The bypass damper (2) and isolation damper (3) are both completely open, to optimize airflow efficiency. The outside air damper (1) and hot aisle return damper (4) moderate to maintain a set temperature within the IT sections.
Side view shown
Hot weather damper operation
The hot aisle return damper (4) is completely closed, so that the air returning from the hot aisle is not recirculated through the Adiabatic unit. The outside air damper (1) and the isolation damper (3) are both completely open to optimize airflow efficiency. The bypass damper (2) modulates to maintain the humidity parameter.
Water is added to the media to cool the outdoor air, while still maintaining the humidity in the IT sections below the max RH parameter.
Side view shown
Exhaust fan operation
