eta PelletsCompact PC33, Installation Manual

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General information Information for installation
penetration of the chimney by moisture cannot be
ruled out so that it may be necessary to replace the
inner pipe (Criteria for Determination of Suitability and
Safe Use of Heating Systems - October 29th 2008,
page 12).
Replace inner pipe after a soot fire
After a soot fire, the inner pipe is in all likelihood no
longer sufficiently leakproof, making the chimney
subject to damage by moisture. In this case, the inner
pipe needs to be replaced without fail, regardless of
whether its resistance to soot fires has been checked
or not.
7.2 General information
Approval
All heating systems require approval. Enquire at your
building authority and ask your chimney sweep.
Antifreeze
If the building is unoccupied for longer intervals in
winter, up to 30% antifreeze can be added to the
heating water. To compensate for the disadvantage of
reduced heat capacity and increased flow resistance,
only slightly higher flow temperatures are needed.
Insulate contact sensors
If the pipe in the vicinity of a contact temperature
sensor is not insulated (e.g. in externally installed
heating circuit assemblies), lower than actual tempera-
tures will be measured. For this reason, the pipe
insulation of heating circuit flow sensors must not be
recessed or weakened. For uninsulated pipe systems,
mineral wool insulation at least 20 mm thick is required
for the measurement area over a pipe length of 20 cm
minimum.