In high latent heat applications, how should the fan speed be adjusted to increase dehumidification?

To enhance dehumidification in high latent heat applications, reducing the fan speed is ideal. When the fan operates at a lower speed, the air has a longer residence time over the evaporator coil. This extended contact allows for more moisture to be absorbed from the air, thus promoting greater dehumidification.

In a situation where high latent loads are present, such as in humid environments, increasing the fan speed could lead to lower contact time with the cooling surface, which may consequently decrease the effectiveness of moisture removal. A constant fan speed may not sufficiently adjust to changing humidity levels, and varying the fan speed might not optimize the dehumidification process as effectively as simply lowering it. Therefore, decreasing the fan speed is the most effective approach to improve dehumidification performance.