Checking The Condensate Drain And Cleaning The Siphon; Checking The Neutralising System (Accessories) - Viessmann VITOLADENS333-F Service Instructions Manual

Further details regarding the individual steps
4. Thoroughly flush the combustion
chamber with water. Ensure that
the drain hose continues to termi-
nate in the vessel (see point 1).

Checking the condensate drain and cleaning the siphon

Checking the neutralising system (accessories)

Check the pH value of the condensate with a pH test strip. Replace the granu-
late if the pH value < 6.5.
Note
Part no. for pH test strips: 9517 678.
Please observe neutralising system manufacturer's instructions.
Commissioning, inspection, maintenance
(cont.)
1. Remove retaining clip A and
siphon B.
If required, push insert C up.
2. Fill siphon B with water.
3. Check at siphon B, that the con-
densate can freely drain off.
4. Fit siphon B and secure with
retaining clip A.
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