Copeland Comfort Control (White Rodgers) 1F78-144 Thermostat

The White Rodgers 1F78-144 is a professional-grade non-programmable digital thermostat designed for single-stage 1H/1C systems. Engineered for 24V AC and millivolt applications, this horizontal-mount control serves as the direct replacement for legacy 1F30-913 and CD-130ME models. It features a high-contrast LCD with a backlight for clear visibility in low-light environments, making it a reliable choice for residential upgrades, light commercial use, and RV furnace or cooling systems. As a battery-powered thermostat utilizing two AAA batteries, it eliminates the need for a common wire (C-wire) in most retrofits, ensuring broad compatibility with gas, oil, and electric HVAC systems.

Key Benefits for HVAC Professionals:

• Universal Compatibility: Optimized for conventional heating and cooling, heat pumps without auxiliary heat, and millivolt systems.
• Precision Calibration: Electronic accuracy maintains consistent setpoints within 1 degree to prevent short-cycling and improve comfort.
• Simplified Installation: Features a small footprint and includes wire labels and mounting hardware for efficient field replacement.
• Flexible Configuration: Selectable Fahrenheit or Celsius display with a wide setpoint range of 45°F to 99°F (7°C to 37°C).
• System Protection: Includes standard single-stage HVAC control logic with fan modes (Auto/On) and system switches (Heat/Off/Cool).

Common Questions & Technical Support:

Does the 1F78-144 require a C-wire?
No, this model is powered by two AAA batteries, making it an ideal solution for older buildings where a 24V common wire is not present at the wall plate.

Can this be used with multi-stage heat pumps?
This thermostat is designed specifically for 1-heat/1-cool systems. It is not compatible with multi-stage equipment or heat pumps that utilize auxiliary or emergency heat strips.

Is this unit compatible with RV furnaces?
Yes, the battery-powered 1F78-144 is frequently used in recreational vehicles because it operates independently of the vehicle's electrical system for control power.

California Residents:
This product contains materials known to the State of California to cause cancer or reproductive harm.
Proposition 65 Warning

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.