Buderus offers sophisticated boiler-control system
The latest modular control system from Buderus is the RC35, which offers comprehensive functionality for all major areas of commercial heating systems when used with a wall-hung GB162 or floor-standing GB132 boiler.
They have a back-lit menu with full-text display, rather than diagnostic codes. There is also a set-up sequence for quick and simple installation.
At its most basic, the RC35 can control a single unmixed heating circuit with DHW control. This functionality can be considerably extended with several other Buderus modules, which are wired into the colour-coded connections on the GB162 or GB312 boiler.
The WM10 low-loss header module, for example, can control one unmixed heating circuit and regulate temperature in the low-loss header to maximise system efficiency.
The MM10 module enables three more circuits to be controlled. The SM10 solar-circuit module fully controls a solar thermal system for preheating domestic hot water and ensures that the boiler fires only when solar-heated water is not available.
The RC35 also has several weather-compensation functions that can be individually programmed for each heating circuit.
Other features include a disinfection program to prevent legionella and a screed-drying programme for underfloor heating systems. To increase system reliability, pumps and mixing valves can be cycled at predefined intervals.