Vaillant geoTHERM exclusive, Руководство по установке

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geoTHERM exclusive VWS 0020051614_00 installation instructions
These different temperatures are produced in the cool-
ant circuit by means of a compressor (
2 ) and an expan-
sion valve ( 4 ), which are situated between the evapora-
tor and the condenser. The coolant flows in vapour form
from the evaporator into the compressor, where it is
compressed. This causes the pressure and temperature
of the coolant vapour to rise sharply. After this process
it flows through the condenser, where it releases its
heat to the heating water by condensation. It flows as a
liquid to the expansion valve, where it expands signifi-
cantly and in so doing loses much of its pressure and
temperature. This temperature is now lower than that
of the brine which flows through the evaporator. The
coolant can thus take up more heat in the evaporator,
turning into vapour in the process and flowing to the
compressor. The cycle starts again.
If required, the electric auxiliary heating can be
switched in by means of the integrated controller.
To prevent the formation of condensate in the interior
of the unit, the pipes of the heat source circuit and the
coolant circuit are insulated. Should condensate appear,
however, it is collected in a pan inside the unit (see
Fig. 2.7) and fed away underneath it. Drop formation
under the unit is thus possible.
The Vaillant geoTHERM exclusive heat pumps are
equipped with an auxiliary cooling function in order to
provide for comfortable, cool room temperatures in the
living room at high outside temperatures during the
summer operation. For this purpose, additional compo-
nents are necessary in the heat pump hydraulics: an
auxiliary intermediate heat exchanger, an additional
mixer valve and an auxiliary diverter valve. In the case
of Vaillant heat pumps with cooling functions, the princi-
ple of "passive" cooling is applied, in which heat is
transported via an underfloor heating from the rooms
to the ground without compressor operation and there-
fore, without cold circuit operation. The heating circuit
water, which is colder than the room temperature ab-
sorbs heat from the room and is pumped via the heat
circulation pump into the intermediate heat exchanger.
The brine pump also conveys the colder brine from the
ground into the heat exchanger which is operated in the
counter flow principle. In the process, the warmer heat-
ing return emits heat to the colder brine circuit, so that
the brine which is heated to some degree is guided
again to the floor. The annealed heating flow circulates
again through the circuit of the underfloor heating
where the water can reabsorb heat from the surround-
ings. Thus, the circuit can start over again.
2.3 Design of the heat pump
A 175 litre domestic hot water cylinder is integrated in
the geoTHERM exclusive heat pump. The Vaillant
geoTHERM heat pump is available in the types listed
below. The heat pumps are, above all, different from
each other in their output.
Type name Heating output (kW)
Brine water heat pumps (S0/W35)
VWS 63/2 230V GB 6.0
VWS 83/2 230V GB 8,1
VWS 103/2 230V GB 10.5
Table 2.2 Type summary
You can read the type designation of the heat pump
from the sticker (see Fig. 2.5, Item
1 ) on the pillar frame.
The heat pump is designed to implement all current
electrical supply tariffs.
The heat pump is dismantled into two modules in order
to ease transport to the site of installation (see also
chapter 4.10):
– the domestic hot water cylinder module (
1 )
– the heat pump module ( 2 )
Fig. 2.4 Dismountable module of the heat pump geoTHERM ex-
clusive
Description of the appliance 2