Aprilaire 8920W Owner's Manual
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Aprilaire 8920W Owner's Manual

Wi-fi indoor air quality thermostat
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Model 8920W Wi-Fi Indoor Air Quality Thermostat
Owner's Manual
Includes Operating Instructions and

Warranty Information

READ AND SAVE THESE INSTRUCTIONS
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Summary of Contents for Aprilaire 8920W

  • Page 1: Warranty Information

    Model 8920W Wi-Fi Indoor Air Quality Thermostat Owner’s Manual Includes Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS...

  • Page 2: Table Of Contents

    WARNING Do not use sharp instruments to press touch screen. Only use your fingertips. TABLE OF CONTENTS FEATURES FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 •...

  • Page 3: Display Overview

    DISPLAY OVERVIEW HOME SCREEN THERMOSTAT NAME HEAT SETTING COOL SETTING CURRENT DATE AND TIME CURRENT SCREEN RELATED HELP ROOM TEMPERATURE & HUMIDITY MAIN MENU WI-FI INDICATOR HEATING AND HUMIDIFIER AND/ COOLING OR DEHUMIDIFIER EQUIPMENT INDOOR AIR STATUS QUALITY SCREEN & SIMPLE STATUS OUTDOOR TEMPERATURE AIR CLEANING...

  • Page 4: Wi-Fi Setup & Remote Access

    Android device except where otherwise noted . The screen layout for iOS devices may vary from what’s shown . STEP 1 – DOWNLOAD THE APP STEP 2 – CREATE A NEW APRILAIRE ACCOUNT Search and install the Aprilaire Wi-Fi Open the app on your device .
  • Page 5 Confirm your thermostat is in Wi-Fi setup mode . The signal indicator will be strobing: Note: Out of the box, your Aprilaire Wi-Fi thermostat should be in Wi-Fi setup mode . It may take up to 30 seconds for the thermostat to enter Wi-Fi setup mode after power up or reset .
  • Page 6 Cabin, Cottage), Zip Code and Time Zone . Tap Done . Congratulations! You have successfully registered your thermostat . You can now access and control your thermostat from your mobile device . ADDITIONAL RESOURCES Visit my.aprilaire.com for additional app instructions .

  • Page 7: Thermostat Operation

    THERMOSTAT OPERATION SELECT SYSTEM MODE Touch MODE to open the Thermostat Mode screen . Select the desired mode . Done Touch to save any changes . Back Touch to discard your changes . The thermostat will automatically discard your changes if one minute elapses without touching Done .

  • Page 8: Select Fan Setting

    THERMOSTAT OPERATION SELECT FAN SETTING When the fan mode is changed during a scheduled event, it remains in that mode until the next event starts . To learn about scheduled events, see pages 11-14 . Touch to open the Fan Mode screen .

  • Page 9: Set Time And Date

    THERMOSTAT OPERATION SET TIME AND DATE The thermostat will automatically retrieve Time and Date from the internet (if connected and registered) . If the thermostat is used without an internet connection the time can be manually adjusted . To set the time: Menu Touch to open the Menu screen .
  • Page 10 THERMOSTAT OPERATION SET TIME AND DATE (continued) To set the date: Touch the current date . The Set Date pop-up will appear . Touch the arrows to set correct month, date and year . Done Touch to save any changes . Back Touch to discard your changes .

  • Page 11: Schedule And Holds

    SCHEDULE AND HOLDS UNDERSTANDING SCHEDULES The daily schedule is split into four events: WAKE: Temperature when you wake up in the morning . LEAVE: Temperature when you are away from the house . RETURN: Temperature when you return home . SLEEP: Temperature you would prefer while sleeping .

  • Page 12: Changing Schedules

    SCHEDULE AND HOLDS CHANGING SCHEDULES Touch Menu to open the Menu screen . Touch Schedule to open the Set Schedule screen . The current day of the week will be displayed on the Set Schedule screen . From this screen you can change the start time, heat and cool setpoints, and fan mode for each event for this day of the week .
  • Page 13 SCHEDULE AND HOLDS CHANGING SCHEDULES (continued) To set the temperature: Touch the event heat or cool setpoint . The Set Temperature pop-up will appear . Touch the arrows to set the desired event temperature . Touch Done to save any changes . Back Touch to discard your changes .
  • Page 14 SCHEDULE AND HOLDS CHANGING SCHEDULES (continued) To copy one day's schedule to other days: Copy this Day Touch to open the Schedule Menu screen . Select the day(s) you want to copy the schedule to . Touch Done when finished . You will then be prompted to confirm your selections .

  • Page 15: Schedule Holds

    SCHEDULE AND HOLDS SCHEDULE HOLDS Temporary Hold Touch the arrows to set your desired temperature . The Set Temporary Hold pop-up will appear . The temporary hold will run until the current schedule event ends . You can select a different time by touching arrows on the Set Temporary Hold pop-up .

  • Page 16: Vacation Hold

    SCHEDULE AND HOLDS SCHEDULE HOLDS (continued) Vacation Hold This energy saving feature allows you to suspend the programmed schedule for extended periods of time . The temperature and dehumidification setpoint (optional) you select will be maintained continuously until the vacation hold end date and time . Once the end date and time have been surpassed, the previously programmed schedule will resume .

  • Page 17: Heat Blast® (If Installed)

    SCHEDULE AND HOLDS SCHEDULE HOLDS (continued) Heat Blast® (if installed) Heat Blast will raise the current room temperature by 3°F to 5°F once, and then resume normal operation . This feature is only available if it was enabled by your installer and the thermostat is in Heat or Emergency Heat mode .

  • Page 18: Status

    STATUS The Operating Status screen shows you the current status of all equipment controlled by this thermostat . ON indicates that the equipment is currently active . OFF indicates that the equipment is not active and cannot become active without changing its corresponding mode .

  • Page 19: Alerts

    ALERTS Alerts are used to communicate special information to you . Some of the alerts are controlled by your settings (i . e . High/Low Temperature, High/Low Relative Humidity [RH]), and others are system alerts that may require a specific action by you or your installer to resolve .
  • Page 20 ALERTS Touch to disable the High RH or Low RH limit . Touch to enable the High RH or Low RH limit . Touch the arrows to adjust the corresponding limit . Touch Done to save your changes . Touch Back to close the pop-up without saving any changes .

  • Page 21: Maintenance Reminders

    ALERTS MAINTENANCE REMINDERS Maintenance reminders appear when it is time to service your equipment, based on the limits set by your installer . In some cases, you may need to service your installed equipment before the maintenance reminder has appeared on the thermostat .

  • Page 22: Weather

    WEATHER The Weather screen displays the current weather, two-day forecast and current pollen information, if available . The information displayed is based on your postal code . WEATHER Touch to open the Weather screen . Touch Settings to open the Weather Settings screen .

  • Page 23: Indoor Air Quality Functions

    INDOOR AIR QUALITY FUNCTIONS HUMIDITY CONTROL This thermostat can control the relative humidity (RH) in your home when you have an additional humidifier and/or dehumidifier installed . Dehumidification can be achieved one of two ways, either with a whole-home dehumidifier or with your air conditioning equipment .

  • Page 24: Manual Mode

    INDOOR AIR QUALITY FUNCTIONS HUMIDITY CONTROL (continued) Manual Mode In manual mode, it is important to anticipate a drop in outdoor temperature and to reduce the setting accordingly to avoid excessive condensation . Use the table on the right side of the Humidifier Control screen to determine the proper RH setting .

  • Page 25: Event Based™ Air Cleaning

    INDOOR AIR QUALITY FUNCTIONS EVENT BASED™ AIR CLEANING If an air cleaner is installed, the thermostat will activate the fan for the purpose of air cleaning . Touch Air Cleaning on the home screen to open the Air Cleaner Control screen . TEMPORARY EVENTS Event Clean (3 Hour): When you need the fan to run non-stop for a short while,...

  • Page 26: Fresh Air

    INDOOR AIR QUALITY FUNCTIONS FRESH AIR If ventilation is installed, fresh air is periodically drawn into your home through your heating and cooling system . The schedule is based on installer- calculated requirements . Occasionally, you may need more fresh air than what is scheduled .

  • Page 27: User Preferences

    USER PREFERENCES This thermostat comes with a programmable schedule, a temperature scale set to Fahrenheit, default Away settings and with no screen lockout in place . These settings may not suit every homeowner’s needs and can be adjusted in the User Preferences screen . Touch Menu to open the Menu screen .

  • Page 28: Away Button

    USER PREFERENCES AWAY BUTTON While this thermostat has heating and cooling setpoints pre-programmed for use with the Away feature, you may prefer other temperatures . The steps below do not activate or deactivate the Away mode, but they do tell the thermostat what setpoints to use when you choose to activate it .
  • Page 29 USER PREFERENCES AWAY BUTTON (continued) Touch to open the Set Fan Mode pop-up . Select the fan mode to be used when Away is active . Touch Done to save any changes . Touch Back to discard your changes . Done Touch to save all changes .

  • Page 30: Lockouts

    USER PREFERENCES LOCKOUTS A lockout is used to prevent any changes to the thermostat from the Home screen . Touch Lockouts to open the Lockouts screen . Select Full to enable the thermostat lockout . Select None to disable the thermostat lockout .

  • Page 31: Temperature Scale

    USER PREFERENCES TEMPERATURE SCALE The temperature scale on the thermostat can be set to Fahrenheit or Celsius . This affects all settings in the thermostat . Touch Temperature Scale to open the Temperature Scale screen . Select Fahrenheit or Celsius . Done Touch to save any changes .

  • Page 32: Schedule Settings

    USER PREFERENCES SCHEDULE SETTINGS While the schedule settings can be user-adjusted, it may become necessary to reset the schedule to the factory defaults or to disable the schedule entirely . Schedule Settings Touch to open the Schedule Settings screen . Select to disable the schedule .

  • Page 33: Clean Screen

    CLEAN SCREEN The touch screen can be temporarily disabled in order to clean it . Use a damp cloth with water or household glass cleaner . Do not spray liquids directly on the screen . Touch Menu to open the Menu screen . Touch Clean Screen to disable the...

  • Page 34: Wi-Fi Maintenance And Troubleshooting

    WI-FI MAINTENANCE AND TROUBLESHOOTING WI-FI STATUS INDICATOR Connected, operating normally. Internet connection lost. Wi-Fi connection lost. You should have one to four bars . Thermostat is connected to the access Thermostat is not connected to the point/router, but not the internet . Wi-Fi access point/router .

  • Page 35: Clearing Router Settings

    WI-FI MAINTENANCE AND TROUBLESHOOTING CLEARING ROUTER SETTINGS If you purchase a new Wi-Fi router or change the security settings on your existing router, the router settings in the thermostat need to be cleared so the new Wi-Fi router settings can be entered . To clear router settings: Touch Menu...

  • Page 36: Removing The Thermostat From A User Account

    WI-FI MAINTENANCE AND TROUBLESHOOTING REMOVING THE THERMOSTAT FROM A USER ACCOUNT This thermostat can only be registered to one User Account . If this thermostat has previously been registered to an account that is no longer active or no longer applicable to this home, it will need to be unregistered before it can be added to a new User Account .

  • Page 37: Disabling The Wi-Fi Radio

    WI-FI MAINTENANCE AND TROUBLESHOOTING DISABLING THE WI-FI RADIO The Wi-Fi radio can be manually disabled while maintaining all other network settings . To disable the thermostat’s Wi-Fi radio: Touch Menu to open the Menu screen . Wi-Fi Settings Touch to open the Wi-Fi Settings screen .

  • Page 38: Limited Warranty

    FIVE YEAR LIMITED WARRANTY Your Research Products Corporation Aprilaire® thermostat 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 to supply, without charge, a replacement for any thermostat which is found to be defective within such five (5) year period and which is returned, together with the date of installation, no 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 .
  • Page 39 (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement . Aprilaire.com U . S . Patent Numbers 8,146,376, 8,596,078 and other patents pending P . O . Box 1467 Madison, WI 53701-1467 ©2016 Aprilaire – A division of Research Products Corporation 800-545-2219 F: 608-257-4357 10011744 B2206994A 7 . 1 6...

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