The Siphon; Check Neutralization Unit.(If Applicable) - Viessmann VITODENS 222-F Service Instructions Manual

Vitodens 222-F B2TB 19 and 35 Service
Checking the Condensate Drain and Cleaning the Siphon
Check Neutralization Unit
1. Check that the condensate can drain freely
in the siphon.
2. Pull retaining clip A off.
3. Pull filler pipe B upwards.
4. Pull off trap C downwards.
5. Pull the condensate hose from trap C.
6. Clean the siphon.
7. Fill siphon with water and reassemble.
8. Check that the condensate pipe is connected
correctly to the siphon and heat exchanger.
IMPORTANT
If the condensate does not drain freely, condensate will
accumulate in bottom part of boiler resulting in a burner
shut-down (fault message).
Legend
A Retaining clip
B Siphon trap
C Discharge tube
(if applicable)
1. Check the pH value of the condensate with pH
measuring strip. If the pH value is less than 6.5,
replace granulate.
2. If contaminated:
Rinse neutralization unit with tap water.
3. Add granulate as marked.
IMPORTANT
pH measuring strip must be field supplied.
IMPORTANT
The granulate is consumed as it neutralizes the
condensate. The red marking indicates the minimum
filling level.
Refer to Installation Instructions
Neutralization Unit (if applicable)
Refer to Installation Instructions
Neutralization Unit (if applicable)
Service
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