RT4B

MICROPROCESSOR TEMPERATURE CONTROLLER RT-04 "ADAŚ" Version B is a controller adapted to operate central heating solid fuel boilers to stabilize the operation of the boiler by measuring the water temperature. This controller is a hybrid model of those offered so far, that is,  RT-04 ADAŚ and RT-01 ANIA version B, because the existing technical solutions have not been altered, while the housing itself has been changed to the same which is used in the controllers RT-01 and RT-02 versions B. This change was dictated by the demands of clients for whom the existing control panel was a bit cumbersome because of its size. Functionally, this controller performs the same tasks as in the previous model. The only interference in the operating range of the device is retrofitting it in the algorithm for securing the circulating pump working in the system from jamming outside the heating season. It prevents the build-up of harmful ingredients blocking the pump impeller by periodically switching it on at a time when the CH heating system is not used. The condition is here, of course, that the controller remain in the standby state after the end of the season. The design of the controller allows it to be used for older models of boilers, however, it is conditioned by technical requirements of the blower because some types of blowers, due to poor motor  modulation, don‘t tolerate a long operation at the minimum load which for this controller model is as high as 10% of the maximum speed. In case of power failure and its restoration the settings previously entered by the user are stored in the memory of the controller, which directly allows for a smooth restoration of the boiler operation according to the previous settings. The controller is equipped with an audible alarm and light signalling that inform about malfunctioning of the boiler or damage to the temperature sensor, which activates the alarm procedure of disconnecting the blower and turning on the continuous operation of the circulating pump. Another innovation introduced in the model RT-04 ADAŚ version B is an additional protection against boiler overheating (low-voltage sensor STB).