Honeywell T6861 Series
T6861 digital thermostats are designed for application of 3-speed fan and valves in fan coil system.
Including:
2-pipe cool only/heat only/manual changeover and
4-pipe manual or automatic changeover Ventilation mode Manual or automatic 3-speed fan control
Water valve control
Fan speed can be selected to automatic or manual 3-speed control mode.
In ventilation mode, fan only support manual speed control.
Delta Products