The T6375 are designed to control the valves, or the valves and the fan in 4-pipe fan-coil applications, with the possibility of also being used for control of split units and small air conditioners.

The thermostat operates the on/off valves to provide control at the desired setpoint temperature.

The fan can also be controlled from the thermostat. It is wired to run continuously, and can be switched off with the system ON/OFF switch. Versions are available with a manual 3-SPEED FAN switch, and with a system ON/OFF switch.

Heat/cool changeover operation is also possible on some versions. This function can be accomplished by a manually operated HEAT/ COOL switch on the front of the thermostat, or in some versions, automatically by means of a fixed deadband built into the thermostat between the heating and cooling setpoints.

• Model: T6375B1108 (Cool Only)
• Model: T6375B1153 (Heat & Cool)