Table Of Contents; About Your New Thermostat; Thermostat Features - Aprilaire 8820 Owner's Manual

TABLE OF CONTENTS

ABOUT YOUR NEW THERMOSTAT
Thermostat features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Controls & display overview . . . . . . . . . . . . . . . . . . . . . . 4-5
WI-FI SETUP
Wi-Fi set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
OPERATION
Select system mode
(EM HEAT/HEAT/OFF/COOL/AUTO) . . . . . . . . . . . . . . . . . . . 8
Change temperature set point . . . . . . . . . . . . . . . . . . . . . . . 9
Select fan setting (ON/AUTO/CIRC) . . . . . . . . . . . . . . . . . . 9
Clean screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Screen lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INDOOR AIR QUALITY FUNCTIONS
Event-Based ™ air cleaning . . . . . . . . . . . . . . . . . . . . . . 11-12
Humidity control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Automatic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-16
If dehumidification is installed . . . . . . . . . . . . . . . . . 17-18
If dehumidification is done with air conditioner . . . . . . 19
Fresh Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
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PROGRAM SCHEDULE AND HOLDS
Set time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Understanding program schedules . . . . . . . . . . . . . . . 23-24
Progressive recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Changing program schedules . . . . . . . . . . . . . . . . . . . 25-26
Heat Blast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
®
Program schedule holds
Temporary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28
Permanent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Away . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Vacation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-31
WI-FI MAINTENANCE AND TROUBLESHOOTING
Clearing router settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removing the thermostat from a
my .aprilaire .com account . . . . . . . . . . . . . . . . . . . . . . . . 32
Disabling the Wi-Fi radio . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Troubleshooting Wi-Fi connection . . . . . . . . . . . . . . . . 33-34
SETUP MENU
How to enter the setup menu
to change settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
User system settings table . . . . . . . . . . . . . . . . . . . . . 36-39
WARRANTY
Limited warranty and registration . . . . . . . . . . . . . . . . . . . 40

ABOUT YOUR NEW THERMOSTAT

Do not use sharp instruments to press touch screen. Only use your fingertips.

THERMOSTAT FEATURES

• Remote access and control over Wi-Fi .
• Indoor air quality control .
- Humidification automatic or manual control .
- Dehumidification .
- Event-Based air cleaning .
™
- Ventilation with temperature and humidity limits .
Note: The 8820 can only control one of the following per installation: ventilation, whole home dehumidifier
or humidifier .
• Temperature control .
• Heat Blast ® raises the room temperature 3°F to 5°F .
• Large touch screen with adjustable backlight - constant backlight available .
• Message center provides feedback, instructions, and service reminders .
• 7 day programmability .
• Displays room temperature, room humidity, temperature setting, and outdoor temperature .
• Programmable fan control with fan circulation mode .
• Easy to use temperature control can override program schedule at any time .
WARNING
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