On-Site Installation - Vaillant geoTHERM VWS Installation Instructions Manual

4.12

On-site installation

a Caution!
Flush the heating system thoroughly be-
fore connecting the appliance!
By doing that, residue such as welds,
cinder, hemp, putty, rust, rough dust and
similar substances are removed from the
pipes. Otherwise such substances can be
deposited in the appliance and cause da-
mage.
a
Caution!
To prevent leaks, take care that no me-
chanical stresses are created on the
connection lines!
- The pipework installation must be carried out in ac-
cordance with the dimensional and connection dra-
wings in Fig. 4.1.
- The installation must be performed by a specialist fit-
ter.
- The applicable regulations must be observed during
the installation.
h Note!
Air in the heating system leads to im-
paired operation and reduces the heating
output. Fit bleed valves as required.
Installation instructions geoTHERM VWS 0020046310_01
Assembly and installation 4
7
Fig. 4.12 Fitting the connection elbows
Key to Fig. 4.12
1 Heating feed
2 Heating return
3 Return to domestic hot water cylinder
4 Heat source to the heat pump
5 Heat source from the heat pump
6 Insulating pad
7 Blanking plugs
a Caution!
To avoid leaks, take care that the cor-
rect seals are used on the connecting el-
bows!
Leaks can result if the seals with the
metal support ring are not used in the
heat source circuit!
• Remove the blanking plugs from the appliance con-
nections (7). They are no longer needed and can be
disposed of.
• Fit the three connecting elbows (1 to 3) with the yel-
low/green gaskets supplied with the accessories.
• Fit the two connecting elbows (4 and 5) with the seals
with the metal support ring supplied with the accesso-
ries.
• The accessory kit contains an insulating pad for insu-
lating the connection plate. Fit this insulating pad to
the two right hand screwed connections (6).
1
2
3
4
5
6
19