Whirlpool AD35DSS, AD50DSS, AD70USS manual Product Operation, Theory of Operation, What is HUMIDITY?

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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 moisture-ladened room temperature air is drawn across the evaporator, the moisture condenses on the cold coils. The cool dry air is then drawn past the condenser. This cools the condenser and warms the air before it is recirculated into the room. The water collected on the coils of the evaporator runs off into a collection container, or a drain.

SUCTION TUBE

 

 

DISCHARGE TUBE

EVAPORATOR

CONDENSER

AIR

AIR

FLOW

FLOW

(IN)

(OUT)

 

FAN

COLLECTED WATER

CAPILLARY TUBE

2-1

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Contents Models AD25BSS, AD35DSS, AD50DSS DehumidifiersGoals and Objectives ForwardTable of Contents Page General Dehumidifier SafetyYou can be killed or seriously injured if you don’t Immediately follow instructionsModel Number Model & Serial Number DesignationsSerial Number AD = Dehumidifier, Whirlpool RD = Dehumidifier, RoperModel & Serial Number Wiring Diagram Label Locations Page Product Operation What is HUMIDITY?Theory of Operation Removing Unwanted HumidityTypical Operation Operating CharacteristicsPage Dehumidifier USE Empty/Adjust Bucket LightStarting/Stopping the Dehumidifier Control Type Fan Speed Control Type 2 Models OnlyDryness Control Starting/Stopping the DehumidifierFan Speed Control Type 3 Models Only Desired Humidity Control Type 3 Models Only Draining the DehumidifierOption 2-Connect Drain Hose Normal SoundsCleaning the AIR Filter on Some Models Cleaning the DehumidifierDehumidifier Care Component Locations Component AccessRemoving the Cabinet Top Rear Screws Rear Half Front Half Bottom Rear Screw Remove the two hex-head screws from the electronic control Thermistor & Clip Ground Wire Screw To remove the light To remove the mechanical humidistatTo remove the power supply cord Removing the FAN Capacitor and the FAN Motor To remove the fan capacitor see the top right photoTo remove the fan motor Top green ground wire on condenser To remove the compressor capacitor Removing the Compressor Capacitor and the Bucket SwitchMechanical Models To remove the bucket switch Electronic ModelPage Mechanical Humidistat FAN Capacitor Component TestingFAN Motor Bucket SwitchDiagnostics Diagnostics & TroubleshootingProblem Cause Correction TroubleshootingWiring Diagram Wiring DiagramsWiring Diagram Wiring Diagram Page Page Page Product Specifications Warranty Information Sources For Technical Information and Service PointersFor Technical Assistance While AT the CUSTOMER’S Home Call Corporation
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