Aprilaire 8466 Features

Aprilaire 8400 Series Thermostats
• Dual Fuel Operation (Requires 8052
Outdoor Temperature Sensor)
• Large Backlit Display
• Dual Power
• Maintenance Reminders
• Circulate Fan Mode
• Universal Models Available (8448/8466)
• 5 Year Warranty
For homeowner’s that only want the best. Offering an unprecedented level of control, the
Aprilaire Model 8400 Programmable Thermostats give you state-of-the-art control over your
home’s heating and cooling system.
PO Box 1467 Madison,WI 53701-1467 • Phone–800.334.6011 Fax–608.257.4357
www.aprilairepartners.com
1H/1C 2H/1C HP 2H/2C 3H/2C HP 1H/1C 2H/1C HP 2H/2C 3H/2C HP
New Aprilaire 8400 Series
8444 8446 8448 8463 8465 8466
Aprilaire 8300 Series
8344 8346 8348 8363 8365 8366
Honeywell
5110 5220 5320 6110 6220 6220, 6320
Braeburn
3000 3200 3200,3300 5000 5200 5200, 5300
Robert Shaw
4110 4220 4220, 4320 5110, 6110 5220, 6220 5220, 6220, 6320
White Rodgers
1F86-0471 1F83-0471
1F83-0422
1F83-0471
1F83-0422
1F80-0471 1F85-0471
1F85-0422
1F85-0471
1F85-0422
Non-Programmable Programmable
FEATURES
Aprilaire 8400
Series
Honeywell FocusPRO White Rodgers Blue
Robertshaw Value
Series
4000, 5000, 6000
Braeburn Premier Series
3000, 5000
Display size
4.5 sq. in. 3.75-5.09 sq. in. 4 sq. in. 2.45 sq. in. 1.08 sq. in.
Warranty
5 Year 5 Year 5 Year 5 Year 5 Year
programming scheDule
Non-
Programable,
5/2 or 5/1/1
Non-Programmable,
5/2 or 5/1/1
Non-Programmable,
5/2 or 5/1/1
Non-
Programmable,
5/2 or 7
Non-Programmable, 5/2 or 7
Backlit Display
Yes Yes Yes Yes Yes
poWering methoD
Dual Power Dual Power Dual Power Dual Power Dual Power
numBer of stages
1 Heat/1 Cool to
3 Heat/2 Cool
(Conventional,HP
and Universal
Models)
1 Heat/1 Cool to 3 Heat/2
Cool
1 Heat/1 Cool to 3
Heat/2 Cool
1 Heat/1 Cool to 3
Heat/2 Cool
1 Heat/1 Cool to 3 Heat/2 Cool
system test moDe
Yes No No No No
service inDicator
Yes No Yes* No Yes*
outDoor temp
Yes No No No Some Models
Built in Dual fuel
Yes No No No No
NOTE: Competitive data obtained from manufacturer websites 7/27/09 *Limited to some models and/or applications
PRODUCT COMPARISON
Form No. 5202 08.09
Printed in USA

Aprilaire 8466 Specifications

General

Brand	Aprilaire
Model	8466
Category	Thermostat
Language	English