Evaporative Air Cooler Positive Pressure System
This mode of installation mostly apply at general area cooling which the ground operation does not affected by its high velocity air supply (air travel speed).
It also required minimal fabrication cost (ducting).
The ventilation calculate based on air changes per hour to the general area contain.
Air velocity and temperature from point A to B may vary due to air barrier loss.
This mode of installation can distribute effectively required air volume to particular cooling spot.
With proper insulation, the temperature from point A to B may maintain in good manner.
This mode require certain amount of duct fabrication, but better cool air distribution to the needed spot.