Solar Thermal Controller

Available from autumn 2010:
Steca TR A502 TT

The Steca TR A502 TT controller was specially developed as a compact, efficient and universal solar controller for all double-circuit systems.

The particularly compact designer housing can be superbly integrated in solar stations, but can also be universally installed on walls or mounting rails.

A specially designed switched-mode power supply ensures maximum efficiency and economic operation. This reduces the controller’s own electricity consumption to a minimum and at the same time provides a variable input voltage range for universal and worldwide deployment. The innovative electronic load control protects the controller against overloading and installation errors.

The Steca TR A502 TT has two outputs, which can also be optionally used as PWM outputs for controlling high-efficiency pumps. The equipment is rounded off with an additional alarm output along with five inputs for recording temperature and impulses.

The clear, graphically animated display visualises the solar power system and operating status. The consistent use of pictograms facilitates the controller operation.

The Steca TR A502 TT controller monitors and controls solar thermal systems with two differently oriented collector arrays and a maximum of two domestic hot water or buffer storage tanks.

11 pre-programmed systems enable universal usage.

The Steca TR A502 TT also provides important monitoring and safety functions such as special error messages to quickly troubleshoot faults. This ensures the permanent and secure operation of the entire solar thermal system.