• Precise and automatic control of room temperature in two-pipe systems
• Continually monitors and adjusts room temperature for consistent comfort and relief from under heating and overheating
• Controls include sensor, setpoint dial and valve actuator; components may be integral or connected by capillary tubes
• A control with remote setpoint and sensor mounted with setpoint dial on outside of heating cabinet; sensor mounted beneath heating coils in cold air return
• Double capillary