Aprilaire 75 User's Manual
Contents
1. IEAM Model 75 Dehumidifier Control Model 75 Dehumidifier Control Owner s Manual Installed by Installer Phone Date Installed PLEASE LEAVE THIS MANUAL WITH THE HOMEOWNER Thank you for your purchase of the Aprilaire Model 75 Dehumidifier Control Your control allows you to set the relative humidity level for your home and provides control of the dehumidifier from a convenient living space location The Model 75 uses an onboard sensor to monitor the relative humidity in the space in which it is located and displays the measured relative humidity on the digital display SETTING THE DESIRED HUMIDITY LEVEL The control will allow you to set the desired humidity level in your home and can be used to turn dehumidification On or Off Begin by pressing the ON button and ON will be displayed on the LCD Screen see LCD display in Figure 1 Use the arrow buttons to set the control at 59 when first installed Allow the dehumidifier to run until the initial setpoint has been reached before deciding if you want to change the humidity setting A Raise the setting if you prefer the air to be less dry this will reduce the amount of time that the dehumidifier runs W Lower the setting if you prefer the air to be more dry this will increase the amount of time that the dehumidifier runs Your comfort is the best measure of how to adjust your setting When first Installed your dehumidifier has to remove all the moisture that is initiall2. See Control Limits page 5 90 1636 TURNING CONTROL ON OFF LCD Display re rilaire e Pressing the ON button will turn on the control FIGURE 3 ON OFF Buttons e Pressing the OFF button will turn off the control e The control will continue to display the measured ON OFF humidity when OFF e The humidity setting cannot be changed when the a a control is OFF Mode Buttons Use to turn control On Off A W Buttons Use to view and set humidity setting CHANGING THE HUMIDITY SETTING e The first press of either the or W button will display the humidity setting on the LCD e Each subsequent push of the up or down buttons will change the setting by 1 e f a button is held down the setting will continually change by 1 every 1 2 second for as long as the button is pressed e The control will exit the humidity setting screen 5 seconds after the last button press release FIGURE 4 UP DOWN Buttons FIGURE 5 Humidity Setting Screen a 0a 2 j HOW DOES THE CONTROL WORK e When the measured humidity is greater than the setting the control will turn on the dehumidifier and ON will blink on the LCD display e 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 CONTROL LIMITS The control limits are used to make sure the dehumidifier does not run when conditions are outside of
3. nty gives you specific legal rights and you may also have other rights which vary from state to state WARRANTY REGISTRATION Visit us on line at www aprilaire com to register your Aprilaire product If you do not have on line access please mail a postcard with your name address phone number email address product purchased date of purchase and dealer name and address to Research Products Corporation P O BOX 1467 Madison WI 53701 Your Warranty Registration information will not be sold or shared outside of this company Thank you P O Box 1467 Madison WI 53701 1467 Phone 800 334 6011 Fax 608 257 4357 www aprilaire com 61000756 4 11 Printed in U S A B2205373A 2011 Aprilaire A division of Research Products Corporation
4. o supply without charge a replacement for any control which is found to be defective within such five 5 year period and which is returned not later than thirty 30 days after said five 5 year period by you to either your original supplier or to Research Products Corporation Madison Wisconsin 53701 together with the installation date of the control THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE CONTROL ITSELF IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID FIVE YEAR PERIOD RESEARCH PRODUCTS CORPORATION S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OTHER THAN DAMAGES FOR PERSONAL INJURIES RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED THIS LIMITED WARRANTY IS VOID IF DEFECTS S RESULT FROM FAILURE TO HAVE THIS UNIT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above exclusion or limitations may not apply to you This warra
5. 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 e Dew Point Lower Limit 40 F e Temperature High Limit 99 F SEQUENCE OF OPERATION e The dehumidifier will turn off if one of the control limits has been exceeded e f the control measures a dew point below 40 F OR a temperature above 99 F the control will deactivate the dehumidifier output if actively dehumiditying the dehumidifier will stop dehumidifying and ON and will blink on the LCD screen see Figure 2 e The control will resume normal operation when conditions fall back within the control limits CLEANING THE CONTROL The surface of the Model 75 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 LIMITED WARRANTY Your Research Products Corporation Aprilaire Dehumidifier Control is expressly warranted for five 5 years from date of installation to be free from defects in materials or workmanship Research Products Corporation s exclusive obligation under this warranty shall be t
6. y in your home The home acts like a sponge so the moisture in the materials of your home is at the same level as the air After drying the air the materials of the home will release moisture back into the air until they are again at the same level As a result it is not uncommon for the dehumidifier to operate for an extended period of time when first installed FIGURE 1 Control Display and User Buttons Energy Savings Tip 1 Adjust the setting to be as high as is comfortable to reduce dehumidifier run time if it feels clammy or smells damp or moldy lower the setting To Save energy turn the dehumidifier control OFF when you open your windows just as you would with air conditioning Energy Savings Tip 2 If vacating your home for an extended period in the summer set the RH at 59 and set your thermostat to as high as you are comfortable setting it in the cooling mode Consult with appropriate professionals regarding the highest temperature that is safe for your pets or possessions This will keep the humidity at a controlled level to help prevent mold while minimizing the amount of cooling energy used LCD DISPLAY FIGURE 2 LCD Display Numbers show current room humidity OR humidity setting SCi A o Wie is displayed Solid ON E E g SET when amp or W is Control On SON pressed The value i is th S a ON OFF a Dehumidifying 4 i Figure g OFF Control Off Blinking ON Control Limit Exceeded
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