Japanese heavy machinery company Yanmar has introduced a new line of commercial rooftop units (RTUs) manufactured in the United States. The range includes a standard RTU, a heat pump with dual-fuel capability and a dedicated outdoor air system (DOAS).
The standard RTU is available in 13 sizes, with an integrated energy efficiency ratio (IEER) ranging from 16.6 to 21.3. The DOAS is available in one size, with an air volume of 500–1,500 CFM and an IEER up to 21.3. The dual-fuel heat pump is offered in 12 sizes, with IEERs from 17.8 to 21.3 and a coefficient of performance up to 3.9.
“The Yanmar RTU line is ideally suited for facilities of 1,500 square meters and more, including office buildings, shopping centers, healthcare facilities, factories and educational institutions,” said Yanmar. “Our commitment to the simple, reliable swap is rooted in our innovative internal curb adapters, which ensure a perfect fit for existing footprints.”
Yanmar added that the advanced heat pump from 5 tons to 30 tons combines an electric system with natural gas supplementary heating and automatically selects the most cost-effective fuel based on outdoor conditions to maximize efficiency all year round.
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