Programmable Thermostat

This line-voltage programmable thermostat serves as a direct replacement for the Resideo TL8230A1003/U and compatible models in the Honeywell Home LineVoltPRO 8000 series. Engineered specifically for 1-heat/0-cool electric heating applications, it provides reliable temperature management for baseboards, convectors, fan-forced heaters, and similar resistance heating systems operating at 208/240 VAC. The unit features double-pole, single-throw (DPST) switching with a positive OFF position, ensuring safety and control flexibility for maximum loads of 15A (3600W at 240V or 3120W at 208V). The 7-day programmable scheduling capability enables customized heating patterns throughout the week, with pre-configured energy-saving schedules designed to reduce operational costs by up to 20%. Multiple operating modes including Away, Economy, and Holiday settings accommodate varying occupancy patterns and seasonal requirements. A temporary override function allows for manual adjustments without disrupting the master schedule, while the early start feature optimizes warm-up timing for occupied periods. Electronic temperature control delivers precision regulation within plus or minus 1 degree Fahrenheit, maintaining consistent comfort and efficiency. The thermostat defaults to a 70-degree Fahrenheit setpoint during power interruptions, providing automatic recovery without manual reconfiguration. A large, clear backlit display measuring 2.67 square inches ensures easy readability in various lighting conditions, while integrated heating indicators offer immediate operational status feedback. This unit is ideal for commercial buildings, industrial facilities, residential multi-unit properties, and any application requiring dependable, energy-efficient electric heating control.