Aprilaire 1730A Work Light User Manual


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TURNING CONTROL ON/OFF
FIGURE 3 – ON/OFF Buttons
• PressingtheONbuttonwillturnonthecontrol.
• PressingtheOFFbuttonwillturnoffthecontrol.
• ThecontrolwillcontinuetodisplaythemeasuredhumiditywhenOFF.
• ThehumiditysettingcannotbechangedwhenthecontrolisOFF.
CHANGING THE HUMIDITY SETTING
FIGURE 4 – UP/DOWN Buttons
• Thefirstpressofeitherthe
or
button will display the humidity setting on
the LCD.
• Eachsubsequentpushoftheupordown
buttons will change the setting by 1%.
• Ifabuttonishelddown,thesetting
will continually change by 1% every
1/2 second for as long as the button is
pressed.
• Thecontrolwillexitthehumiditysetting
screen 5 seconds after the last button
press/release.
FIGURE 5 – Humidity Setting Screen
90-1637
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.
SEQUENCE OF OPERATION
• 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.
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
• TemperatureHighLimit:99°F
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