White-Rodgers 1F87-361 Thermostat

The White-Rodgers 1F87-361 is a highly versatile single-stage thermostat designed for professional-grade HVAC performance. Engineered for reliability in 24V and millivolt applications, this Classic 80 Series model provides contractors with a flexible solution for gas, oil, electric, and hydronic systems. This unit serves as a direct upgrade to federal models, specifically as a 1F87-251 replacement, offering enhanced logic for 7-day programmable scheduling with four distinct periods per day. As a dual power thermostat, it can operate via hardwired 24VAC through the C-terminal or rely on battery power for installations where a common wire is unavailable. The logical terminal block (RC, C, RH, W, Y, G, O, B) ensures wide HVAC system compatibility, including single-stage heat pumps without auxiliary heat. Solid-state microcomputer technology maintains tight temperature regulation between 45°F and 90°F, while the backlit display and permanent program retention preserve user settings during power interruptions.

• Universal Compatibility: Works with gas, oil, electric, and millivolt systems, making it a reliable low voltage thermostat for diverse job sites.
• Flexible Programming: Dedicated 7-day schedule allows individual daily configurations to maximize system efficiency.
• Dual Power Logic: Supports both 24V or millivolt systems with a battery-powered fallback to ensure continuous operation.
• Simplified Service: Replaces legacy White-Rodgers 1F87-251 units with an identical horizontal footprint for quick retrofitting.
• Contractor Features: Includes an adjustable cycle rate (Fast/Slow) and a filter change indicator for improved system maintenance.

Is the White-Rodgers 1F87-361 compatible with heat pumps?
Yes, it supports single-stage heat pump systems provided there is no auxiliary or emergency heat requirement. Use the O/B terminals for the reversing valve.

Will I lose my settings if the power goes out?
No. The unit features permanent program retention, ensuring your programmable thermostat settings remain intact during a power loss.

Can this thermostat be used on 2-wire heating systems?
Yes, it is fully compatible with 2-wire heating-only systems and 750mV millivolt applications, such as wall heaters or floor furnaces.

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.