2.
Press
K
and
F
simultaneously
until a value flashes (e.g. "85") and
"
A
" appears. In the delivered con-
dition, this value represents 100 %
of rated output.
On weather-compensated control
units, the display additionally
shows
"Max. output"
.
3.
With
a
/
b
select the required
value in % of rated output as maxi-
mum output.
4.
Confirm the set value with
d
.
5.
Record the settings for maximum
output on the additional type plate
included with the "technical docu-
mentation". Affix the type plate next
to the original type plate on top of
the boiler.
Note
The output can also be limited for
DHW heating. For this, change coding
address "6F" in code 2.
Checking the balanced flue system for tightness (annular
gap check)
A
Combustion air port
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 applic-
able.
We recommend that your heating
engineer carries out a simple leak/
tightness test during the commission-
ing 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.
Further details regarding the individual steps
(cont.)
16
Commissioning, inspection, maintenance
5692
673
GB
Summary of Contents for VITODENS 300-W
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