Lennox Commercial has expanded its light commercial Raider® rooftop unit line to include the new Raider 6-ton unit available in gas/electric and electric/electric configurations and the new 14 SEER units, available in 3-5 tons. The addition of the new Raider 6-ton rooftop unit rounds out the Raider portfolio.
Johnson Controls launched the new York® Prestige™ rooftop units, which match the footprints of other manufacturers’ units. The new design reduces installation complexities and saves contractors time by eliminating the need for a curb adapter, which is typically required when a new unit does not identically match the existing unit footprint.
Why was one floor’s laboratory ventilation failing to keep up, when it was even the closest floor to the rooftop fans? Some system sleuthing led two engineers to a fitting conclusion. Read more stories in May Issue 2017.