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Yazaki Energy Systems, Inc.

Yazaki Energy Systems, Inc. is a leading supplier of non-CFC, thermally driven absorption chillers and chiller-heaters, with over 100,000 units operating worldwide.

Last updated September 26, 2026

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Overview

Yazaki Energy Systems, Inc. is a United States-based subsidiary of Yazaki Corporation, a Japanese multinational automotive and energy components manufacturer. The company specializes in the design and manufacture of absorption chillers and chiller-heaters that use natural gas, waste heat, or hot water as their energy source instead of electricity. Its product portfolio includes gas-fired chiller-heaters (CH-K and CH-MG series) and water-fired chillers and chiller-heaters (WFC series), which provide space cooling and heating for commercial, industrial, and institutional applications. According to the company's official website, over 100,000 units are operating worldwide, making Yazaki a leading supplier of non-CFC based space cooling. The company emphasizes energy efficiency and environmental benefits by utilizing waste thermal energy from sources such as solar, microturbines, cogeneration, and fuel cells. Its newest models, the WFC-M100 and WFC-MB100, produce 100 refrigeration tons (RT) of cooling capacity when fed with 194°F hot water. Yazaki Energy Systems serves customers globally through a network of sales and service representatives, and its products are used in a wide range of installations where electric chillers are impractical or where waste heat is available.

History

Yazaki Energy Systems, Inc. is a subsidiary of Yazaki Corporation, a Japanese company founded in 1941 by Sadami Yazaki. Yazaki Corporation initially focused on automotive wiring harnesses and later diversified into various fields, including energy systems. Yazaki Energy Systems was established in the United States to market and support absorption chiller technology developed by Yazaki Corporation. The company has been a pioneer in non-CFC absorption cooling, providing an environmentally friendly alternative to electric chillers. Over the years, Yazaki Energy Systems has installed over 100,000 units worldwide. Its product line has evolved from early gas-fired chiller-heaters to include water-fired chillers that can utilize waste heat from various sources. The introduction of the WFC-M100 and WFC-MB100 models represents the latest advancement, offering 100 RT cooling capacity from hot water. The company continues to innovate in thermal cooling solutions, targeting applications in combined heat and power (CHP) systems and renewable energy integration.

  • 1941

    Yazaki Corporation founded in Japan

  • Yazaki Energy Systems, Inc. established in the United States

  • Introduction of WFC-M100 and WFC-MB100 water-fired chillers

Products and positioning

Leading supplier of non-CFC based space cooling, focusing on energy-efficient, thermally driven cooling solutions that utilize waste heat.

  • CH-K Series Gas Fired Chiller-Heater

    Gas-fired absorption chiller-heater available in models CH-K30, CH-K40, CH-K50, CH-K60, CH-K80, CH-K100.

  • CH-MG Series Gas Fired Chiller-Heater

    Gas-fired absorption chiller-heater available in models CH-MG150 and CH-MG200.

  • WFC Series Water Fired Chillers and Chiller-Heaters

    Water-fired absorption chillers and chiller-heaters available in models WFC-SC5, WFC-SC10/SH10, WFC-SC20/SH20, WFC-SC30/SH30, WFC-SC50, WFC-M100, WFC-MB100.

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