Check the listing for details. SOREL Solar Hot Water Heater Temperature Difference Controller MTDC V5 Worldwide. Condition: Brand New. Listed at 130.01 USD. Sorel MTDC Version 5 Worldwide SOREL Medium Temperature Difference Controller Made in Germany by Sorel Two circuit controller for systems with 1-2 storages. This Listing is for Sorel MTDC-V5.The Temperature Difference Controller MTDC facilitates efficient use and function control of your solar or heating system. The device is impressive most of all for its functionality and simple, almost self-explanatory operation. For each step in the input process the individual entry keys are assigned to appropriate functions and explained. The controller menu contains headwords for the measured values and settings, as well as help texts or clearly-structured graphics. The MTDC can be used as a temperature difference controller for the various system variants. Important characteristics of the MTDC: - Depiction of graphics and texts in a lighted display - Simple viewing of the current measurement values - Analysis and monitoring of the system by means of statistical graphics,etc. - Extensive setting menus with explanations - Menu block can be activated to prevent unintentional setting changes - Resetting to factory settings MTDCSensor inputs PT10004Relay outputs 230V /115V2Relay output voltage-free✕Outputs 0..10V or PWM signalfor speed control of high-efficiency pumps1Number of applications25+Extension of pre-defined systemsby selectable additional functions✓LEDs red/green for display of operating status✓Statistics and graphic analysis of data memory✓Flow based heat metering via Grundfos direct sensor (VFS / VVX)✕Pressure monitoring via Grundfos direct sensor (RPS)✕Battery-backed Real Time Clock > 24h✓Time and Temperature-controlled thermostat function✓Legionella function via solar✓Legionella protecion via additional heating✓Cooling function✓Setup wizard✓System protection✓Collector protection✓Storage protection (CP Tmax)✓Anti-freeze protection✓Recooling✓Start logic for vacuum tube collectors✓Control program for self-dumping systems (drain-back)✓Function control and error memory with date and time✓Menu blocker✓Power supply for universal voltage range (100…240VAC) and reduced standby consumption✓CAN bus connection for SOREL Connect✓Data logging on microSD cardvia data loggerEthernet connectionvia data loggerDimensions Height x Width x Depth in mm163 x 110 x 51Housing colourRAL 9003Protection ClassIP40Mounting Hardware, Spare Fuse and User Manual✓