Emissions Test After Maintenance; Instructing The System User - Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual

Vitoligno 300-C Installation/Service

Emissions Test after Maintenance

Instructing the System User

Commissioning, Inspection and Maintenance
After commissioning, an emissions test must be carried out.
Carry out repeat emissions tests in the manner described.
Preparation
Clean flue gas routes and the chimney at least 3 days

before testing.
If the Lambda probe shows less than 20% O

clean the Lambda probe and calibrate (see page 104).
Operate the boiler continuously for at least 24 hours

between cleaning and testing.
Allow boiler to cool down before testing.

Test point
For the test point, observe the following:
Place measuring head centrally in flue pipe

Not directly next to the flue gas fan

Not upstream of a flue bend

If installed in the test route: Tightly close the chimney

damper/draught stabilizer.
Upstream of the test point: Distance to the boiler flue

outlet or last pipe bend: 2 x Ø of the flue pipe
Downstream of the test point: Stilling pipe (straight

pipe) with at least 1 - 2 x Ø of the flue pipe
Testing
For consistent test results, continuous heating operation
is essential. Therefore avoid modulating heating operation.
In test mode, the boiler heats with a consistent output until
the maximum boiler water temperature has been reached.
1. Ensure heat draw-off. Avoid modulating heating
operation.
2. Start the boiler.
3. In the standard menu: Enable "Test mode".
The display shows "Preparation". The boiler heats
until load operation. "Test active" then appears as
soon as constant heating operation has been reached.
4. Carry out emissions test.
Note: The duration of test mode can be set in the
"Test mode" menu.
5. Select "Terminate".
Note: Test mode is automatically terminated when the
test duration has passed or the maximum
temperature has been reached. Boiler switches
to control mode.
On the menu point "Test mode":
"Information": Display of temperatures, O

"Duration": Set time and confirm with "OK". Test

duration then begins afresh. When the boiler starts,
the test duration is set to 60 min.
Operating and service documents
File all parts lists, operating and service instructions in
the folder and hand this over to the system user.
Instructing the system user
The system installer must instruct the user in the
operation of the system and provide the user with the
cleaning brush.
when cold,
2
value, etc.
2
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