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Aprilaire 8466 Programmable Universal Thermostat

Aprilaire 8466 Programmable Universal Thermostat

About This Thermostat

MFG: Aprilaire
MFG#: 8466
Our#: 174874
Programmable: Yes (5/1/1 or 5/2)
Stages: 3H & 2C
System Compatibility: Single Stage, Millivolt, Heat Pump, Multi-Stage
Power Options: Battery, 24 VAC Hardwire
Heat/Cool Changeover: Automatic or Manual
Programmable Fan: Yes
Temperature Limits: No
Keypad Lockout: No
Backlight: Yes
Vacation Hold: No

Aprilaire 8466 Programmable Universal Thermostat

Are you looking for an attractive thermostat that is packed with features but low on price?  You have found it!  The new Aprilaire 8400 series thermostats have all the features you are looking for at a value price!

Model 8466 is universal and will control  - Standard Systems gas / oil / electric.  Single Stage/Heat Pump/Multi-Stage, Millivolt Systems

STANDARD FEATURES:

  • Large 4.5 square inch LCD with high contrast for easier reading
  • Controls 3 Stages Heat / 2 Stages Cool
  • Bright, white backlit display is easy to read
  • 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, or 5/2 day
  • Displays room temperature, temperature setting and outdoor temperature (with 8052 sensor) simultaneously
  • Removable battery cover for fast, easy replacement
  • Dual fuel operation built in - eliminates need for a dual fuel kit (requires 8052 outdoor temperature sensor)
  • 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)
  • Permanent memory retention during power outage
  • Water panel, air filter, dehumidifier and HVAC service indicators
  • Simple "set-up" menu to activate optional features
  • Soft-touch keys
  • Circulate fan mode (if the fan has been off for 20 minutes the fan will be activated for a 10 minute cycle. Use this mode for a balance of energy savings and air circulation/cleaning)
  • Compressor lockout protection
  • Quick reference instructions on board
  • Display temperature offset (+/-4)
  • Fahrenheit & Celsius
  • Configures as manual heat/cool, or with auto changeover
  • 5 year warranty
  • Adjustable differential for 1st, 2nd, 3rd stage

SPECIFICATIONS:

Terminals: Rc, R, W, Y, G, C, S1, S2, 0/B, L, W2, Y2
Operating voltage 24 VAC (18 - 30 VAC)
Current - Maximum: 2.5A (total), 1.0A (single output)
Maximum surge current: 5A
Power supply Dual power. Can be battery or 24 VAC powered (When both the sources are available, battery will be used as back up power.)
Battery power: AA size alkaline battery x 2
Battery life: Approximately 1 year
Outdoor temperature sensor Maximum distance: 300 feet
Room temperature measurement Display range: 32 to 99F (0 to 40C)
Outdoor temperature measurement Display range: -20 to 130F (-30 to 55C)
Temperature setting range
Heat: 45 to 90F (7 to 32C)
Cool: 50 to 99F (10 to 37C)
Dimensions: 5.25" x 4.50" x 1.00"