Danfoss thermal actuator TWA-Q is used with Danfoss Pressure Independent Control Valves (PICV) type AB-QM DN10-32. The actuator can be controlled with an on/off controller, pulse width modulation (PWM), or switch. These provide a cost effective solution for the control of hot and /or chilled water for fan coil units, small reheaters and recoolers in temperature control systems.