Table Of Contents; About Your New Thermostat - Aprilaire 8400 Series Owner's Manual

TABLE OF CONTENTS

ABOUT YOUR NEW THERMOSTAT � � � � � � � � � � � � � � � � � � 3
Thermostat Features � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
How to Identify Your Thermostat's
Model Number� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
QUICK REFERENCE TO CONTROLS & DISPLAY � � � � � 4
Non Programmable Models
(8444, 8446, 8448) � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
Programmable Models
(8463, 8465, 8466)� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5
2
OPERATION (ALL MODELS) � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Select System Mode
(AUTO/OFF/HEAT/COOL/EM-HEAT) � � � � � � � � � � � � � � 6
Change Temperature Setting � � � � � � � � � � � � � � � � � 6
Select Fan Setting (ON/AUTO/CIRC) � � � � � � � � � � � 7
Reset Service Reminder Messages� � � � � � � � � � � � 7
Battery Installation and Reset Button � � � � � � � � � 7
OPERATION & PROGRAMMING
(PROGRAMMABLE MODELS ONLY 8463, 8465, 8466)
Set Time and Day � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Understanding Program Schedules� � � � � � � � � � � 8
Progressive Recovery � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Changing Program Schedules � � � � � � � � � � � � � � � 10
Program Schedule Overrides
(Temporary, Permanent)� � � � � � � � � � � � � � � � � � � � � � � 11
LIMITED WARRANTY � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 12
THERMOSTAT FEATURES
ALL 8400 SERIES THERMOSTATS
• 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
� � � 8
replacement�
• Built in compressor protection�
• Circulation fan mode for air cleaning�
• Air filter, humidifier, dehumidifier, and HVAC
service reminders�
• Auto backlight (activated with first button press).
PROGRAMMABLE MODELS ONLY (8463, 8465, 8466)
• Separately programmable weekday/weekend
schedules�
• Easy to use temperature control can override
program schedule at any time�
• Progressive recovery�

ABOUT YOUR NEW THERMOSTAT

HOW TO IDENTIFY YOUR THERMOSTAT'S
MODEL NUMBER
To locate the model number, remove the
battery cover�
Model 8444
Model 8446
Model 8448
Model 8463
Model 8465
Model 8466
MODEL
NUMBER
Heat/Cool Non-Programmable
Heat Pump Non-Programmable
Heat/Cool or Heat Pump
Multi-Stage Non-Programmable
Heat/Cool Programmable
Heat Pump Programmable
Heat/Cool or Heat Pump
Multi-Stage Programmable
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