Mitsubishi Electric US, Inc. Cooling & Heating Division introduced its latest innovation in variable refrigerant flow (VRF) technology – the CITY MULTI® L-Generation Air Source outdoor units. According to the company, the L-Generation (6 to 30 tons; single modules up to 14 tons) has achieved significantly improved efficiency ratings due to HexiCoil technology, an aluminum flat tube heat exchanger that maximizes heat transfer capability through its unique fin shape. Increased efficiencies across all categories make this outdoor unit ideal for projects with efficiency goals such as LEED certification or net-zero status.

The fin design of the HexiCoil product, along with its zinc outer coating, provides water shedding capability and corrosion resistance, prolonging the outdoor unit’s lifespan. The capillary tube system ensures even fluid distribution, further contributing to heat transfer ability.

Other L-Generation enhancements include 30% smaller footprint than previous models; up to 50% reduction in system refrigerant charge; improved high-ambient cooling operating range; and improved vertical separation between indoor units within the same heat recovery system.

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