Aprilaire 8476 User Manual
Model 8476 Thermostat with
™
Event-Based
Air Cleaning
Owner’s Manual
Includes
Operating Instructions and
Warranty Information
READ AND SAVE THESE INSTRUCTIONS
TABLE OF CONTENTS
ABOUT YOUR NEW THERMOSTAT
ABOUT YOUR NEW THERMOSTAT
Thermostat features ..............................................................................3
Controls & display overview ........................................................................4
OPERATION & PROGRAMMING
Select system mode (OFF/HEAT/EM-HEAT/COOL/AUTO) .................................................5
Change temperature setting ........................................................................5
™
Select Event-Based
air cleaning setting ..............................................................6
Reset service reminder messages....................................................................7
Battery installation and Reset Button .................................................................7
Set time and day .................................................................................8
Understanding program schedules ...................................................................8
Progressive recovery ..............................................................................9
THERMOSTAT FEATURES
™
• 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.
• Front battery door access for fast, easy replacement.
• Built in compressor protection.
• Air filter and humidifier service indicators.
• Auto backlight (activated with first button press).
• Separately programmable weekday/weekend schedules.
• Easy to use temperature control can override program schedule at any time.
• Progressive recovery.
Changing program schedules ......................................................................10
Program schedule overrides (temporary, permanent) ....................................................11
WARRANTY
Limited warranty ................................................................................12
Warranty registration.............................................................................12
2 3
ABOUT YOUR NEW THERMOSTAT
OPERATION & PROGRAMMING
CONTROLS & DISPLAY OVERVIEW
CURRENT INDOOR TEMPERATURE
SYSTEM MODE
SETTING
CLEAN AIR
SETTING
SYSTEM MODE
CLEAN AIR
PROGRAM
CURRENT TIME
Includes Event-Based™ Air Cleaning
OUTDOOR TEMPERATURE (OPTIONAL)
TEMPERATURE SETTING
EQUIPMENT STATUS
UP
DOWN
HOLD
HEAT PUMP ONLY
EMERGENCY HEAT (RED)
SYSTEM FAULT (YELLOW)
INDICATOR SHOWS THROUGH HOUSING
SELECT SYSTEM MODE
(OFF/HEAT/EM-HEAT/COOL/AUTO)
Press
to select:
AUTO: Thermostat automatically selects heating or
cooling depending on the indoor temperature.
CHANGE TEMPERATURE SETTING
Press or to adjust the current setting.
In AUTO use
to switch between the HEAT and
COOL setting.
OFF: Heating and cooling systems are off.
QUICK REFERENCE CARD
BATTERY DOOR
CURRENT SCHEDULE PERIOD MESSAGE CENTER LOW BATTERY WARNING
NOTE: BACKLIGHT IS ACTIVATED WITH FIRST BUTTON PRESS AND AUTOMATICALLY TURNS OFF.
4 5
HEAT: Thermostat controls only the heating system.
COOL: Thermostat controls only the cooling system.
EM-HEAT: Thermostat controls emergency/auxiliary
heat. Heat pump will not operate. (Only for heat pumps
with auxiliary heat.)
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