Air to water heat pump
KWT series
Viessmann Werke GmbH & Co. KG
However, even when cooling is required, air
can easily absorb the extracted heat. KWT
air/water heat pumps make particularly efficient
use of air temperatures down to about
5 °C, with which they can cover up to 50 % of
the annual heat demand.
Construction
KWT air/water heat pumps are based on
a split design, comprising a dry cooler and
a brine/water heat pump. The connection is
made simply using hydraulic lines that carry
brine. Air/water heat pumps in this output
range are operated on a dual mode basis,
i.e. above a defined outside temperature, a
second heat source provides backup or takes
over (e.g. Vitocrossal 300) for more efficient
heat generation. This is regulated via the
integral control unit.
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