White-Rodgers 1F86-344 Thermostat

The White-Rodgers 1F86-344 is a professional-grade single stage thermostat from the Classic 80 Series, engineered for reliable 1H/1C HVAC system control. This non-programmable digital thermostat serves as a direct replacement for the 1F86-244, offering a horizontal profile and a clear, backlit display for high visibility in dark mechanical rooms or residential hallways. Operating on 24VAC or battery power, it provides flexibility for installations lacking a common wire. The terminal configuration includes RC, C, RH, W, Y, G, O, and B, ensuring compatibility with standard gas, oil, or electric systems, as well as heat pumps without auxiliary heat. With a setpoint range of 45°F to 90°F and a permanent memory backup, this 24v thermostat maintains calibration and user settings during power outages. This unit is a staple for contractors prioritizing simple interface navigation and long-term terminal board durability in the field.

• Dual Power Capability: Operates on 24 Volts or battery power, allowing for hardwired or battery-powered installation where a C-wire is unavailable.
• Broad Compatibility: Supports single stage heat/cool systems and heat pumps without 3-wire zone valves or auxiliary heat.
• Precision Control: Features an adjustable temperature swing (anticipation) to prevent short-cycling and maintain tight setpoint tolerances.
• High-Visibility Display: The large backlit digital display ensures accurate temperature monitoring and system status updates in low-light environments.
• Easy Retrofitting: Same footprint and mounting as previous 80 Series models, utilizing an electronic thermistor for superior accuracy over older mechanical anticipators.

Common Questions

Is the White-Rodgers 1F86-344 compatible with heat pump systems?
Yes, this unit is compatible with single-stage heat pump systems that do not require auxiliary or emergency heat. It includes O and B terminals for reversing valve switching.

Does this thermostat require a common wire (C-wire)?
No, the 1F86-344 can be powered solely by batteries, making it an ideal solution for older 4-wire thermostat retrofits where pulling a new cable is not feasible.

Can I use this for multi-stage heating or cooling?
No, this is a single stage 1H/1C controller. For multi-stage equipment, you will need to step up to the White-Rodgers 80 Series multi-stage or Blue Series models.

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.