Heizen mit Naturwaerme 02-2011_GB.indd - Viessmann

Heat pumps
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Vitocal 350-A
Ideal for modernisation
The Vitocal 350-A air source heat pump
makes modernising easy. The additional
vapour injection in the compressor process
(EVI cycle) enables flow temperatures of up
to 65 °C. This therefore makes them an ideal
choice for older heating systems equipped
with radiators. The heat pump draws its
energy from the ambient air so there is non of
the inconvenience of drilling boreholes as for
geothermal probes.
High DHW convenience
Subject to system version, a higher flow
temperature enables a water temperature
of up to 55 °C inside the DHW cylinder.
This allows the Vitocal 350-A to deliver
a particularly high DHW convenience.
The Vitocal 350-A achieves its high flow
temperature of 65°C even at outside
temperatures as low as –10 °C.
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RCD guarantees efficient operation
RCD stands for Refrigerant Cycle Diagnostic
system. In the Vitocal 350-A, it is responsible
for permanently monitoring the refrigerant
circuit. This, in conjunction with the electronic
expansion valve (EEV) ensures the highest
efficiency at every operating point. Alongside
this, important operating parameters are
saved and called up, when required, for
diagnosis, optimisation, energy statements
and to calculate the seasonal efficiency (SPF).
Just perfect
If the heat pump is installed outside, the heat
needs to be "transported" to the interior of the
house. For this, you can rely on the heating
competence of Viessmann. For routing
underground, you can rely on Viessmann's
specially matched, thermally insulated
pipe systems, as well as a complete range
of accessories.
Vitocal 350-A
1 Intake side
2 Discharge side
3 Evaporator
4 Radial fan
5 Electronic expansion valve
6 Evaporator for intermediate injection
7 Hermetically sealed scroll compressor
with vapour injection (EVI)