Aprilaire 8466 Universal Programmable Heat Pump Thermostat

Description

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 (+/-4º)
• 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 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

• Up to 3H/2C conventional or 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 reminders
• Circulate fan mode
• Auto or manual changeover
• Hardwired or battery powered
• 5-year warranty