Lennox has expanded its light commercial Raider rooftop HVAC unit line to include 7.5-, 8.5- and 10-ton heat-pump models. They join existing units in 3- to 12.5-ton gas/electric and electric/electric models. Raider units have efficiency levels of up to 13 SEER, 11.5 EER and 13.2 IEER. Units are built to fit the industry’s most popular curb sizes and match existing utility locations, which eliminates the need to purchase an adaptor curb. The multi-stage air volume supply fan technology option optimizes energy efficiency by matching fan speed with compressor demand. BACnet is available as a field- or factory-installed option.