Programmable Thermostat

The Honeywell TB8575A1000 is a non-programmable digital thermostat engineered for reliable control of 2- and 4-pipe fan coil units in commercial HVAC applications. This cost-effective solution delivers straightforward temperature management without complex programming requirements, making it ideal for facilities prioritizing simplicity and dependability. Operating on 24 VAC power (20-30 VAC at 50/60 Hz), this thermostat features a digital backlit display for clear visibility in various lighting conditions. The control interface includes a system switch with off, heat, cool, and auto settings, enabling manual or automatic heat/cool changeover to match seasonal requirements. Three-speed fan control (high, medium, low, auto, and off) allows operators to balance comfort and energy efficiency. This unit is equipped with an onboard 10K NTC temperature sensor with a working range of 0-120 Degrees F and display range of 32-99 Degrees F, ensuring accurate temperature monitoring and responsive control. The thermostat provides 1 heat and 1 cool output contact rated for 24 VAC 1.0A, 120 VAC 1.0A, and 240 VAC 1.0A applications. The 3-speed fan relay accommodates 24 VAC 1.0A, 120 VAC 6.0A, or 240 VAC 3.0A loads. Ideal for hotels, offices, hospitals, and multi-unit residential buildings, the TB8575A1000 replacement delivers proven performance and compatibility. Its straightforward design minimizes installation complexity while maintaining the functionality required for consistent occupant comfort and system efficiency.