Aprilaire 8920W Safety & Installation Instructions
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Aprilaire 8920W Safety & Installation Instructions

Touch screen wi-fi thermostat with integrated indoor air quality solutions
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See also: Owner's Manual
READ AND SAVE THESE INSTRUCTIONS
Safety & Installation
Instructions

TABLE OF CONTENTS

Thermostat mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Equipment control module mounting . . . . . . . . . . . . . . 2
Thermostat wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Remote temperature sensor (optional) . . . . . . . . . . . . . 3
Equipment control module wiring . . . . . . . . . . . . . . . . . 4
Outdoor temperature sensor (included) . . . . . . . . . . . . . 5
and humidity sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
HVAC WIRING DIAGRAMS
Conventional heat/cool single transformer . . . . . . . . . . 7
Heat pump single transformer . . . . . . . . . . . . . . . . . . . . 8
Heat pump two transformer . . . . . . . . . . . . . . . . . . . . . 8
61000995 B2205906G 10.18
Model 8920W Touch Screen
Wi-Fi Thermostat with Integrated
Indoor Air Quality Solutions
Power and reset options . . . . . . . . . . . . . . . . . . . . . . . 10
Installer setup wizard . . . . . . . . . . . . . . . . . . . . . . . . . 10
General system settings table . . . . . . . . . . . . . . . . . 10
Thermostat system settings table . . . . . . . . . . . 11-12
Humidifier system settings table . . . . . . . . . . . . 13-14
Dehumidifier system settings table . . . . . . . . . . . . . 14
Air cleaning system settings table . . . . . . . . . . . . . . 15
Fresh air system settings table . . . . . . . . . . . . . 15-16
Installer system test . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wi-Fi setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
REFERENCES
Quick reference to controls & display . . . . . . . . . . 17-18
Thermostat features . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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Summary of Contents for Aprilaire 8920W

  • Page 1: Table Of Contents

    Model 8920W Touch Screen Wi‑Fi Thermostat with Integrated Indoor Air Quality Solutions READ AND SAVE THESE INSTRUCTIONS Safety & Installation Instructions TABLE OF CONTENTS INSTALLATION POWER & RESET OPTIONS Thermostat installation location recommendations . . . 2 Power and reset options .

  • Page 2: Installation

    INSTALLATION INSTALLATION THERMOSTAT INSTALLATION LOCATION RECOMMENDATIONS THERMOSTAT WIRING Thermostat should be mounted: Do not mount thermostat: Wire specifications: • On an interior wall, in a frequently • Behind doors, in corners or other dead air spaces . 18-24 gauge thermostat wire occupied space .

  • Page 3: Equipment Control Module Wiring

    INSTALLATION INSTALLATION EQUIPMENT CONTROL MODULE WIRING OUTDOOR TEMPERATURE SENSOR (INCLUDED) Outdoor temperature can be measured by installing an 8052 sensor to the ODT terminals and enabling the outdoor sensor in the installer setup menu . When an outdoor sensor is installed, the features below will be enabled . In heat pump mode the outdoor temperature sensor can be used to efficiently utilize an air source heat pump: •...

  • Page 4: Return Air Temperature Sensor (Optional)

    CONVENTIONAL HEAT/COOL TWO TRANSFORMER (REMOVE JUMPER) the sensor to report false temperature readings . 1 . Locate the Aprilaire Model 8052 sensor in the supply trunk, after the heat exchanger and cooling coils . (See shaded areas in figure below .) 2 .

  • Page 5: Heat Pump Single Transformer

    HVAC WIRING DIAGRAMS INDOOR AIR QUALITY WIRING DIAGRAMS HEAT PUMP SINGLE TRANSFORMER (USE JUMPER WIRE) INDOOR AIR QUALITY WIRING WITH SEPARATE TRANSFORMERS TRANSFORMER HUMIDIFIER HEAT PUMP TRANSFORMER THERMOSTAT DHnc HEATING HEATING DEHUMIDIFIER TRANSFORMER REVERSING VALVE NORMALLY COMPRESSOR CLOSED DAMPER COMPRESSOR TRANSFORMER REVERSING VALVE PILOT RELAY FOR...

  • Page 6: Power & Reset Options

    POWER & RESET OPTIONS SETUP & TESTING The equipment control module is powered from 24VAC . The thermostat is powered from the equipment control HVAC INSTALLER SYSTEM SETTINGS TABLES (CONTINUED) module . In the case of power loss the thermostat will maintain the clock for 24 hours . The thermostat has a memory backup that saves the thermostat settings in case of power interruption .

  • Page 7: Thermostat System Settings Table

    The use of an outdoor temperature sensor (recommended) enables additional Indoor Air Quality functionality . System setting Description (bold) and setting range Please refer to the Model 8920W Owner’s Manual for further information about thermostat features . DeadBand Auto Changeover mode deadband . 3°F (1.5°C) 2 to 9°F (1 to 4 .5°C)

  • Page 8: Dehumidifier System Settings Table

    SETUP & TESTING SETUP & TESTING Air Cleaning System Settings Table Factory default setting System setting Description (bold) and setting range Factory default setting System setting Description (bold) and setting range Second Reminder Appears Determines the month the second “Change Water October Panel”...

  • Page 9: Installer System Test

    IS OFF FOR CONNECT TO 30 SECONDS) WI-FI NETWORKS For detailed instructions for connecting the thermostat to a Wi-Fi network and registering it to an Aprilaire account, refer to the Wi-Fi Quick Start Guide included in the box. 16 English English 17...

  • Page 10: Thermostat Features

    QUICK REFERENCE TO CONTROLS & DISPLAY TROUBLESHOOTING DISPLAY IS BLANK HEAT PUMP ISSUES COOL AIR IN HEAT MODE, INSTALLER MENU OR WARM AIR IN COOL MODE If Power LED is not illuminated at the equipment USB SETTINGS AIR CLEANER • Check wiring at the terminal block to confirm the control module check the following: FILE IMPORT, ETC CONFIGURATION...

  • Page 11: Specifications

    Humidification: 10% to 50% R .H . Setpoint humidity range Dehumidification: 40% to 90% R .H . AprilairePartners.com P.O. Box 1467 Madison, WI 53701-1467 800.334.6011 F: 608.257.4357 U.S. Patent Numbers 8,146,376, 8,596,078 and other patents pending ©2018 Aprilaire – Division of Research Products Corporation 20 English...

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