THIS column provides information about the use of outdoor air dampers in hot and humid climates and during hot and humid seasons in temperate climates in commercial buildings. Terms used in this ...

A decision to replace more than 300 aging damper actuators forced Entergy to make a choice between pneumatic and electric actuator designs. At Entergy’s Independence Plant in Newark, Ark., two ...

Zoning in forced-air systems is accomplished by controlling dampers that are located within the ductwork system. Dampers open, close, or modulate depending on the demand from the controller. Air is ...

Pneumatic furnace damper drives may be more common, but electro-hydraulic actuators provide several advantages to the more traditional control scheme. One fossil-fired plant in Taiwan achieved more ...

The main goal of any HVAC system is to provide comfort. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has established room conditions that are acceptable for ...