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Room sealed operation
The combustion air is drawn from outside the building.
Safety valve
Safety equipment that must be installed in the cold
water pipe by your contractor. The safety valve opens
automatically to prevent excess pressure in the DHW
cylinder.
Cylinder loading pump
Circulation pump for heating the water inside the DHW
cylinder
Drinking water filter
A device that removes solids from the water. The
drinking water filter is installed in the cold water pipe
upstream of the DHW cylinder or the instantaneous
water heater.
Time program
In the time programs, you specify what your system
should do at what time.
DHW circulation pump
The DHW circulation pump transports the DHW
around a loop line between the DHW cylinder and the
draw-off points (e.g. hot tap). This ensures that hot
water is rapidly available at the draw-off points.
Energy tax rebate
In Germany, it is possible to reclaim the energy tax for
gas used to operate the fuel cell. This is done by sub-
mitting a request for an energy tax refund to the cus-
toms office. The previously paid energy tax will then be
refunded in part.
1. Press to switch to the energy cockpit.
2. Press the symbol for the fuel cell.
3. Press
to access the gas consumption history.
Select the data for the last year.
The gas consumption to be taken into account for
the energy tax refund is the sum of the individual
monthly values.
Information on disposal
Disposal of packaging
Your contractor will dispose of the packaging from your
Viessmann product.
Appendix
Terminology
(cont.)
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Summary of Contents for Vitovalor PA2
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