Assembly And Installation; Accessories; Requirements Of The Installation Site - Vaillant geoTHERM VWS Installation Instructions Manual

4 Assembly and installation

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. 5.8.
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 90 remote control unit
You can connect a separate remote control unit for the
first six heating circuits (HC 1 - HC 6).
VR 10 standard sensor
Additional sensors may be required, e.g. as flow, return,
collector or cylinder sensors, depending on the configu-
ration of the system.
vrDIALOG 810/2
vrDialog is a communications unit with software and
connecting cable which enables you to carry out diagno-
sis, monitoring and parametrisation of 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 provides an intermediate sto-
rage facility for heating water and can be installed
between the heat pump and heating circuit. It provides
the necessary energy to bridge over the power compa-
ny blocking periods.
Other accessories
- Heat transfer fluid
- Filling pump
- Safety assembly and tundish
- Expansion vessel for the heating circuit
12
4.2

Requirements of the installation site

– Choose a dry room that is generally frost-proof.
– The floor must be level and sufficiently stable to be
able to bear the weight of the heat pump, together
with a DHW and possibly a buffer tank.
– It must be possible to install suitable pipe conduits
(for heat source, DHW and heating).
– When choosing the installation site, bear in mind that
when operating, the heat pump can transmit vibra-
tions to the floor or nearby walls.
- In accordance with DIN EN 378 T1, the minimum instal-
lation space for heat pumps, (V
follows:
V = G/c
min
G = coolant fill quantity in kg
c = practical limit in kg/m
3
(c = 0.31 kg/m applies for R 407C).
This yields the following minimum installation space:
Heat pump type Coolant fill quantity
VWS 61/2 230 V
VWS 81/2 230 V
VWS 101/2 230 V
Table 4.1 Minimum installation space
Installation instructions geoTHERM VWS 0020046310_01
), is calculated as
min
3
Minimum
[kg] installation space
1.9 6.1
2.2 7.1
2.05 6.6