Johnson Controls released a new series of pneumatic-to-digital thermostats, the WT-4000. The WT-4000 series converts older pneumatic room control systems and enables communication with newer digital building automation systems.
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.