Absorption Chiller

YHAU-CG/CA Double Effect Direct Fired Chiller/Heaters

These units are powered by direct firing of natural gas or light oil, supplying chilled water and hot water for both cooling and heating needs.

YHAU-CG

YHAU-CG/CA Double Effect

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Innovative

Innovative Design For Maximum Efficiency

YORK® YHAU-CG/CA Double-effect, Direct-fired Absorption Chillers offer versatile capacities ranging from 120 to 1,600 TR. This cutting-edge unit features a two-step evaporator and absorber design, coupled with parallel flow technology, reducing concentration levels and corrosion risk while enhancing efficiency. Our world-class engineering and service support ensure seamless chiller operation throughout its lifespan.

Benefits

Optimal Efficiency

YHAU-CG/CA Chiller uses an innovative two-step evaporator and absorber design for enhanced efficiency.

Flexible Design

Fueled by natural gas or light oil, this unit is versatile for various cooling applications.

Lower Cost Of Ownership

Our top-tier teams simplify the operating cycle, reducing ownership costs for peace of mind.

Features

  • Our enhanced two-step evaporator and absorber design improves refrigerant absorption, reducing overall system pressure.
  • VFD solution pump enhances part-load efficiency, reducing gas/oil consumption compared to constant-speed pumps.
  • Two-Step Design Boosts Refrigerant Absorption, Lowering System Pressure.
  • Two-step evaporator and absorber design enhances absorption of the refrigerant into the concentrated solution, reducing overall pressure
  • Variable-Frequency Drive VFD Solution Pump Improves Part-Load Efficiency, Cutting Steam Consumption Compared To Constant-Speed Pumps.
  • Control center with graphical, animated, LCD display offers present and past operational status, data recording and chiller safeties accessible at a touch
  • Simultaneous cooling and heating operation available.
  • Parallel flow cycle enables lower lithium bromide solution concentrations, reducing crystallization risk and the potential for corrosion
  • High-temperature generator uses stainless steel tubes to maximize reliability by eliminating stress damage
  • Isolation Valves On The Suction And Discharge Of The Solution And Refrigerant Pumps Allow Quick And Easy Servicing Of Pumps, Which Typically Have A 60,000-Hour Life
Two-step

Two-step Evaporator And Absorber

YORK® YHAU-CG/CA Double-effect, Direct-fired Chillers feature an innovative two-step evaporator design with dual pressure levels, splitting the absorption process. Chilled water circulates through tubes in both evaporators, while a concentrated lithium bromide solution is distilled in the absorber shell, moving in the opposite direction. This reduces solution concentration and overall pressure, enhancing efficiency and reliability compared to standard absorption chillers.

See how it works

Parallel Flow Cycle

 

The parallel flow cycle splits the solution flow into two balanced paths, distributing it between the low-temperature and high-temperature generators. By combining our two-step and parallel flow design, the unit attains safer and more efficient operation at significantly reduced pressure compared to traditional series-flow designs. This innovative approach results in lower LiBr concentration, enabling the use of a less intensive driving heat source, ultimately delivering a high coefficient of performance (COP).