23
Installation
(cont.)
1.
Route pipes so that they can be
completely vented. 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 fig. on pageĂ22).
2.
Equip the system to ENĂ12
Ă
975
with expansion vessel, safety
valve and circulation pump.
3.
The expansion vessel must be
approved to DINĂ4807, and must
be arranged with a heat insulating
loop.
The diaphragms and seals of the
expansion vessel and the safety
valve must be suitable for the heat
transfer medium.
For the calculation of the
charge pressure, see the
service instructions.
4.
When operating a solar heating
system without Solar-Divicon, use
only safety valves designed for a
max. of 120Ă
º
C and 6Ăbar bearing
the marking "S" as part of the
component identification.
5.
Make all unions pressure and
temperature resistant (observe the
max. standby temperature of the
solar panel).
5862Ă511 GB