Mitsubishi Electric US Inc. Cooling & Heating Division has released its new City Multi L-Generation Air Source outdoor units. The L-Generation features HexiCoil technology, a zinc-aluminum flat-tube heat exchanger that maximizes heat transfer capability through its unique fin shape. Company officials say increased efficiencies across all categories make this outdoor unit ideal for projects with efficiency goals such as green certification or net-zero status. The fin design of the HexiCoil product, along with its zinc outer coating, also provides water shedding capabilities and corrosion resistance, which prolongs the outdoor unit’s lifespan. Other features include: 30 percent smaller footprint than previous models, up to 50 percent reduction in system refrigerant charge, improved high-ambient cooling operating range and improved vertical separation between indoor units.