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Operating the fuel cell module
The fuel cell module is switched on to produce electric-
ity according to the heat-up condition of the connected
DHW cylinder and the energy manager defaults. The
heating energy generated during operation is directed
to the relevant cylinder.
If the energy manager is enabled, the fuel cell module
starts to best meet the power demand. Start times will
depend, among other things, on the consumption pat-
tern in the household mains.
If the energy manager is disabled, the fuel cell module
starts solely on the basis of heat demand.
After operation, the regeneration phase of the fuel cell
module starts.
The fuel cell module process allows an operating
period of 45.5 h per start.
If the maximum return temperature on the fuel cell
module has been reached, the module shuts down.
Electrical output of the fuel cell
Electrical output is influenced by the gas quality and
the geodetic head. Electrical output is also reduced by
a decrease in the fuel cell's electrical efficiency over
time.
Vitovalor PA2 is operated with constant heat input (gas
input) and constant overall efficiency. This means that
the ratio of electrical output to thermal output changes
over the service life. As the overall output remains con-
stant, electrical output decreases over the service life
while thermal output increases.
Function description
Control unit
5839343
Functions
Summary of Contents for E00T
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