White-Rodgers 1F79-111 Thermostat

The White-Rodgers 1F79-111 is a robust 24V heat pump thermostat designed for reliable control of 2H/1C systems. Engineered as a non-programmable solution, it eliminates the complexity of scheduling while providing high-performance digital accuracy for residential and light commercial HVAC applications. This low voltage thermostat offers a backlit LCD display with enhanced contrast, ensuring clear visibility in dark mechanical rooms or hallways. It features selectable O/B terminals for universal changeover compatibility and integrated compressor short cycle protection to safeguard system longevity. Hardwired for consistent power, the unit also includes permanent program retention during power loss, maintaining your setpoints without the need for constant reconfiguration. Its horizontal profile and classic white finish allow it to easily cover wall marks from older mechanical models, making it a standard choice for field replacements where simplicity and technical reliability are paramount.

Key Benefits

• Multi-Stage Compatibility: Specifically designed for 2-stage heating and 1-stage cooling heat pump applications.
• Precision Control: Maintains temperature within +/- 1 degree for consistent climate management.
• Contractor Friendly: Features a selectable B or O terminal switch to accommodate various reversing valve requirements.
• Enhanced Visibility: Large digital non-programmable thermostat display with backlighting for easy setpoint adjustments.
• System Protection: Built-in 5-minute compressor delay helps prevent hardware damage from rapid cycling.

Common Questions

Is the White-Rodgers 1F79-111 compatible with dual fuel systems?
This model is designed for standard 2H/1C heat pump systems. For dual fuel or fossil fuel applications with external logic, verify the wiring configuration for terminals C, E, G, O/B, W2, and Y.

How is this thermostat powered?
The 1F79-111 is primarily hardwired through the 24V "C" wire, though many technicians utilize AAA batteries for backup to maintain display and settings during service interruptions.

Can I use this for conventional gas or electric heat systems?
No, this specific 70 Series model is dedicated to heat pump systems. For conventional 1H/1C or electric heat, a universal or dedicated conventional model should be selected.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.