
Green Heating Technology
18
Condense drain
Insert the flexible pipe of condense outlet inside the outlet funnel (or other inspectable connection de
-
vice) properly installed for this purpose, or in the outlet funnel of the safety valve, in case of the above
mentioned outlet is able to receive the acid liquids of the condense as foreseen by the norms in force
in matter of condensing boilers.
Requirements for the condense drain system:
◦ It must be made in a way that doesn't allow the condense freezing or other blockages, and it
must not allow modifications or obstructions
◦ before the first starting up of the appliance, ensure that the condense can be correctly drained
◦ if the intended use of the building unit foresaw the installation of a condensate neutralization
system, make sure that you have the relevant instructions for use, cleaning and maintenance
Heating system filling and pressuring
Once all system connections have been carried out, proceed with system filling. This operation should
be made with care, respecting the following steps:
f
Open the radiators venting devices;
f
Check that the plug of the automatic air vent, incorporated in the boiler circulator, is unscrewed: if
not, unscrew it and leave it unscrewed, even afterwards, for normal operation;
f
If it's required to fill the system with anti-freeze solution, do this operation, then hermetically close
the connection or the valve used to put the solution in, to allow the pressurization.
f
Gradually open the filling cock
2
;
f
Check the correct functioning of automatic venting
devices, eventually installed;
f
Close the radiators venting devices as soon as water
flows out of them;
f
Make sure, by reading the pressure gauge
1
, that
the pressure reaches the optimal value of
1.0 bar
(max 1.5 bar)
;
f
Close the water filling cock
2
and bleed each radia-
tor again;
f
Repeat the venting and pressurization operations
until the air is completely purged from the system.
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