Aprilaire 8920W Safety & Installation Instructions

Thermostat
SAFETY & INSTALLATION
INSTRUCTIONS
Model 8920W
Touch Screen Wi-Fi
Thermostat with Integrated
Indoor Air Quality Solutions
TABLE OF CONTENTS
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Thermostat Location
Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . 2
Thermostat Mounting . . . . . . . . . . . . . . . . . . . . . . 2
Equipment Control Module Location
Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . 2
Equipment Control Module Mounting . . . . . 3
Thermostat Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . 3
Remote Temperature Sensor
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equipment Control Module Wiring. . . . . . . . . 5
Outdoor Temperature Sensor
(Included) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional Wireless Outdoor
Temperature and Humidity Sensor . . . . . . . 6
Return Air Temperature Sensor
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leaving Air Temperature Sensor
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HVAC WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . 8
Conventional Heat/Cool
Single Transformer. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Conventional Heat/Cool
Two Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Heat Pump Single Transformer . . . . . . . . . . . . 9
Heat Pump Two Transformer. . . . . . . . . . . . . . . 9
INDOOR AIR QUALITY WIRING DIAGRAMS . . . . 10
Indoor Air Quality Wiring with
Separate Transformers. . . . . . . . . . . . . . . . . . . . 10
Indoor Air Quality Wiring with
a Single Transformer . . . . . . . . . . . . . . . . . . . . . . 10
POWER & RESET OPTIONS . . . . . . . . . . . . . . . . . . . . . . 11
SETUP & TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installer Setup Wizard . . . . . . . . . . . . . . . . . . . . . . 11
HVAC Installer System Settings Tables . . . . 11
General System Settings. . . . . . . . . . . . . . . . 11
Thermostat System Settings . . . . . . . 12-13
Indoor Air Quality System
Settings Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
 HumidierSystemSettings . . . . . . . . . 14-15
 DehumidierSystemSettings . . . . . . . . . 16
Air Cleaning System Settings. . . . . . . . . . 16
Fresh Air System Settings . . . . . . . . . . . 17-18
Installer System Test. . . . . . . . . . . . . . . . . . . . . . . 18
Wi-Fi Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
QUICK REFERENCE TO CONTROLS
& DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
THERMOSTAT FEATURES . . . . . . . . . . . . . . . . . . . . . . . 21
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . .22
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Product Info &
Digital Manual

Aprilaire 8920W Specifications

General

Model	8920W
Category	Thermostat
Wi-Fi Connectivity	Yes
Touchscreen	Yes
Remote Access	Yes
Humidity Control	Yes
Programmable	Yes
Power Source	24 VAC
Dehumidification Control	Yes
Ventilation Control	Yes
Display	Color Touchscreen
Smart Home Compatibility	Amazon Alexa, Google Assistant
Control Type	Digital
Installation	Professional installation recommended
Compatibility	HVAC systems
Humidity Control Range	15% - 65%