DanVex DEH-1700P, Operation Manual

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Water vapor condensation
The maximum water vapor volume that can be absorbed increases when the air is heated,
but the water vapor content remains however the same and this results in relative humidity
reduction. In contrast, when the air is cooled, the maximum water vapor volume that can be
absorbed continuously reduces, the water vapor volume contained in the air remains however
the same and the relative humidity increases. If the air temperature falling continues the
capacity to absorb the water vapor volume is reduced until it is equal to the water vapor
content. This temperature is called the dew-point temperature. When the air is cooled below
the dew-point temperature, the water vapor content becomes higher than the maximum
possible water vapor content.
Water vapor displacement starts.
The vapor condenses to water. Thus the moisture is removed from the air. A misted window
glass in winter or a misted bottle with a cold drink are common examples of condensing. The
higher the relative air humidity the higher is the dew-point temperature, and thus it is easier to
fall below the dew-point temperature.
The produced condensate is collected in the unit and discharged.
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The air flow is cooled on the way through /via the evaporator-condenser till its temperature is
below the dew point. Water vapor condenses, it is collected in a condensate trap and
discharged.