Model 8476W Thermostat with Wi-Fi and Event-Based™ Air Cleaning Safety & Installation Instructions READ AND SAVE THESE INSTRUCTIONS
Table of contents WI-FI Setup 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. WI-FI SETUP Wi-Fi setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Installation Outdoor temperature sensor (optional) Thermostat mounting Outdoor temperature can be measured by attaching an 8052 sensor to the S1 and S2 terminals. System setting #05 (Remote sensor) is used to enable sensor. • Install on side of building out of direct sunlight (north side recommended). • Mount above snow line. 2. P ull wires through the opening on the back of the rear mounting plate.
Installation Wiring terminal Wiring – single Transformer (use Jumper Wire) for HEAT/COOL System 2nd HEATING NOT USED 2nd COOLING G NOT USED FAN Y OUTDOOR TEMP SENSOR 1st HEATING COOLING TRANSFORMER 2nd HEATING 2nd COOLING W NOT USED NOT USED G OUTDOOR TEMP SENSOR Y C S1 S2 O/B L W2 Y2 RC R 6 W 1st COOLING Y G FAN W 1st HEATING RC R 1st COOLING * Jumper between RC & R is used in single transformer systems (see wiring diagrams).
Installation Setup & Testing System setup instructions Wiring – TWO TransformerS (REMOVE Jumper Wire) for HEAT Pump System The following instructions show how to enter the system setup menu and change settings. The table on the following pages lists the settings and their details. Default settings are shown in bold. Some settings are only available based on other setting values.
Setup & Testing Setup & Testing System setup instructions (continued) System setup instructions (continued) The Model 8476W thermostat has the option of being used in heat pump or heat/cool systems. Switch SW1 located on the back of the thermostat is used to select this. System setting number 01 will only be shown on these models to display the position of SW1. SW1 HEAT/COOL HEAT PUMP HC HP 90-2034 10 Factory default setting (bold) and setting range System setting Description 01.
12 Setup & Testing Setup & Testing System setup instructions (continued) System setup instructions (continued) System setting Description 10. T emperature Sensor Offset Field adjustment of temperature sensor. 12. Auto Changeover Factory default setting (bold) and setting range Factory default setting (bold) and setting range System setting Description 0° (no offset applied) -4°F to +4°F (-2°C to +2°C) 23. Second Stage Differential Second stage differential. 1°F (0.5°C) 1°F to 9°F (0.
14 Setup & Testing Setup & Testing System setup instructions (continued) System setup instructions (continued) Factory default setting (bold) and setting range System setting Description Factory default setting (bold) and setting range Amount of heating when Heat Blast is initiated. 3°F (1.5°C) 3°F to 5°F (1.5°C to 2.5°C) 55. Change Water Panel Reminder The time until the first Change Water Pnl message is displayed. OFF 1 to 12 months 37.
Setup & Testing Setup & Testing System test mode System test mode (continued) The system test mode is used to test a system after installation. The outputs of the thermostat can be manually activated one at a time to test their function. The following instructions show how to enter the test mode and turn outputs on and off. The charts on the following pages show the output status for each test step for Heat/Cool and Heat Pump mode.
Setup & Testing Setup & Testing Test steps for Heat/Cool System Setting Step Key Input 1st [UP] #50 Heat #52 Cool #53 Fan 2nd [UP] [DOWN] 1st [UP] 2nd [UP] [DOWN] [UP] [DOWN] #07 0 : Gas 1 : Elec 0 : Gas 1 : Elec 01 HEATING ON (W) ON ON ON ON 02 HEATING ON (W2) Test steps for Heat Pump Display (Output) 02 01 COOLING COOLING ON (Y2) ON (Y) System Setting 01 FAN ON (G) Step ON ON ON ON #50 Heat 2nd [UP] 1st [UP] #51 Aux 2nd [UP] #03 01 AUX HEATING ON (W) 02 AUX HEATING ON (W2) 0:O 1:B 0:
Quick Reference to controls & Display Current Indoor Temperature Current Time Thermostat Features Outdoor Temperature (OPTIONAL) System Mode Setting Temperature SetTING Equipment Status clean air Setting UP System Mode clean air Program • Event-Based™ Air Cleaning. • Large, clear, backlit display is easy to read – even in the dark. • Displays room temperature, temperature setting, and optional outdoor temperature. • Built in compressor protection.
Troubleshooting Display is blank • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. Temperature settings do not change Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40° to 90°F (4° to 32°C). • Cool: 50° to 99°F (10° to 37°C).
Specifications Environment Thermal Outdoor temperature sensor Maximum distance: 300 feet Temperature Operating: 32° to 120°F (0° to 48.9°C) Shipping: -30° to 140°F (-34.4° to 60°C) Room temperature measurement Display range: 32° to 99°F (0° to 40°C) Relative humidity Operating: 5% to 90% R.H.
