49
Weather-compensated control unit
Constant temperature control unit
Service menu
1. Press
OK
and
å
simultaneously for
approx. 4 s.
2.
"Service functions"
3.
"Max. output"
4.
"Change?"
Select
"Yes"
.
A value is shown on the display (e.g.
"85"
). In the delivered condition, this
value represents 100 % of rated heat-
ing output.
5. Set the required value.
Service menu
1. Press
OK
and
å
simultaneously for
approx. 4 s.
2. Select
"
3
"
with
Ú
and confirm with
OK
.
A value flashes on the display (e.g.
"85"
) and
"
A
"
appears. In the deliv-
ered condition, this value represents
100 % of rated heating output.
3. Select required value and confirm with
OK
.
Tightness test, balanced flue system (annular gap check)
A
A
Combustion air aperture (ventilation
air)
For balanced flue systems tested
together with the wall mounted gas fired
boiler, the requirement for a tightness
test during commissioning by the flue
gas inspector is not applicable.
We recommend that your heating engi-
neer carries out a simple leak/tightness
test during the commissioning of your
system. For this, it would be sufficient to
check the CO
2
or O
2
concentration in the
combustion air at the annular gap of the
balanced flue pipe.
The flue pipe is deemed to be gas-tight
if the CO
2
concentration in the combus-
tion air is no higher than 0.2 % or the
O
2
concentration is at least 20.6 %.
If actual CO
2
values are higher or O
2
val-
ues are lower, then pressure test the flue
pipe with a static pressure of 200 Pa.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5773 216 GB
Service
Содержание Vitodens 222-F B2TA series
Страница 12: ...12 2 5 1 4 2x 3 Installing the boiler Removing the front panels 5773 216 GB...
Страница 13: ...13 1 2 SW17 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation...
Страница 19: ...19 2x 4x 4 3 5 2 1 Installing the boiler Opening the control unit casing 5773 216 GB Installation...
Страница 29: ...29 5 4 2 6 2x 3 1 Installing the boiler Closing the control unit casing 5773 216 GB Installation...
Страница 31: ...31 4 1 5 2 2x 3 Installing the boiler Fitting the front panels 5773 216 GB Installation...
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