>> General
T6865 digital thermostats are designed for the application of 3-speed fan and modulating valves in fan coil system.
Including:
* 2-pipe cool only/heat only/manual changeover
Ventilation mode
Manual or automatic 3-speed fan control
modulating valve control
* Fan speed can be selected to automatic or manual 3-speed control mode.
* In ventilation mode, fan only support manual speed control.