PRODUCT OPERATION
THEORY OF OPERATION
WHAT IS HUMIDITY?
Humidity is defined as the amount of water va- por in the air and is measured as a percentage of the amount of water vapor the air can hold at a given temperature. When the amount of water vapor exceeds 100%, the moisture can no longer remain suspended in the air, usually resulting in precipitation. At levels approaching 100%, mist and fog are present.
Generally speaking, air at low temperatures has less holding capacity than air at high tem- peratures. Therefore, air with 100% humidity at 45°F has less water vapor by volume than air with 100% humidity at 70°F. Consequently, summer months throughout most of the country can present a problem, because warm moist air trapped inside a structure can become overly saturated with moisture. Generally, humidity levels exceeding 50% in air over 70°F, can be uncomfortable and can cause damage to personal property.
REMOVING UNWANTED HUMIDITY
Adehumidifier is designed to remove unwanted moisture from the air and maintain relative humidity at acceptable levels. A dehumidifier does not remove all of the moisture from the air, as this is not necessary, or desirable. The dryness control on the dehumidifier allows the customer to adjust a variable humidistat to control the relative humidity of room air. Once the humidistat is set to maintain acceptable humidity levels in a room, the dehumidifier will continue to maintain that level, regardless of the ambient temperature of the air, or changes in relative humidity
Arefrigeration system (see the illustration be- low) is used to collect the moisture. With the
refrigeration system working, the evaporator is cooled to temperatures ranging from 33° - 37°F. When
SUCTION TUBE |
|
| DISCHARGE TUBE |
EVAPORATOR | CONDENSER |
AIR | AIR |
FLOW | FLOW |
(IN) | (OUT) |
| FAN |
COLLECTED WATER | CAPILLARY TUBE |
