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Model 8620W Thermostat with
Wi-Fi, Event-Based
Air Cleaning and
Humidity or Ventilation Control
Owner' s Manual
Includes
Operating Instructions and
Warranty Information
READ AND SAVE THESE INSTRUCTIONS

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Table of Contents
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Summary of Contents for Aprilaire 8620W

  • Page 1 Model 8620W Thermostat with Wi-Fi, Event-Based Air Cleaning and ™ Humidity or Ventilation Control Owner’ s Manual Includes Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS...
  • Page 2: Table Of Contents

    .aprilaire .com account . . . . . . . . . . . . . . . . . .
  • Page 3: Controls & Display Overview

    ABOUT yOUR NEW THERMOSTAT ABOUT yOUR NEW THERMOSTAT CONTROlS & DISPlAy OVERVIEW – HOME SCREEN CONTROlS & DISPlAy OVERVIEW – MAIN MENU RooM TEMPERaTURE cURREnT Day oUTDooR TEMPERaTURE RooM RELaTIvE HUMIDITy TEMPERaTURE sETTIng AIR CLEANING BUTTON FAN MODE (ENTERS EVENT-BASED ™ SETTING CLEANING CONTROL SCREEN) FAN MODE HUMIDITy conTRoL BUTTon (EnTERs HUMIDITy conTRoL BUTTON...
  • Page 4: Wi-Fi Setup & Remote Access

    WI-FI SETUP & REMOTE ACCESS OPERATION For detailed instructions for connecting the thermostat to a Wi-Fi network and registering it to an Aprilaire account, CHANGE TEMPERATURE SET POINT SElECT FAN SETTING (ON/AUTO/CIRC) refer to the Wi-Fi Quick start guide included in the box. visit my.aprilaire.com for instructions about using the aprilaire web and mobile apps. When the fan mode is changed during a program event it remains in that mode until the next event starts .
  • Page 5: Clean Screen

    OPERATION INDOOR AIR QUAlITy FUNCTIONS ClEAN SCREEN SCREEN lOCKOUT EVENT-BASED ™ AIR ClEANING Press [MENU] to enter the main menu . The user can disable certain features of the thermostat. Press [AIR ClEANING] on the Home screen to enter Automatic: The air cleaner will run a minimum of 30 minutes every hour .
  • Page 6 INDOOR AIR QUAlITy FUNCTIONS INDOOR AIR QUAlITy FUNCTIONS EVENT-BASED ™ AIR ClEANING HUMIDITy CONTROl (CONTINUED) Air Cleaning Screen Press [HUMIDITy CONTROl] on the Home screen to In automatic mode you will receive the optimum enter the Humidity Control screen . amount of humidity so that your home and its furnishings are protected from the damaging effects of excess condensation or low humidity during...
  • Page 7: Indoor Air Quality Functions

    INDOOR AIR QUAlITy FUNCTIONS INDOOR AIR QUAlITy FUNCTIONS HUMIDITy CONTROl HUMIDITy CONTROl (CONTINUED) (CONTINUED) Humidity Control Screen for Humidification in Automatic Mode In manual mode it is important to anticipate a drop in Outdoor Temperature/Indoor Relative Humidity outdoor temperature and reduce the setting accordingly Recommended to avoid excessive condensation .
  • Page 8: Manual Mode

    INDOOR AIR QUAlITy FUNCTIONS INDOOR AIR QUAlITy FUNCTIONS HUMIDITy CONTROl HUMIDITy CONTROl (CONTINUED) (CONTINUED) Humidity Control Screen for Humidification in Manual Mode If dehumidification is installed the thermostat your comfort is the best measure of how to adjust can be configured, through the installer set-up, to your setting . When first installed, your dehumidifier control dehumidification with either a whole home has to remove all the moisture that is initially in your dehumidifier or with the air conditioner (cooling unit) .
  • Page 9 INDOOR AIR QUAlITy FUNCTIONS INDOOR AIR QUAlITy FUNCTIONS HUMIDITy CONTROl HUMIDITy CONTROl (CONTINUED) (CONTINUED) Energy Saving Tip #1: Energy Saving Tip #2: Humidity Control Screen with only Dehumidification Installed adjust the setting to be as high as is comfortable to If vacating your home for an extended period in the reduce dehumidification run time –...
  • Page 10: Fresh Air

    INDOOR AIR QUAlITy FUNCTIONS INDOOR AIR QUAlITy FUNCTIONS FRESH AIR FRESH AIR (CONTINUED) Press [FRESH AIR] on the Home screen to enter the If ventilation is installed, Fresh Air can operate in four Fresh Air Screen Fresh Air screen . different modes .
  • Page 11: Program Schedule And Holds

    PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE AND HOlDS SET TIME AND DATE UNDERSTANDING PROGRAM SCHEDUlES Press [MENU] to enter the main menu . Press to set the hour . The daily schedule is split into four sections: Press [SET ClK/DATE] to enter clock menu . WAKE: Temperature you would prefer to wake up to .
  • Page 12: Progressive Recovery

    PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE AND HOlDS UNDERSTANDING PROGRAM SCHEDUlES CHANGING PROGRAM SCHEDUlES (CONTINUED) Use the table below to assist in modifying the schedule. Press [MENU] to enter the main menu . Press [Next], then to set the start time of the first event . Press [SET SCHEDUlE] to enter schedule programming . Set temperature Event designator Start time...
  • Page 13: Changing Program Schedules

    PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE AND HOlDS CHANGING PROGRAM SCHEDUlES HEAT BlAST ® PROGRAM SCHEDUlE HOlDS – TEMpORARy (CONTINUED) Press [Next], then [FAN] to set the fan mode of the The thermostat will display the coPy option. Heat Blast will raise the current room temperature 3°F TEMPORARy PROGRAM HOlD ®...
  • Page 14: Permanent

    PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE HOlDS – TEMpORARy PROGRAM SCHEDUlE HOlDS – pERMANENT PROGRAM SCHEDUlE HOlDS – AwAy (CONTINUED) PERMANENT PROGRAM HOlD AWAy Press to adjust the end time of the hold. If Press [HOlD] to permanently hold the temperature at The away feature, if enabled, allows the thermostat to end time is not adjusted, the Temporary Hold will end at its current setting while the schedule is running .
  • Page 15: Vacation

    PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE AND HOlDS PROGRAM SCHEDUlE HOlDS – VACATION PROGRAM SCHEDUlE HOlDS – VACATION (CONTINUED) VACATION PROGRAM HOlD Press [NEXT], then adjust the dehumidification setting. Press [Next], then [FAN] to set the fan mode . Press [Next], then to set end date . This energy saving feature allows you to suspend the Note: If dehumidification in vacation mode is not programmed schedule for extended periods of time .
  • Page 16: Wi-Fi Maintenance And Troubleshooting

    REMOVING THE THERMOSTAT FROM A DISABlING THE WI-FI RADIO TROUBlESHOOTING WI-FI CONNECTION my.aprilaire.com ACCOUNT If you purchase a new Wi-Fi router or change the To turn off the Wi-Fi radio on the thermostat, enter the The Wi-Fi connection status is communicated through...
  • Page 17: Setup Menu

    WI-FI MAINTENANCE AND TROUBlESHOOTING SETUP MENU HOW TO ENTER THE SETUP MENU TO CHANGE SETTINGS Wi-Fi connection status Radio status indicator Message Center Normal Operation . No corresponding message Wi-Fi signal strength is indicated Press [MENU] to enter the main menu . Press to adjust the setting. (selected option by the appropriate number of bars.
  • Page 18: User System Settings Table

    SETUP MENU SETUP MENU USER SySTEM SETTINGS TABlE USER SySTEM SETTINGS TABlE (CONTINUED) The following table is the list of the settings and their details. Default settings are shown in bold . User system Factory default setting setting Description (bold) and setting range User system Factory default setting setting Description (bold) and setting range Setpoint Lockout Prevents or limits changes to the heating and cooling setpoints Disable at the thermostat .
  • Page 19 . 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, product purchased and date of purchase to: Research Products corporation, P.o. BoX 1467, Madison, WI 53701.
  • Page 20 FCC DEClARATION IC STATEMENT Compliance Statement (Part 15.19) RSS-GEN, Sec. 7.1.2 This device complies with Part 15 of the Fcc Rules. operation is subject to the following two conditions: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for 1 . This device may not cause harmful interference, and the transmitter by Industry canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that 2 .
  • Page 21 P.o. Box 1467 • Madison, WI 53701-1467 • Phone: 800/334-6011 • Fax: 608/257-4357 www.aprilaire.com 61001108 5 .15 U.s. Patent numbers 8,146,376, 8,596,078 and other patents pending. B2206470A © 2015 aprilaire – a division of Research Products corporation...

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