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Temperature Difference Controller TDC-4

TDC 4

Being the manufacturer of solar and heating controllers, we have immensely enhanced our range of controllers. Besides the practicality and design, the new TDC series of devices distinguish themselves mainly by the crystal clear operator guidance. According to the application and the required function, different types of controllers are available in different price categories:

2-6 Pt1000 temperature probes
1-3 relay outputs
Pump output with speed control with electronic for smooth engine running
Heat quantity count
Options for enhancement

A clearly written illuminated display with comprehensive full text and graphic mode is used without any confusing abbreviations. The display can be read in an efficient way - thanks to its inclination. The self-explanatory operation with 4 input keys as soft keys allows the clear assignment of different functions. The instructions are entered with the keys as text or symbols. The housing offers different options of assembly such as wall assembly, integration to a pump group or mounting to a switch panel. Types up to protection class IP 54 are available. The electrical equipment is located in the upper part of the housing, it is plugged on to the clamp-connection and can be easily separated. The terminal clamps of the reliable cage clamp technique are firmly integrated into the lower part of the housing. All cables can be provided with strain relieve in the wide clamp room. According to the type of device, different options for enhancement are provided:

USB or RS485 interface
0...10V or 4...20mA interface
Ethernet interface for network and Internet connection
MMC data memory card
Probes of radio engineering
Additional relay for alarm notification

The devices are available in custom-made type and in different languages. Further types of devices such as controllers for heating circuit, heat pumps and boilers can be delivered upon request.

TDC 4 - Temperature Difference Controller VFS1-12 Art. no. 3731

High-contrast lighted display with extensive full-text and graphic mode / Self-explanatory operation via 4 softkey entry keys / Support for initial parameter setting with integrated setup assistants / Various collector, storage and frost protection programs / Special start logic for vacuum tube collectors and self-dumping systems / Data storage unit with comprehensive statistics and graphic analysis for long-term monitoring of the system / Function control by simple heat metering / Error memory and analysis with date and time / Menu blocker against unintentional setting changes can be activated in important menus / Customer-specific device designs and expansion options, such as RS485, Ethernet, 4...20mA, relay for alarm messages on request / Attractive housing (H 163mm W 110mm D 51mm) with various installation possibilities.
Also available with Ethernet connector and PC software.

Incl. combined flow/temperature VFS-sensor for volume flow (1-12l/min) and return temperature (0-100°C).
Design like TDC 3, but with capture for volume flow, forward and return temperature for heat volume measurement in the 15 systems.
- 4 sensor inputs for Pt1000 temperature sensors
- 2 sensor inputs for multi-sensor (flow rate and return temperature)
- 1 switch output for speed control of standard pumps with special electronics to ensure quiet running of the motor
- 1 relay output 230VAC for pumps/valves
- VFS1-12 sensor included

(Required accessory: 3-4 PT1000 temperature sensors e.g. TT/S2 + TH...)

TDC 4 - Temperature Difference Controller VFS2-40 Art. no. 3198
see above, but with flow/temperature sensor VFS2-40 for volume flow (2-40l/min) and return temperature (0-100°C)

TDC 4 - Temperature Difference Controller VFS5-100 Art. no. 3643
see above, but with flow/temperature sensor VFS5-100 for volume flow (5-100l/min) and return temperature (0-100°C)

Download installation and operation instructions (PDF)

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