Buderus has released a single line of automation NSC, which allows you to control the temperature in different circuits: radiant heating, underfloor heating, water heating in the pool and hot water system. The new standard has unified more than 20 control protocols, which were previously served by many different devices. Now for full automation, several modules and controllers connected via common EMS bus and compatible with GB 402, GB 312, U052, GB 072, GB 162 boilers.
Practical control is as follows. On the RC100, RC200 or RC300 control panels, the user sets the temperature, temperature change program, or other service functions. The signal is then sent to actuator modules MM100, SM100 or SM200, which directly open or close the valves in the hydraulic circuit of the boiler, start circulation pumps and take readings from temperature sensors, thus implementing the feedback of controllers.
RC 100, RC 200, RC 300 control modules.
RC100 is the simplest controller capable of controlling only one heating circuit by changing the temperature of the heating medium supply line. In fact, it works as a remote control for the boiler. The homeowner won’t have to run to the boiler room to turn it warmer or cooler if they install a small panel with a display in a convenient location.
RC 200 controller has an advanced user interface and is not only easy for the end user, but also offers enough functionality for installers, service engineers and experienced homeowners. The RC 200 has several important features: the weather control, the regulation of the hot water from the solar collectors, time programs. In addition to the temperature, the RC 200 display can show basic information about the system, error codes, history of faults and even the date of the last service.
Weather-sensitive control is good for taking into account a sudden drop or rise in temperature behind the house walls during frosts and thaws, respectively, and not rely only on sensors installed inside the house. Thus the most comfortable room temperature is achieved and considerable savings are made, since the inertia of the system is reduced, and the boiler does not have to work unnecessarily, burning gas or diesel fuel.
Time-based programs also help save energy resources. For example, you can set a lower temperature at bedtime and a higher one during the day. Going on vacation in winter, you do not need to maintain a high room temperature and warm water for showers, just turn on anti-freeze mode and program the house heating to return.
The RC 300 is a device capable of controlling the entire system, consisting in its maximum configuration of two hot water preparation circuits, four heating circuits, a gas or diesel boiler and a solar collector. Thus, in warm weather and the off-season, especially in the southern regions, the maximum energy savings are achieved because the solar energy is enough to heat hot water and coolant. With the onset of frost, the boiler is connected to the process of heating the house.
The RC 300 offers a wide range of time-based control functions: weekly, daytime and night-time operation of the heating circuits a free program for hot water treatment and a new vacation function that allows you to preset five time periods.
Modules MM100, SM100, SM200
MM100 is a universal module that controls the hydraulic system of a single heating circuit, solar collectors or hot water preparation. Its task is to open or close the mixer, turn on the circulation pump for DHW, to receive information from the sensors of temperature of the hydrostring and supply line. The device is adapted for pumps with frequency converter. MM100 is installed on the wall or fixed to the heater.
SM100 and SM200 – serve in the system with solar collectors. Options SM100 limited to hot water preparation with one or more boilers connected in one cascade. In contrast SM200 has all the functions of the control of a solar collector: controls the circuits of DHW, heating and swimming pool, takes into account the heat energy. One module can effectively interact with two fields of solar collectors and two or three tanks of heat exchangers, which increases the efficiency of the system as a whole.