Honeywell TF428WN Thermostat


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Honeywell TF428WN  is a digital thermostat with CPH (cycle per hour) better holds the room temperature to the setpoint, and the Random Start-up feature will help preserve the reliability of the power grid.

Applications of Honeywell Thermostat: School, Hospital, Shopping Mall, Industrial, Pharmaceutical

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Honeywell TF428WN digital thermostat is developed for 3-speed ventilator and valve control in a ventilator coil system like – 2-pipe cool only / heat only / manual changeover – 4-pipe cool / heat manual / automatic changeover – Ventilation mode – Manual or automatic 3-speed ventilator control – Air valve control In addition to simple controls,TF428 series of CPH (Cycle Per Hour) better maintain the room temperature at the setpoint and Random Start-up Function can help maintain the reliability of the power grid. Additionally, the Honeywell Memorized Time Off Feature will switch off the thermostat automatically to save electricity.

Features of  Honeywell TF428WN Thermostat 

  • Memorized time off
  • Cycle Per Hour (CPH)
  • Random startup
  • Remote temperature sensor optional
  • Energy-saving mode optional
  • LCD display with simple user interface
  • Room temperature or setpoint temperature display selectable
  • Manual or automatic fan speed selectable
  • Temperature units in either °C or °F
  • User setting can be stored with power loss
  • Freeze protection available
  • Four keypad lock options
  • Heating and cooling setpoint limitation

Additional information

Weight 1 kg


Model No.


Measuring Parameters



0 to 37°C


±1°C at 21°C

Operating Temperature

0 to +49°C

Storage Temperature

-30 to +60°C

Operating Humidity

5 to 90% RH, non-condensing

Maximum Temperature for Relay wiring


Wire Sectional area

1.0 to 1.5mm2

Set point range

10 to 32°C


86 X 89 X 16.5mm (L*W*H)

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Honeywell TF428WN Thermostat


(GST 18% Exclusive)

Add to cart