Viessmann VITODENS 111-W Installation And Service Instructions Manual page 53

Checking the condensate drain and cleaning the...
3. Undo the hose clip. Remove the black supply
hose.
4. Pull trap upwards out of the drain hose.
5. Hold trap as straight as possible and remove.
Ensure that no condensate runs out.
6. Clean the trap.
7. Fill the trap with water and refit it on the drain hose.
!
Please note
If the trap is not filled with water, flue gas
can escape.
Only start the appliance when the trap has
been filled.
Multi boiler system:
Clean the trap in the flue gas collector as well.
Commissioning, inspection, maintenance
(cont.)
8. Reconnect the supply hose and secure in place
with the hose clip. Check that connections on the
trap and heat exchanger are seated correctly.
9. Danger
Risk of electric shock from escaping conden-
sate and risk of poisoning from escaping flue
gas.
Check the connections for leaks and check
that the trap is seated correctly.
Note
Route the drain hose without any bends and with a
constant fall.
53