Some of the commonly recognized standards for energy efficiency in the context of chillers include:
ASHRAE Standard 90.1: Developed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), this standard sets the minimum energy efficiency requirements for various HVAC (heating, ventilation, and air conditioning) equipment, including chillers.
European Union Ecodesign Directive: The EU has specific regulations for energy-related products, and chillers are included in these requirements. The Ecodesign Directive sets energy efficiency standards to promote environmentally friendly and energy-efficient products.
Energy Star: The Energy Star program, primarily applicable in the United States, is run by the Environmental Protection Agency (EPA). It identifies and promotes energy-efficient products, including chillers, to help consumers make environmentally friendly choices.
AHRI Standard 550/590: The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) provides performance standards and certification programs for various HVACR equipment, including chillers.
ISO 16358-2: This International Organization for Standardization (ISO) standard provides a method for testing and calculating the performance of air-cooled water chillers.
When it comes to air-cooled scroll chillers, their energy efficiency is often measured in terms of their coefficient of performance (COP) or energy efficiency ratio (EER). COP represents the ratio of cooling output to electrical power input, while EER is calculated as cooling capacity in British thermal units (BTUs) divided by the power consumption in watts.
To find specific energy efficiency ratings for air-cooled scroll chillers, it's essential to refer to the product documentation provided by the manufacturer. The efficiency ratings may also vary based on the chiller's size, capacity, and technology used.