulates glycol between the brazed plate heat exchanger and the free cooling coils . This provides the lowest pump pressure drop and a building loop that ’ s glycol-free .
42 YORK Air-Conditioning Products