Checking and cleaning the flue gas heat exchanger
1. Pull the plug from boiler water tem-
perature sensor B and tempera-
ture limiter C.
2. Release plug-in connector clip A
from the connecting pipe and
release fitting D.
3. Pull flue gas heat exchanger E
forward to remove.
4. Clean the flue gas heat exchanger,
if required, with compressed air or
with a soapy solution.
Flush with clean water.
Further details regarding the individual steps (cont.)
33
Commissioning, inspection, maintenance
5862 831 GB
Service
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