Programmable Thermostat

This replacement thermostat is designed as a direct substitute for the Resideo TL8230A1003 and compatible models in the Honeywell Home LineVoltPRO 8000 series. It functions as a double-pole (DPST), 7-day programmable line-voltage thermostat engineered for electric heating applications including baseboard heaters, convectors, fan-forced heaters, furnaces, water heaters, and air conditioning systems. The unit operates on 208/240 VAC at 50/60 Hz and accommodates electrical loads up to 15 amps, delivering 3600W at 240V or 3120W at 208V. The thermostat features comprehensive 7-day programmable scheduling capabilities with a pre-configured energy-saving schedule designed to reduce energy consumption by up to 20 percent. Users can customize operation through multiple modes including Away Mode, Economy Mode, Holiday Mode, Temporary Override, and Early Start functionality to ensure temperatures reach desired setpoints by programmed times. Electronic temperature control delivers precision within plus or minus 1 degree Fahrenheit, utilizing an internal thermistor sensor for accurate temperature monitoring across a range of 40 to 86 degrees Fahrenheit (5 to 30 degrees Celsius). This thermostat is ideal for commercial and industrial facilities requiring reliable temperature management of electric resistance heating and cooling systems. Its programmable design and energy-saving features make it suitable for applications where operational efficiency and flexible scheduling are essential, such as office buildings, industrial spaces, and multi-zone heating systems. The unit provides straightforward installation as a line-voltage control device, eliminating the need for separate control transformers in many applications.