St. Ignatius Loyola School, Cincinnati, is the largest private school in Ohio, serving over 1,000 K-8 students. Many of the classrooms in the school’s original three-story building, which dates back to 1950, didn’t have air conditioning. That created a big problem on hot days. On cold days, the low-pressure boiler consumed a lot of expensive gas – another big problem. The solution: a Variable Refrigerant Flow (VRF) zoning system from Mitsubishi Electric US, Inc. Cooling & Heating Division (Mitsubishi Electric). The need for a renovation started with a need for comfort. “This is a building with thick, concrete walls, and some of the classrooms face south. On the third floor, during certain times of the summer when it was over 100 degrees. You wouldn’t even want to go up ther

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