Vaillant geoTHERM VWS Series, Руководство по установке

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Installation instructions geoTHERM VWS/VWW 0020057444_01
4.12.3 Assembly of the well system (VWW only)
a
Caution!
Risk of damage!
Make sure that no negative pressure can
arise in the lines during operation and
after the well pump has been switched
off. The flexible hoses within the heat
pump can be damaged as a result of neg-
ative pressure in the lines.
With water as the heat source, the well system is in
most cases implemented with a suction and injection
well. The customer-side well pump (immersion pump)
should be fitted in the suction well. Follow the well pump
installation and assembly instructions in this respect.
See Chap. 6.4.4. for the electrical connections to the
well pump
When using ground water as a heat source, the quality
of the water must be investigated before installation. To
this end, a water sample must be examined in the labo-
ratory and, using the aids provided by Vaillant for as-
sessing ground water quality (tables, calculation soft-
ware), a decision made as to whether the ground water
can be used as a heat source. In the event of poor
ground water quality, it may be necessary to use a
VWS heat pump with a customer-side intermediate heat
exchanger (for more details, see Vaillant PLI geoTHERM,
No. 877959).
• Install the heat source pipes and all their associated
components.
• Provide all the pipes with vapour-proof thermal insula-
tion. The accessory kit contains an insulation mat for
insulating the connection plate.
4.13 Fitting the VRC DCF outside temperature
sensor
Fit the sensor in accordance with the enclosed installa-
tion instructions.
4.14 Fitting the VR 90 remote control unit
If you install several heating circuits, you can connect a
separate VR 90 remote control unit for each of the first
eight of them. It allows the operating mode and target
room temperature to be set, and takes into account the
actual room temperature measured by the built-in room
sensor, if necessary.
It is also possible to adjust the parameters for the asso-
ciated heating circuit (timer programme, heating curve
etc.) and to select the special functions (party, etc.).
In addition, it is possible to query the heating circuit and
to display service and fault messages.
For assembly of the VR 90 remote control unit, see its
enclosed installation instructions. Regarding installation
see Chapter 6.9.1.
4.15 Installing the VR 60 mixer module
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.
A unique bus address is set on the mixer module by
means of a rotary switch. The setting of the heating
programme and all the required parameters is carried
out from the operating console. All heating circuit con-
nections (sensors and pumps) are made directly on the
mixer module using a ProE plug.
For assembly of the VR 60 mixer module, see its en-
closed installation instructions. Regarding installation
see Chapter 6.9.2.
5 Filling the heating and heat source
systems
The heating circuit and the brine circuit (VWS only)
must be filled before the heat pump can be put into op-
eration.
h
Note!
The heat pump cladding sections are
only fitted after the filling and subse-
quent bleeding of the heating circuit.
5.1 Filling the heating circuit
a
Caution!
Malfunction!
Fill the heating circuit via the integrated
filling and draining valve, so that the
heating circuit is completely bled.
If there is a DHW cylinder connected,
make sure that the 3-way valve is in the
centre position.
• If there is a DHW cylinder connected, set the 3-way
valve (see Fig. 2.6, Item 16 ) to the centre position.
• Open all the thermostatic valves in the heating sys-
tem.
• Connect a filling hose to a water tap.
• Attach the free end of the filling hose to the filling
valve (see Fig. 2.6, Item 8 ).
• Open the filling valve.
• Turn the water tap on slowly and fill with water until
the pressure gauge indicates a system pressure of ap-
prox. 1.5 bar.
• Close the filling valve and detach the hose.
• Bleed the system again at the points provided.
• Re-check the water pressure in the system (repeat the
filling process if necessary).
Assembly and installation 4
Filling the heating and heat source systems 5