Whirlpool 4322616 manual Mechanical Systems to Accelerate Drying, To Maintain Drying Efficiency

MECHANICAL SYSTEMS TO ACCELERATE DRYING

The mechanical systems in a dryer control these same three conditions to accelerate the evaporation of liquid water remaining in laundry. Within the dryer drum, the dryer:

A)Applies Heat to the Liquid Water

B)Provides Movement of Air over the Water

C)Increases the Surface Exposure of the Water

Efficient drying of the laundry is the result.

In a dryer, air is heated by either an electric element or a gas burner. The heated air is drawn into the drum and passed over the laundry. To prevent the heated air from becoming completely saturated with water vapor, a fan continually pulls the moisture-laden air from the drum and exhausts it outside. Relatively dry heated air is continually drawn into the drum to replace the moisture-laden air being exhausted. (Fig. 3-4)

When you understand how a dryer works, you can understand why it is important that the dryer be properly exhausted to the outside. If the moisture-laden air was vented back into the room where the dryer was located, the air in the room would quickly become saturated. This same air would be continu- ously drawn back into the dryer, heated and passed over the wet laundry. The drying time would be greatly increased.

Fig. 3-4

Air system is similar in gas and electric dryers.

Gas Dryer shown.

TO MAINTAIN DRYING EFFICIENCY

•The Dryer Must Be Correctly Installed

•The Dryer Must Be Properly Vented

•The Air Flow Must Be Unrestricted (Clean Lint Screen)

•The Dryer Must Not Be Overloaded

•The Laundry Must Be Properly Sorted (Heavy items dried with light weight garments can develop over-drying and under-drying in the same load.)

•The Washer Must Extract As Much Water As Possible During the SPIN CYCLE

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