Programmable Thermostat

This replacement thermostat is engineered for commercial HVAC applications, specifically designed as a compatible substitute for the Honeywell TB6575C1000/U SuitePRO series digital fan coil thermostat. It delivers reliable temperature control and fan speed management for 2-pipe or 4-pipe fan coil unit systems commonly found in hotels, office buildings, and multi-zone commercial facilities. The thermostat features intuitive push-button operation with a backlit LCD digital display that clearly presents ambient temperature, setpoint adjustments, and operational status indicators including cooling/heating relay status, energy savings mode, and fan activity. The display supports both Celsius and Fahrenheit selection, accommodating diverse facility preferences and regional standards. This unit provides flexible heating and cooling control with single-stage heat and single-stage cool capability, supporting seasonal changeover, manual mode selection, or fully automatic heat/cool transition based on space temperature. The system includes adjustable deadband control for automatic changeover, along with maximum heating and minimum cooling setpoint limits to maintain comfort parameters and prevent energy waste. The three-speed fan control (low, medium, high) allows operators to balance comfort and noise levels in occupied spaces. Temperature control range spans 50 Degrees F to 90 Degrees F (10 Degrees C to 30 Degrees C) with adjustable setpoints. The thermostat accommodates remote sensor compatibility for enhanced temperature sensing in specific zones or problem areas. Its robust design and straightforward interface make it suitable for facility managers, HVAC technicians, and building automation professionals seeking a dependable replacement component for existing fan coil installations.