Jackson Systems

Aprilaire 8465 Programmable 2H/1C Thermostat, 5+1+1 Day with LCD

BRAND: Aprilaire SKU: 8465

This product has been discontinued by the manufacturer


Aprilaire 8466 Universal Programmable Heat Pump Thermostat

SKU: 8466

BRAND: Aprilaire
View Replacement


  • Large 4.5 square inch LCD with high contrast for easier reading
  • Controls Heat Pump Systems with 2 Stages Heat / 1 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 Powered…choice of battery powered or hardwired, for all applications – note for heat pump models (8446, 8465) 24 VAC must be connected in order for the system fault and emergency heat indicators to operate.
  • 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 (+/-4º)
  • Fahrenheit & Celsius
  • Configures as manual heat/cool, or with auto changeover
  • 5 year warranty
  • Adjustable differential for 1st, 2nd, 3rd stage


  • Terminals: Rc, R, W, Y, G, C, S1, S2, 0/B, L, W2
  • 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 99°F (0° to 40°C)
  • Outdoor temperature measurement Display range: -20° to 130°F (-30° to 55°C)
  • Temperature setting range
  • Heat: 45° to 90°F (7° to 32°C)
  • Cool: 50° to 99°F (10° to 37°C)
  • Dimensions: 5.25" x 4.50" x 1.00"

Features and Benefits

  • 2H/1C heat pump systems, millivolt compatible
  • 5/1/1 or 5/2 day programmable
  • Large 4.5 in2 LCD screen with high contrast
  • Easy-to-use temperature control and override program schedule
  • Progressive memory
  • Indefinite setpoint hold
  • Displays outdoor temperature with optional outdoor sensor (8052)
  • Removable battery cover for easy battery replacement
  • Easy-to-wire terminal block
  • Permanent memory retention
  • Water panel, air filter and service indicators
  • Circulate fan mode
  • Auto or manual changeover
  • Hardwired or battery powered
  • 5-year warranty

Additional information

Power Type

, ,

Auto Changeover



Terminal Designations

, , , ,




2 Heat/1 Cool Heat Pump






Vacation Hold

Filter Monitor

UPC 686720846502
Imprinting Available Yes


There are no reviews yet.

Be the first to review “Aprilaire 8465 Programmable 2H/1C Thermostat, 5+1+1 Day with LCD”
Are you a contractor? Join TradesElite Today!