The S-Class™ 40-ton rooftop unit has a low height, which reduces sightline issues, says the company. This R-410A unit has an energy efficiency rating of 10.8 EER. The 4x4 heating and cooling staging, thermal expansion valves, and an integral DDC help reduce temperature swings. According to the manufacturer, the Strike Three diagnostics defend critical components from catastrophic failure. The unit contains the Humiditrol® dehumidification system, which has a hot gas reheat design. Moisture is removed based on relative humidity levels, not the thermostat, so humidity is controlled without lowering room temperature, the company says. Other features include integral energy recovery wheels, and supply and power exhaust fans mounted on isolated frames.

Lennox Industries, Dallas, TX; 800-453-6669;

eProduct #188