Checking Electrical Connections For Tightness 21. Checking The Condensate Drain And Cleaning The Siphon (If Installed); Checking The Neutralising System (Accessories); Checking The Active Charcoal Filter (Accessories); Adjusting The Standard Burner Settings - Viessmann Vitoladens 300-C Service Instructions Manual

Further details regarding the individual steps
Note
Refit in reverse order.
Checking the condensate drain and cleaning the siphon (if instal-
led)
1. Check at siphon (see page 9), that
the condensate can freely drain off.
2. Clean the siphon.

Checking the neutralising system (accessories)

Subject to a neutralising system being housed in the boiler plinth:
■ Remove the front cover from the plinth.
■ Extract the neutralising system from the plinth.
■ When installing the neutralising system ensure that the hoses are not kinked, and
that no backup loops are created.
Check the function of the neutralising
system:
Check the pH value of the condensate
with pH test strips.
Replace the granulate if the pH value
< 6.5.

Checking the active charcoal filter (accessories)

Note
Please observe the instructions of the manufacturer of the active charcoal filter sup-
plied.

Adjusting the standard burner settings

Note
To be able to adjust the burner, there
must be a heat demand and heat trans-
fer must also be assured.
Commissioning, inspection, maintenance
3. Fill the siphon with water.
Note
Part no. for pH test strips: 9517 678.
Please observe the instructions of the
manufacturer of the neutralising sys-
tem.
(cont.)
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