Sorel MTDC V5 differential temperature controller, without sensor

• For medium-sized solar thermal systems or solid fuel boilers.
• For standard and high-efficiency circulation pumps with PWM signal.
• With 3 entrances and 2 exits.

Technical data:

• Pt1000 sensor inputs: 3
• Relay outputs 230 V: 2
• Of these, for speed control of standard pumps: 1
• Outputs 0-10V or PWM signal: 1
• VFS/RPS sensors: 0
• Number of applications: 25+
• Red/green LEDs to indicate operating states: 1
• Simple heat measurement: Yes
• Heat metering via Grundfos direct sensor (VFS): No
• Pressure monitoring via Grundfos direct sensor (RPS): No
• Ethernet connection with PC control software optional: No
• Data logging to SD card: No
• No sensors included.

Versatile, networked, and user-friendly. Thanks to the crystal-clear user interface, all types of solar systems can be operated intuitively – from small to complex.

• The full-text operation guides the user through commissioning, settings and evaluations with clearly understandable, context-dependent help texts and ensures easy navigation through the clearly structured menu – and this in up to 20 languages ​​integrated into the controllers, which can be freely selected in the menu.

Upon initial power-up, a commissioning wizard guides the user step-by-step through all necessary settings for quick and easy setup. The high-contrast, backlit display shows the system status with data and animated hydraulic diagrams. Statistics such as the system's heat output can be accessed at the touch of a button, either graphically or in text format.

• Each TDC model features various freely selectable system configurations, ranging from simple solar systems to complex systems with up to two collector arrays and four storage tanks, depending on the controller size. These basic systems can be easily and individually expanded by activating additional functions via free relays.

• Time and temperature-controlled thermostat function
• Battery-backed real-time clock (RTC)
• Legionella protection via solar
• Legionella protection through additional heating
• Cooling function
• Plant protection
• Collector protection
• Memory protection
• Frost protection programs
• Cooling
• Start logic for vacuum tube collectors
• Control program for self-draining systems (DrainBack)
• Data storage with statistics and graphic analysis
• Error log and evaluation with date and time
• Menu blocker