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The industry's first truly universal thermostat. It will work with any Heating and Air Conditioning systems that require 24 volt control. It has 7 day or 5-1-1 programming and can be hardwired or battery operated. This unit also has auto changeover, which makes it the most affordable auto changeover offered by White Rodgers.
White-Rodgers 1F85-277 Programmable Thermostat

• Available Terminals- R,C,E/W1,W2,G,Y1,Y2,O,B,L
• Hardwired and or Battery Powered.
• Choice of 7 day, 5/1/1 programmable or non-programmable.
• Four time and four temperature settings per program (heat & cool).
• Energy Star rated with energy savings up to 33%.
• Pre-programmed simplifies initial programming.
• 40% Larger LCD with improved contrast for easier reading.
• Lighted display for easier low-light viewing.
• Optional minimum and maximum temperature settings.
• Permanent program retention during power loss, no batteries needed.
• Indefinite setpoint hold or programmable timed hold up to eight hours.
• Air filter change indicator.
• Simple menu to activate features.
• Temporary temperature override until next program.
• Includes two AA Batteries.
• Dimensions are 3.8" x 6.1" x 1.1".
• Display size is 2 ¼" Wide x 1" Tall. Digit Size is ¼" wide x ½" tall.
• 20-30 VAC
• Setpoint 45-90° Degrees F.
• Rated differential: .6° to 1.6° F with adjustable anticipation.
• Universal - Single Stage, Multi-Stage or Heat Pump

• Coded keypad lockout
• Selectable Energy Management Recovery
• Meets ENERGY STAR® specifications
• Meets California Building Code, Title 24
• Fast (FA) or slow (SL) heating cycle anticipation
• Compressor lockout protection (optional)
• Electric heat option
• Standard Systems:
• Multi-Stage-(2- stage heat, 2- stage cool)
• Heat Pump-(2- stage heat, 2- stage cool)
• Single Stage gas, oil, electric
• Product Specifications:
• Stages 2 H / 2 C
• Power Hardwired OR Battery
• Program 7
• Changeover Auto
• Backlight Yes
• Remote 0 In / 0 Out
• Filter Mon. Yes
• Special Features Keypad Lockout, Adj. temp. limits, Multi-stage or heat pump