Baxi Senertec Dachs Pro 20 ST, Руководство по сборке и эксплуатации

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14/4798.495.002 28 | Product description
Dachs Pro 20 ST
4.2 Operating principle
During operation of the Dachs Pro 20 ST, up to 19.2 kW of electrical and 36.1 kW of thermal energy are provided.
The Dachs Pro 20 ST is a typical application in the field of cogeneration of heat and power . A four-cylinder 4-stroke engine
drives a water-cooled asynchronous generator . The generated mechanical energy is directly converted into electricity.
Simultaneously, the heat generated by the drive is not eliminated as in conventional power plants, but utilised by transfer
into a heating system.
Thanks to this cogeneration of heat and power, the fuel (natural gas) can be utilised much more efficiently than in standard
generation solutions in separate units. As the conversion of primary energy takes place in a circular process , only 25 – 30 %
of the deployed energy is transferred into mechanical movement. The remaining 70 – 75 % is converted into heat which is
then transferred into a heating or domestic hot water process via respective heat exchanger systems. The overall efficiency
increases respectively to approx. 90 % , efficient utilisation of primary energy is maximised and a primary energy saving of
approx. 30 % in contrast to separated generation of power and heat can be achieved.
The system is controlled by the internal controllers of the CHP unit in combination with the
MSR Pro 20 ST controller unit
.
Both controllers have been specially developed for the requirements of the Dachs Pro 20 ST and fulfil the following tasks:
●
Start and operation of the Dachs Pro 20 ST.
●
Feed of electrical energy into the public grid and building systems.
●
Feed of thermal energy into the heating system.
●
Monitoring of the operational parameters of the Dachs Pro 20 ST.
●
Monitoring of the electrical energy feed into the grid.
●
Monitoring of the electrical safety during operation in case of grid or phase defects (safety chain).
●
Control of fuel supply.
Reference:
Further information can be obtained from:
Dachs Pro 20 ST planning manual, art. no. 4798.492.xxx.
Note:
The MSR Pro 20 ST controls the overall system, adjusts the buffer discharge pump for optimum buffer loading
and discharge and provides additional control functions. However, it does
not
monitor safety-relevant functions
regarding gas safety and automatic circuit breaker operation (ENS). These functions are performed by the internal
controller of the CHP unit.
Heating circuit and hot water functions as well as control of a peak buffer are not supported by the MSR Pro 20 ST
controller. These functions must be implemented via the existing heating control unit or an external controller.
During the system test phase, the multi-module function of the MSR Pro 20 ST is not supported.
The MSR Pro 20 ST controller offers different user levels. In open accessible operator mode, operating data can be
displayed and settings changed. The password-protected user levels enable adjustment of the control behaviour
of the unit to special individual requirements and situations.
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