Heizen mit Naturwaerme 02-2011_GB.indd - Viessmann

VITOCAL 350-A
Do you want to modernise your heating system with a heat pump, but are unable to
make use of heat from the ground or groundwater? No problem with the Vitocal 350-A
air source heat pump.
The Vitocal 350-A air source heat pump
with rated heating outputs 10.6 to 18.5 kW
is particularly suitable for modernisation
projects. Thanks to enhanced vapour injection
in the compression process (EVI cycle),
developed by Viessmann, flow temperatures
of up to 65 °C can be achieved – even at
winter outside temperatures. This air source
heat pump can therefore also be used in older
heating systems equipped with radiators.
The Vitotronic 200 heat pump control unit
of the Vitocal 350-A has an integral cascade
function. This means that, in buildings with
a high heat demand, up to four air source
heat pumps can be operated in a cascade.
Cumulative heating outputs of up to 74 kW
are therefore possible.
Air source heat pump with particularly
high efficiency
An electronic expansion valve and RCD
system also ensure an extremely high level of
efficiency for the Vitocal 350-A all year round.
For air source heat pumps, the Vitocal 350-A
offers a high coefficient of performance,
i.e. 3.5 (in accordance with EN 14511 at
air 2 °C/water 35 °C), resulting in high
seasonal performance factors and very low
running costs.
Space saving thanks to outside
installation
The Vitocal 350-A can be installed either
internally or externally. The three-stage radial
fan in the heat pump, as well as the flowoptimised
air routing and the sound insulated
casing together make the Vitocal 350-A
extremely quiet and during night operation
the variable-stage fan control unit reduces
the speeds and thus the noise emissions
even further.
Vitocal 350-G are
certified in accordance
with the EHPA heat
pump quality seal and
NF-PAC.
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