Roth BW-HE, BW/H-HE and BW/H Comfort HE efficiency control units – optimal control of high-efficiency pumps
Roth BW-HE solar control unit
The Roth BW-HE solar regulation unit is used to efficiently produce domestic water. With a control facility for high-efficiency pumps, this regulation unit can efficiently fill the solar domestic water tank. Besides all the usual basic control functions of a standard regulation unit, the BW-HE has additional special features such as speed control, heat flow volume measurement and graphic measurement function. The large full graphics display with intuitive symbols makes it easier to understand the current system status. Up to three PT 1000 temperature sensors can be connected to the regulation unit (comes with two PT 1000).
Roth BW/H-HE solar control unit
The Roth BW/H-HE regulation unit is a microprocessor-controlled temperature difference regulator which can be used for domestic water heating and auxiliary heating. Besides all the usual basic control functions of a standard regulation unit, the BW/H-HE regulation unit has four relay outputs and two PWM outputs for controlling the speed of energy-saving highefficiency pumps. In addition, the regulation unit is equipped with five PT 1000 sensor inputs, two analogue sensor inputs, one pulse input and an additional L-output for actuators. The regulation unit comes with three PT 1000 sensors. The integrated SD card slot supports easy data recording using an SD card and the transfer of logged system data to a PC. The extra-large display makes it easy to visualise the system statuses. Predefined functions simplify the system parameterisation, whilst added functions extend the application options.
Roth BW/H Comfort HE solar control unit
The Roth BW/H Comfort HE solar regulation unit is a system-based regulation unit for the complex and combined task of domestic water heating and auxiliary heating. It covers a wealth of solar heating applications. Commissioning is easy and makes it possible to select default system settings and connect individual function blocks. The regulation unit has five relay outputs, up to nine sensor inputs, two connections for digital Grundfos direct sensors, and two PWM outputs for controlling the speed of energy-saving high-efficiency pumps. The integrated SD card slot supports recording of system data and copying of firmware updates. As well as numerous accessory devices, the VBus can also be used to connect up to two Roth expansion modules, each of which adds another six sensor inputs and five relay outputs to the regulation unit.
Roth EM expansion module for the BW/H Comfort HE control unit
The Roth EM expansion module offers five additional relay outputs and six additional sensor inputs. Up to two expansion modules can be connected to improve the regulation functions offered by the Roth BW/H Comfort HE solar regulation unit.
- More efficient operation of overall system
- Energy-saving switching power supply
- Clearly laid out display
- Subsidies possible
- Intuitive symbols