Mitsubishi Heavy Industries (MHI) has obtained ETL Listing and AHRI certification for its JHT-Z270I centrifugal chiller, a 10 MW-class unit designed for AI data center cooling. The certifications mark key steps toward commercial deployment in the United States, with MHI beginning market introduction activities in North America.
The JHT-Z270I incorporates MHI’s compressor technology and is designed for high-capacity, high-efficiency cooling applications. ETL Listing, provided by Intertek, confirms compliance with relevant North American safety standards, while AHRI certification independently verifies equipment performance against published ratings.
The chiller is a core component of MHI’s Modular Chiller Plant (MCP), which integrates centrifugal chillers, pumps, heat exchangers, and controls into a pre-engineered cooling platform. The modular system is designed to support scalable deployment, operational reliability, and simplified integration at large AI computing facilities.
The MCP uses hybrid free-cooling modes that prioritize outside air while operating the chiller when required. Closed-loop cooling-water configurations help prevent external contamination and evaporation losses. These features are intended to improve Power Usage Effectiveness (PUE) and Water Usage Effectiveness (WUE).
MHI reports an approximately 60% share of Japan’s centrifugal chiller market, based on FY2025 domestic shipment data from the Japan Refrigeration and Air Conditioning Industry Association. The company is also developing integrated power, cooling, and energy management solutions for AI infrastructure.
“Certification of the JHT-Z270I is an important milestone in the commercialization of MHI’s AI infrastructure portfolio,” said Shin Gomi, Senior General Manager, Data Center & Energy Management, Mitsubishi Heavy Industries, Ltd.
