Programmable Thermostat

This replacement thermostat is engineered as a direct substitute for the Resideo TH1110DH1003/U, commonly known as the Honeywell PRO 1000, and compatible with similar HVAC control applications. It is a non-programmable digital thermostat designed specifically for single-stage heating and cooling systems in conventional or heat pump configurations without auxiliary heat, making it ideal for straightforward residential and light commercial installations where manual temperature management is preferred. The unit features a backlit LCD display measuring 1.32 square inches, providing clear visibility across varying lighting conditions. The display illuminates conveniently via the up and down control buttons and indicates operational status with "Heat On" or "Cool On" indicators during active cycles. Temperature control operates with precision of plus or minus one degree Fahrenheit, with heating capability ranging from 40 Degrees F to 90 Degrees F and cooling capability from 50 Degrees F to 99 Degrees F, accommodating diverse climate control needs. This thermostat offers flexible dual power options, accepting either 20 to 30 VAC (nominal 24 VAC) or 750 mV power sources, eliminating compatibility concerns across different installation scenarios. The manual changeover between heating and cooling modes provides operators with straightforward system control without complex programming interfaces. Ideal for retrofit applications, equipment replacement, or new installations in facilities requiring reliable single-stage heating and cooling management, this thermostat delivers dependable performance in HVAC systems across commercial buildings, offices, retail spaces, and similar applications. Its non-programmable design ensures ease of use while maintaining effective temperature regulation throughout occupied spaces.