YK-EP Centrifugal Chiller With Economizer

2,500-3,500 TR (8,800-12,300 kW)

YORK® YK-EP Centrifugal Chillers are engineered to deliver greater control flexibility, maximum efficiency and extended cooling capacity.

  • Economized refrigeration cycle to extend capacity and improve efficiency
  • Uses R-134a refrigerant for zero ozone-depletion potential
  • OptiSound™ Control reduces operational sound levels
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Designed With Unprecedented Innovation

The YORK® YK-EP "Efficiency Plus" Centrifugal Chiller couples a primary compressor with an economizer compressor, making it more efficient than single-stage chillers. The OptiView™ Control Center provides convenient, full-color control and monitoring capabilities with the touch of a fingertip. 
Designed With Unprecedented Innovation


Reduced Energy Consumption

Designed for the real world, where 99% of the cooling season is spent at off-design conditions.

Improved Sustainability

Falling-film evaporator reduces refrigerant charge up to 40%.

Maximum Reliability

In the event of a power failure, chillers equipped with Quick Start feature can restart in as few as 25 seconds with emergency power.


  • Uses R-134a refrigerant
  • OptiView™ Control Center continuously monitors system operation
  • YORK® variable-speed drive (VSD) technology specifically developed for chiller performance
  • Can operate with entering water condenser temperature as low as 55°F (13°C)
  • Economized refrigeration cycle to extend capacity and improve efficiency
  • Metasys compatible
  • Patented technology delivers reduced sound levels
  • Chiller can be shipped in three pieces or as a single shipment

Insights From Industry Experts

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