Setting The Maximum Output - Viessmann Vitodens 200 Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
9. Danger
Gas escaping from the test
port leads to a risk of explo-
sion.
Check for soundness.
Open the gas shut-off valve, start
the boiler and check the soundness
of test port A.
Supply (flow) Supply (flow)
pressure for nat- pressure for
ural gas LPG
below 17.4 mbar below 42.5 mbar
17.4 to 25 mbar 42.5 to 57.5 mbar
in excess of in excess of
25 mbar 57.5 mbar

Setting the maximum output

Note
The maximum output can be limited for heating operation. You can limit the
output via the modulation range.
1. Start the boiler.
2. Press both K and F simulta-
neously until "85" flashes on the
display, (equals 100% of rated out-
put) and "A" is displayed. 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.
14
(cont.)
Measures
Do not start the boiler. Notify your
mains gas or LPG supplier.
Start the boiler.
Install a separate gas pressure gover-
nor upstream of the system and regu-
late the inlet pressure to 20 mbar for
natural gas or 50 mbar for LPG. Notify
your mains gas or LPG supplier.
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.