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TDC Temperature Difference Controller

From small to complex: The TDC controllers make every solar system intuitively operable.

Clearly written illuminated full text display.
Convenient menu with text and graphic mode without confusing abbreviations.
Internationally understandable with up to 18 languages included.
Self-explanatory operation: The assigned functions are shown in the display right above the respective input key.
Easy and quick installation with the integrated setup wizard.
Several pre-defined and extendible hydraulic variants for reliable configuration of individual systems.
Different options of assembly such as wall assembly, integration to a pump group or mounting to a switch panel.

Depending on the type of device, different options for enhancement are provided:

  • Ethernet or CAN Bus interface for remote control and data logging
  • 0...10V and PWM output for speed-control of high-efficiency pumps
  • Freely assignable relays for flexible function extension
  • UL/CSA-approved 115V version for North America available

Manuals, labels, software and hardware can be adjusted for OEM customers.

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tdc Regler sTDC TDC XTDC
STDC MTDC LTDC XTDC
Temperature sensor inputs Pt1000 3 3 5-6 8
Relay outputs 230V 1 2 3 7
of which for speed control of standard pumps 0-1 0-1 0-2 2
Outputs 0..10V or PWM signal 0-1 0-1 1-2 2
Number of applications 9 25+ 36+ 48+
Simple heat metering Yes Yes Yes Yes
Flow based heat metering (VFS sensor) No No 0-2 2
Pressure monitoring (RPS sensor) No No 0-2 2
Time and temperature-controlled thermostat function Yes Yes Yes Yes
Battery-backed Real Time Clock Yes Yes Yes Yes
Setup wizard Yes Yes Yes Yes
Data storage with statistics and graphic analysis Yes Yes Yes Yes
Error memory and analysis with date and time Yes Yes Yes Yes
Ethernet connection (optional) No No

Yes
(via Data Logger)

Yes
Hydraulic variants sTDC MTDC (1-9) LTDC (1-9) XTDC (1-9)