Installation instructions geoTHERM VWS/VWW 0020051574_01
12
4 Assembly
and
installation
4.1 Accessories
You can fit the following accessories to expand the heat
pump system. You can find more detailed information
on the installation of accessories in Chap. 6.9.
Mixer module VR 60
With the mixer module, you can expand the control sys-
tem of the heating installation by two mixer circuits.
You can connect a maximum of six mixer modules.
VR 80 and VR 90 remote control unit
A separate remote control device can be connected
for the first eight heating circuits (heat zone 1 - heat
zone 8).
vrDIALOG 810/2
vrDialog is a communications unit with software and
connecting cable which enables you to carry out diagno-
sis, monitoring and parameter setting on the heat pump
from a computer.
vrnetDIALOG 840/2, 860/2
The vrnetDIALOG communications unit enables you to
carry out remote diagnosis, monitoring and parameter
setting on the heat pump from a computer over a tele-
phone connection or via an integrated GSM modem.
VPS heating water buffer cylinder
The VPS buffer cylinder is used as an intermediate cyl-
inder for heating water and can be installed between
the heat pump and the heating circuit. It provides the
necessary to bridge over the power company blocking
periods.
VPA combination cylinder
The Vaillant VPA combination cylinder can be fed from
various energy sources and is used for heating both
heating water and DHW.
Other accessories
- Heat transfer fluid
- Filling pump
- Safety assembly and tundish
- Expansion vessel for the heating circuit
4.2
Requirements of the installation site
- Choose a dry room that is generally frost-proof.
- You should not install the unit near heat sources or
combustible materials.
- The floor must be level and sufficiently stable to be
able to bear the weight of the heat pump, together
with the DHW cylinder and possibly buffer tank.
- It must be possible to install suitable pipe conduits
(for heat source, DHW and heating).
- A connection for the condensate drain must be pro-
vided.
- When choosing the installation site, bear in mind that
when operating, the heat pump can transmit vibra-
tions to the floor or nearby walls.
- To achieve the best possible sound attenuation, we
recommend that pipe lead-throughs in walls and ceil-
ings are insulated against structure-borne noise.
- In accordance with DIN EN 378 T1, the minimum size
of the installation space for heat pumps, (V
min
), is cal-
culated as follows:
V
min
= G/c
G = coolant fill quantity in kg
c = practical limit in kg/m
3
(for R 407C c = 0.31 kg/m
3
)
This yields the following minimum installation space:
Heat pump type
Coolant fill quantity
[kg]
Minimum installa-
tion space [m
3
]
VWS 220/2
VWW 220/2
4.1
4.3
13,2
13.9
VWS 300/2
VWW 300/2
5,99
19,3
VWS 380/2
VWW 380/2
6,7
21,6
VWS 460/2
VWW 460/2
8,6
27,7
Table 4.1 Minimum installation space
4 Assembly and installation
