While using a large portable direct expansion (DX) cooling unit as a dehumidifier, which of the following describes the conditions when the device is operating?

Using a large portable direct expansion (DX) cooling unit as a dehumidifier involves both sensible and latent cooling processes. Sensible cooling refers to the process of lowering the air temperature without changing its moisture content, while latent cooling involves removing moisture from the air, effectively reducing the humidity level.

When a DX cooling unit operates, it cools the air to the dew point, causing condensation to form on the evaporator coils. This process removes moisture from the air (latent cooling), while also lowering the temperature of the air (sensible cooling). For effective drying in water damage restoration or other commercial drying applications, both cooling types are necessary, as sensible cooling enhances comfort levels by lowering temperature, while latent cooling addresses humidity by removing water vapor from the air.

The understanding of how these two processes work in conjunction is crucial when operating cooling units in environments where moisture control is essential. Thus, the answer accurately reflects the dual role that the DX system plays in managing both temperature and humidity.