34
Fig. 31
No sound insulation due to incorrect fixing
points
Fitting the Victaulic couplings
Fig. 32
1.
Clean all Victaulic connections.
2.
Open Victaulic coupling
B
around 1 cm.
3.
Push Victaulic coupling
B
with inserted gasket as
far as it will go onto connection pipe
A
in the heat
pump.
4.
Insert adaptor connector
C
as far as it will go into
Victaulic coupling
B
.
5.
Engage Victaulic coupling
B
with a positive inter-
lock and no gaps.
6.
Carry out a pressure test.
Note
Only use the adaptor connector with flange (accesso-
ries) provided.
Connecting the primary circuit
!
Please note
The heat transfer medium can cause corrosion
damage to on-site lines and components.
Use components and pipes that are resistant to
the heat transfer medium. Never use zinc-
plated/galvanised pipes.
1.
Equip the primary circuit with an expansion vessel
and safety valve (in accordance with DIN 4757).
Note
■
The expansion vessel must be approved to
DIN 4807. Diaphragms of the expansion vessel
and safety valve must be suitable for the heat
transfer medium.
■
Discharge and drain pipes must terminate in a
container that can hold the maximum possible
expansion volume of the heat transfer medium.
2.
Ensure adequate thermal and anti-vibration insula-
tion of all pipes routed through walls.
3.
Connect the primary pipes to the heat pump.
!
Please note
Hydraulic connections subjected to mechani-
cal stress lead to leaks, vibrations and appli-
ance damage.
Connect on-site lines so that they are free of
load and torque stress.
!
Please note
If the casing is not carefully closed, damage
from condensation may occur.
■
When inserting cables, ensure the dia-
phragm grommets are seated correctly.
■
Ensure airtight sealing of the grommets
around the hydraulic lines.
4.
Insulate primary lines inside the building with ther-
mally insulating and vapour diffusion-proof materi-
als.
5.
Fill the primary circuit with Viessmann heat transfer
medium and vent. See page 56.
Installation sequence
Making the hydraulic connections
(cont.)
5855865
Installation
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