Installation - Viessmann VITOSOL 300-T Installation Instructions Manual

Hydraulic connections
6. The first and last tubes of a col-
lector must be secured to the
dual-pipe heat exchanger with a
clip.
7. Secure the tubes with the retain-
ing rubber.
8. Fit the collector temperature sen-
sor in the connecting chamber
that is the furthest west. Push the
sensor as far as possible into the
retainer.

Installation

!
Please note
Incorrect installation can lead to collector damage.
Use only gunmetal or brass fittings and copper pipes for the installation.
Use hemp only in conjunction with pressure and temperature-resistant
sealants (e.g. Viscotex Solarpaste from Locher, CH-9450 Altstätten,
Switzerland).
Never step onto solar panels.
Never solder near or on the collector.
1. Position pipes so that complete
ventilation is guaranteed. Install at
least one air vent valve with shut-
off facility at the highest point of the
system. Install an air separator at
an accessible point in the pipework
(see the following diagram).
2. Equip systems in accordance with
EN 12975 with expansion vessel,
safety valve and circulation pump.
(cont.)
9. Secure the sensor with a PG
thread on the chamber.
Route the connecting cable so
that it does not come into contact
with the hot tubes.
10. Close the chamber and push the
rubber seal down.
3. The expansion vessel must be
approved to DIN 4807 [or local reg-
ulations] and must be installed with
a thermal insulating loop. The dia-
phragms and seals of the expan-
sion vessel and the safety valve
must be suitable for the heat trans-
fer medium.
For the calculation of the
inlet pressure, see the
"Vitosol" service instruc-
tions.
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