Venting the boiler
1.
Close the shut-off valves on the
heating water side.
2.
Connect the drain hose on valve
A
with a drain.
3.
Open valve
A
and the fill valve in
the heating return and vent using
mains pressure (flush) until no
more air noise can be heard.
4.
Close valve
A
and the fill valve in
the heating return, and open the
shut-off valves on the heating
water side.
Venting the heating system
1.
Close the gas shut-off valve and
switch ON the control unit.
2.
Activate the venting program via
coding "2F:1".
Note
To call up coding level 1 and for
setting the coding address, see
page 46.
For function and sequence of the
venting program, see page 109.
Whilst the venting program is run-
ning, the display shows
"EL"
(Vitotronic 100) or
"Entlüftung"
(venting) (Vitotronic 200).
Further details regarding the individual steps
(cont.)
10
Commissioning, inspection, maintenance
56
92
682
GB
Содержание Vitodens 333-F
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