Aprilaire 76 Dehumidifier User Manual


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HOW DOES THE CONTROL WORK?
•Whenthemeasuredhumidityisgreaterthanthesetting,thecontrolwillturnonthe
dehumidifier and ON will blink on the LCD display.
•Whenthemeasuredhumidityfalls3%belowthesetting,thecontrolwillturnoffthe
dehumidifier and ON will stop blinking, but remain displayed on the LCD.
•Thecontrolsendsthedrynessleveltothedehumidifier.
•OnceperCyclePeriod(setbyyourinstallerinthedehumidifier),thedehumidifierwillsample
the air in the area served by the dehumidifier.
•Ifthedewpointoftheincomingairisabovethedrynesslevel,thedehumidifierwillturnon
and ON will blink on the LCD display.
•Whenthedewpointoftheincomingairfallsbelowthesetting,thedehumidifierwillturn
off and ON will stop blinking, but remain displayed on the LCD.
EXTERNAL CONTROL – SEQUENCE OF OPERATION
REMOTE CONTROL – SEQUENCE OF OPERATION
EXTERNAL CONTROL
REMOTE CONTROL
•Thedehumidifierwillturnoffifoneofthecontrollimitshasbeenexceeded.
•Ifthecontrolmeasuresadewpointbelow40°FORatemperatureabove99°F,thecontrol
will deactivate the dehumidifier output if actively dehumidifying, the dehumidifier will stop
dehumidifying, and ON and
*
will blink on the LCD screen (see Figure 2).
•Thecontrolwillresumenormaloperationwhenconditionsfallbackwithinthecontrollimits.
•Thedehumidifierwillturnoffifoneofthecontrollimitshasbeenexceeded.
•Ifthedehumidifiermeasuresatemperaturebelow50°Forabove105°F,thedehumidifier
will stop dehumidifying.
•Thecontrolwillresumenormaloperationwhenconditionsintheremotespacefallback
within the dehumidifier control limits.
CLEANING THE CONTROL
The surface of the Model 76 Dehumidifier Control can be cleaned with water or a non-abrasive
household cleaner, including glass cleaner. Do not spray any liquid directly onto the
control. Spray water or a cleaner onto a soft cloth and gently wipe the surface of the control.
CONTROL LIMITS
The control limits are used to make sure the dehumidifier does not run when conditions are
outside of the operating limits. Dehumidifiers are not as effective when conditions are outside
of the operating limits. For example, the dehumidifier will not remove much moisture when
conditions are cool and dry. Control limits allow the dehumidifier to work efficiently within the
operating range and turn off when conditions are outside of these limits.
• Dew Point Lower Limit:40°FExternalControl
• Temperature High Limit:99°FExternalControl
105°FRemoteControl
• Temperature Low Limit:50°FRemoteControl
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