49
Venting the heating system
A
1.
Close the gas shut-off valve and
switch the control unit ON.
2.
Check whether the air vent screw in
quick-action air vent valve
A
of the
heating circuit pump is open.
3.
Activate venting program (see next
chapter).
Note
For function and sequence of the
venting program, see page 162.
4.
Check the system pressure.
5.
Open the gas shut-off valve.
Activating the venting function
Service menu
1. Press
OK
and
å
simultaneously for
approx. 4 s.
2.
"Service functions"
3.
"Venting"
Venting function is enabled.
4. Ending venting function:
Press
OK
or
ä
.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5773 238 GB
Service
Содержание B2UA
Страница 10: ...10 13 14 15 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 11: ...11 16 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 12: ...12 sF 17 19 21 20 18 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 13: ...13 24 22 23 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 14: ...14 27 26 25 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 15: ...15 28 2x 2x 29 30 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 21: ...21 Removing the front panels 2 4 2x 1 3 5 Installation sequence Installing the boiler 5773 238 GB Installation ...
Страница 22: ...22 Siting and levelling the boiler 1 2 SW17 Installation sequence Installing the boiler cont 5773 238 GB ...
Страница 29: ...29 2x 4x 4 3 5 2 1 Installation sequence Opening the control unit casing 5773 238 GB Installation ...
Страница 39: ...39 5 4 2 6 2x 3 1 Installation sequence Closing the control unit casing 5773 238 GB Installation ...
Страница 41: ...41 2x 1 4 2 3 5 Installation sequence Fitting the front panels 5773 238 GB Installation ...
Страница 185: ...185 0010 0004 0001 0003 0004 0005 0009 0006 0007 0008 0007 0002 Parts lists Cylinder module cont 5773 238 GB Service ...
Страница 199: ...199 5773 238 GB ...