This catalog highlights the company’s direct gas-fired makeup air options. Included is information on the 80/20 recirculation air option with two-position damper control, potentiometer control, building pressure control, and manual quadrant damper control;
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.