General
The TF228WN digital thermostat is designed for 3-speed fan and valve control in a fan coil system, including:
- 2-pipe cool only/heat only/manual changeover
- Ventilation mode
- Manual or automatic 3-speed fan control
- Water valve control Besides the basic controls, TF228WN featuring CPH (Cycle Per Hour) better maintains the room temperature to the setpoint and memorized time off function can automatically turn off the thermostat to save energy.
In addition, Honeywell Random start-up function would help to maintain power grid stability.
Features
Memorized time off
Cycle Per Hour (CPH)
Random startup
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
Flush mount on standard 86 wall mounting box
Specifications
- Make: Honeywell
- Model: TF228WN
- Power supply: 220(+10%,-15%)VAC, 50Hz
- Control : PI, On/off output
- Accuracy: ±1°C at 21°C
- Rating capacity: 3A for fan load, 2A for zone valve
- Protection class: IP20
- Set point range: 10 ~ 32°C
- Display range :0 ~ 37°C
