How is condensation avoided in high humidity environments?
Outdoor air is pre-conditioned and dehumidified in the primary air handling unit, along with any return air needed to make up the primary air total. The building is maintained at a slight positive pressure with respect to the outside to control infiltration of humid air. Once the dehumidified air is in the space, the dew point is monitored and the temperature of the primary air will be controlled maintain the room design humidity level in order to avoid condensation at the beam. If the system can not maintain the room design humidity level then the last resort would be to increase the temperature of the secondary chilled water.
