The TC-400 Remote Control Box is for use with HX Series chillers equipped with a TC-400 Controller. From the convenience of your control room or any other location, the remote controller replicates all the functions of the base unit's controller from up to 200 feet away. Features include a seamless, moisture resistant keypad, process flow readout, 4 fluid safeties, status LEDs, audible alarm, and a bracket for optional wall mounting. Requires a 230 volt, 50 Hz power source.