Aprilaire® 8400 Non-Programmable Thermostat, Digital, 45 - 99 deg F, +/-1 deg F Differential, Terminal Designations: RC, R, W, Y, G, C, S1, S2, Fan Switching: Circulate, 2 Stage, 24 VAC, 5 A, Battery/24 VAC Hardwired, 4-1/2 Inch L x 5-1/4 Inch W x 1 Inch H
- Displays room temperature, temperature setting, and optional outdoor temperature
- Front battery door access for fast, easy replacement
- Air filter, humidifier, dehumidifier, and HVAC service indicators
- A large 4-1/2 sq Inch LCD screen with a high contrast, backlit display for easy reading
- Simple setup menu for activating optional features
- Quick-reference instructions on board
- Soft-touch keypad
- Compressor lockout protection
- Water panel, air filter, dehumidifier and HVAC service indicators
Application: Cooling and Heating Systems
