Honeywell fan coil controller 2/4 tubes on/off TF428-RS
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Honeywell 2/4 pipe on/off fan coil controller TF428-RS
The TF428-RS fan coil controller is an extra-flat controller with a large LCD display. This TF428-RS series digital thermostat has been designed for 3-speed fan and valve control in a fan coil system, including:
• 2-pipe cold only/heat only/manual switching
• 4-pipe manual/automatic hot/cold switching
• Ventilation mode
• Manual or automatic 3-speed fan control
• Valve control
In addition to basic controls, the TF428 series with CPH (Cycles Per Hour) better maintains the ambient temperature at the set value and the Random start function helps maintain grid stability. Additionally, Honeywell Home's Memorized Off Time feature can automatically turn off the thermostat to save energy.
Characteristics:
- Memorized shutdown time.
- Cycles Per Hour (CPH).
- Random startup.
- Optional remote temperature sensor.
- Optional power saving mode.
- LCD display with simple user interface.
- Selectable display of ambient temperature or set value.
- Manual or automatic selection of fan speed.
- Unit of measurement of temperature in °C or °F.
- User settings can be stored if the power fails.
- Freeze protection available.
- Four keyboard lock options.
- Limitation of heating and cooling setpoint
