The TF243xx-S series digital thermostat is designed for 3-speed fan and modulating valve control in a fan coil system, including:
• 2-pipe cooling only/heating only/manual changeover
• Ventilation mode
• Manual or automatic 3-speed fan control
• Modulating water valve control
• Besides the basic controls, TF243xx-S series provide Random Start-up Function to maintain power grid stability.
• Memorized time off
• Random startup
• Remote temperature sensor optional
• Energy saving mode optional
• LCD display with simple user interface
• Room temperature or setpoint temperature display select-able
• Manual or automatic fan speed selectable
• Temperature units in either °C or °F
• User setting can be stored when power loss
• Freeze protection function available
• Keypad lock options
• Heating and cooling setpoint limitation