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YHAU-CG/CA Double Effect Direct Fired Chiller/Heaters
120-1,600 TR (422-5,626 kW)
Driven by direct firing of natural gas or light oil, these units provide chilled water and hot water for cooling and heating applications.
- Innovative, two-step evaporator and absorber design combined with parallel flow cycle.
- Suited for natural gas or light oil energy sources
- Variable-frequency drive (VFD) solution pump
Innovative design for superior efficiency
The York YHAU-CG/CA Double-effect, Direct-fired Absorption Chiller offers a broad range of capacities from 120 to 1,600 TR. This unit uses an innovative, two-step evaporator and absorber along with a parallel flow, which enables lower concentrations and minimizes the potential for corrosion and improves efficiency. Our world-class engineering and service organization helps to simplify the chiller operation over the life of the system.
Benefits
Optimal efficiency
Our YHAU-CG/CA Double-effect, Direct-fired Chiller uses an innovative, two-step evaporator and absorber design that enhances efficiency.
Flexible design
Driven by natural gas or light oil energy sources, this unit is suited for a variety of comfort or industrial process cooling applications.
Lower cost of ownership
World-class engineering and service teams reduce the cost of ownership by simplifying the operating cycle and deliver worry-free peace of mind.
Two-step Evaporator and Absorber
YORK® YHAU-CG/CA Double-effect, Direct-fired Chillers are uniquely designed with a two-step evaporator that has two pressure levels to divide the absorption process. The chilled water flows in tubes through the two evaporators while a concentrated lithium bromide solution is distilled in the absorber shell-side in the opposite direction. This reduces the solution concentration and overall pressure, making the unit more efficient and reliable than conventional absorption chillers.
See How It Works
Parallel Flow Cycle
The parallel flow cycle divides the solution flow between the low temperature and high-temperature generators into two parallel, balanced paths. Combining our two-step and parallel flow design, the unit can achieve a safer and more efficient operation at a much lower pressure than conventional series-flow designs. Thanks to this innovative design, the LiBr concentration is lower. This results in a relatively low grade for the driving heat source, providing a high coefficient of performance (COP).
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Related Products
- Innovative York two-step evaporator and absorber design enhances absorption of the refrigerant into the concentrated solution, reducing overall pressure and risks of crystallization.
- Lower pressure steam into the generator can be used to drive the absorption cycle for higher system efficiency.
- Solution plate heat exchanger optimizes efficiency by enabling effective heat transfer between the diluted and the concentrated lithium-bromide solutions.
- Innovative York two-step evaporator and absorber design enhances absorption of the refrigerant into the concentrated solution, reducing overall pressure
- Lower temperature hot water source into the generator can be used to drive the absorption cycle for higher system efficiency
- Virtually eliminates crystallization risk and reduces the potential for corrosion
- Two-step evaporator and absorber design enhances absorption of the refrigerant into the concentrated solution, reducing overall pressure.
- Parallel flow cycle enables lower lithium bromide solution concentrations, reducing crystallization risk and the potential for corrosion.
- Variable-frequency drive (VFD) solution pump provides superior part-load performance to reduce steam consumption versus constant-speed pumps.