2
3
WARNING
Do not use sharp instruments to press touch screen. Only use your fingertips.
Thermostat features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Controls & display overview . . . . . . . . . . . . . . . . . . . . . . 4-5
Wi-Fi set-up & remote access . . . . . . . . . . . . . . . . . . . . . . . 6
TABlE OF CONTENTS
ABOUT yOUR NEW THERMOSTAT
WI-FI SETUP & REMOTE ACCESS
OPERATION
INDOOR AIR QUAlITy FUNCTIONS
Select system mode
(EM HEAT/HEAT/OFF/COOL/AUTO) . . . . . . . . . . . . . . . . . . . 6
Change temperature set point . . . . . . . . . . . . . . . . . . . . . . . 7
Select fan setting (ON/AUTO/CIRC) . . . . . . . . . . . . . . . . . . 7
Clean screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Screen lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Event-Based
™
air cleaning . . . . . . . . . . . . . . . . . . . . . . . 9-10
Humidity control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Automatic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
If dehumidification is installed . . . . . . . . . . . . . . . . . 15-17
If dehumidification is done with air conditioner . . . . . . 17
Fresh Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
ABOUT yOUR NEW THERMOSTAT
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 8620W 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.
PROGRAM SCHEDUlE AND HOlDS
Set time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Understanding program schedules . . . . . . . . . . . . . . . 21-22
Progressive recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Changing program schedules . . . . . . . . . . . . . . . . . . . 23-24
Heat Blast
®
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Program schedule holds
Temporary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-26
Permanent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Away . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Vacation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29
SETUP MENU
How to enter the setup menu
to change settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
User system settings table . . . . . . . . . . . . . . . . . . . . . 34-36
WARRANTy
Limited warranty and registration . . . . . . . . . . . . . . . . . . . 37
WI-FI MAINTENANCE AND TROUBlESHOOTING
Clearing router settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the thermostat from a
my .aprilaire .com account . . . . . . . . . . . . . . . . . . . . . . . . 30
Disabling the Wi-Fi radio . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Troubleshooting Wi-Fi connection . . . . . . . . . . . . . . . . 31-32
