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ECO Products Delivered

Steca TR 0301
Steca TR 0301


The regulator is equipped with a total of three inputs for recording the temperature and one output for triggering the solar circuit pump. It's delivered with a collector temperature sensor (type Pt1000) and a storage tank temperature sensor (type Pt1000)

For more information please visit the web pages we've created for our newly expanded product range.



DeltaSol® ES
DeltaSol® ES


Lots of sensor inputs and relay outputs (10/6) to bridge the gap between the versions DeltaSol® BS and DeltaSol® M. Sophisticated eye catching design with proven user-friendly operation. The controller is preprogrammed for 30 solar and heating systems and can be customised to individual installations and personal requirements by means of switchable functions and options. An integrated heat quantity measurement, operating hours counter and the newly developed systemmonitoring display allow a clear visualisation of the system. For data communication and remote service, the controller is equipped with RESOL VBus and serial interface RS232 which opens the bidirectional way to modules, PCs or for data logging.

For more information please visit the web pages we've created for our newly expanded product range.



DeltaSol® BS Pro
DeltaSol® BS Pro


The system controller RESOL DeltaSol® BS Pro is preprogrammed for different hydraulic basic systems and is equipped with pump speed control and heat quantity balancing. The multi-functional and illuminated combined display enables a systemmonitoring for intuitive and safe controller configuration and comprehensive visualisation of the system status. Simple pictograms provide information about function and operating status of the controller and the system. This version is equipped with 4 inputs for PT1000 temperature sensors, store temperature limitation and manual mode (by menu). The central element is the 3-key-field below the display.

For more information please visit the web pages we've created for our newly expanded product range.



Steca TR 0603
Steca TR 0603


This controller provides everything your solar system requires for safe and durable operation. It has 6 inputs for recording temperature or pulse, as well as 3 partly speed-controlled outputs for triggering the pumps or switch valves.


For more information please visit the web pages we've created for our newly expanded product range.
Click here for datasheet



Steca TR 0704
Steca TR 0704


A universal controller for solar and heating systems. A part from the huge selection of preprogrammed systems it's possible to implement individual and freely-programmable configurations. As standard it's fitted with three heat quantity measuring units (calorimeters) as well as an operating hours counter for each of the 4 outputs.

Please call for pricing

For more information please visit the web pages we've created for our newly expanded product range.
Click here for datasheet

Expansion module for the TR 0704
Expansion module for the TR 0704


The TA 0403 expansion module has freely programmable functions and extra inputs/outputs it was specially developed to extend the range of applications of our TR 0704 system controller. It has 4 sensor inputs and 3 outputs, some of which can be speed controlled


Please call for pricing

For more information please visit the web pages we've created for our newly expanded product range.