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Instructions for the installer
3.8 - FLOW AND RETURN PIPE CON-
NECTIONS
TheCHowandreturncircuitshavetobeconnectedtothe
boiler via the respective connections 2½“ M and R as indicated
on page 11.
When determining the size of the CH circuit pipes it is essential to
bear in mind the pressure losses induced by any of the system’s
componentsandbythecongurationofthesamesystem.
The route of the piping has to be conceived taking all the ne-
cessary precautions in order to avoid air locks and to facilitate
the continuous purging of the system.
WARNING!
IT IS ABSOLUTELY FORBIDDEN TO FIT ON-
OFF VALVES ON THE GENERATOR TO THE
FORE OF THE SAFTEY DEVICES
WARNING!
Before installing the boiler we recommend
that the system is ushed out with a suitable
product in order to eliminate any metallic
tooling or welding residues, oil and grime
which could reach the boiler and affect the
proper running of the boiler.
Non-observance of these instructions could cause injury
to persons, animals or damage to property.
The manufacturer shall not be held liable for
any such injury and/or damage.
Ensure yourself that the system’s piping is not
used as the earth clamps for the electrical or te-
lephonic system. They are absolutely unsuitable
for this use. In a short time this could cause se-
rious damage to the piping, boiler and radiators.
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