22
A
B
Fig. 12
1.
Disconnect the drain hose for neutralising system
B
from trap
A
.
2.
Connect the cleaning hose to the trap and route it
to the drainage system.
3.
Clean the inside of the condensate drain pipe
(hose, pipes) and trap
A
.
4.
Fill the lower section of trap
A
with water and
reassemble.
5.
Reconnect the drain hose for the neutralising sys-
tem to the trap. Route the drain hose without kinks
and with a constant fall.
Checking the condensate drain and neutralising system (if installed)
1.
Fill the combustion chamber with water.
Note
The water must flow from the condensate drain
pipe without backing up.
If necessary, clean the condensate drain pipe
again.
2.
If necessary, clean the neutralising system in
accordance with the manufacturer's instructions.
Neutralising system operating instructions
Note
Neutralising medium from Viessmann Werke
GmbH & Co. KG, part no. 9521702.
3.
Check entire condensate drain pipe for leaks.
Commissioning, inspection, maintenance
Cleaning the condensate drain pipe and trap
(cont.)
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