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  Top » Catalog » Thermostats & Accessories » Programmable Thermostats » RES 8466   
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Aprilaire 8466 - 5/2 or 5/1/1 Programmable Thermostat (2H/2C, 3H/2C)
[RES 8466]
Aprilaire 8466 - 5/2 or 5/1/1 Programmable Thermostat (2H/2C, 3H/2C)
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Aprilaire 8466 5/2 or 5/1/1 Day Universal Programmable Thermostat (Heating/Cooling 2H/2C or Heat Pump 3H/2C)

Get more than you bargained for with an Aprilaire 8400 Series thermostat. These thermostats are for the contractor or homeowner that are looking for an attractive, programmable thermostat that is heavy on features, easy to install and priced right. The 8463 has a large, back-lit display, dual power option, circulate fan mode for better IAQ, a built-in user manual, maintenance reminders and it's backed with an impressive 5-year warranty! Below are some of the other features packed into each thermostat.

Features Packed in to Each 8466 Thermostat:

  • 8466 is a universal 2H/2C or HP 3H/2C thermostat - 2 heat/2 cool or Heat Pump 3 heat/2 cool
  • Large 4.5 square inch LCD with high contrast for easier reading
  • Bright, white backlit display is easy to read
  • Displays room temperature, temperature setting and outdoor temperature simultaneously
  • Removable battery cover for fast, easy replacement
  • Dual Powered...choice of battery-powered or hardwired, for all applications
  • Easy-to-wire terminal block
  • Millivolt compatible
  • Outdoor temperature (requires 8052 outdoor temperature sensor)
  • Dual fuel operation built in – eliminates need for a dual fuel kit (requires 8052 outdoor temperature sensor)
  • Water panel, air filter, dehumidifier and HVAC service indicators
  • Simple “set-up” menu to activate optional features
  • Soft-touch keys
  • Circulate fan mode
  • Compressor lockout protection
  • Quick reference instructions on board
  • Display temperature offset (+/-4º)
  • Fahrenheit & Celsius
  • Configures as manual heat/cool, or with auto changeover
  • 5 year warranty
  • Adjustable differential for 1st, 2nd, 3rd stage
  • Easy to use temperature control and override program schedule at anytime
  • Progressive recovery
  • Permanent program retention during power loss
  • Indefinite setpoint Hold
  • Choice of 5/1/1 day programmable, 5/2 day

Product Specifications Overview:

  • Product Application:
    • Standard Systems gas, oil, electric
    • Single Stage/Heat Pump/Multi-Stage
    • Millivolt Systems
    • Terminal Designations: Rc, R, W, Y, G, C, S1, S2, 0/B, L, W2, Y2
  • Dimensions:
    • Thermostat: 5.25" x 4.5" x 1"
    • Individual Carton: 5.8" x 4.8" x 1.75"
  • Thermal Specifications:
    • Control Range: 45º to 99º F (7º to 32ºC)
    • Display Range: 32º to 99ºF (0º to 40ºC)
    • Accuracy: +/- 1ºF (+/- .5ºC)
    • Storage Temperature: -30º to 140ºF (-34.4º to 60ºC)
    • Operating Humidity: 5% to 90% Relative Humidity
    • Operating Ambient Temperature: 32º to 120ºF (0º to 48.9ºC)
    • Shipping Temperature Range: -30º to 140ºF(-34.4º to 60ºC)
  • Electrical Specifications:
    • 24 VAC (18-30 VAC)
    • 1 amp maximum load per terminal
    • 2.5 amp total maximum load (all terminals)
    • AC Power: 18-30 Volt AC
    • DC Power: 3.0 Volts DC (2 “AA” Alkaline batteries included)

Available Product Literature:
(These files require the free Adobe Reader to view.)

Manufacturer's UPC: 686720846601
For more information, please visit this products webpage.
This product was added to our catalog on Thursday 05 May, 2011.
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