market based on the TR 0301 basic controller. With its highly fireproof case and special certification (ETL label) from a Nationally Recognised Testing Laboratory (NRTL), the controller meets the safety standards and minimum requirements needed for Market. graphic display, which offers a complete visualisation of the solar system's operating mode and solar circuit. pictograms. The controller was jointly designed with an internationally renowned design centre. The controller is used for monitoring and controlling solar thermal systems which have a collector array and a storage tank. In addition, the controller also has important system monitoring and safety functions to ensure safe and durable operation of the entire system. The numerous additional functions of the TR 0301 also include the option of limiting the storage tank temperature, a tube collector function, an antifreeze function, a holiday and storage re-cool function as well as a choice of temperature indications in either degrees Celsius (°C) or Fahrenheit (F°). The operational safety of the system is supported by a sophisticated fault diagnosis. The multi-coloured LCD backlight ensures quick and safe location of occurring errors and facilitates quick troubleshooting. The TR 0301 U controller is supplied with a mains connection cable and a pre-installed, pluggable pump output. · LCD provides real time operating · Sophisticated monitoring and fault · Varistor high voltage spike protection · RTD type 1000 sensors · Evacuated tube & freeze recirculation functions · Vacation overheat protection · Accessible side-mounted on, off, auto switch · Three temperature sensor inputs, one 120 VAC output · Pump protection activated when collector reached 266 °F |