Installation manual

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opening has to have a net section not smaller than the ventilation door and it is to be
protected by means of grilles or similar devices
• in order to warranty a suitable ventilation section, with a ∅ 80 mm flue duct, it is
necessary and sufficient a building internal or closed part having an 100 x 100 mm
internal side or a ∅ 113 mm circular side
• in the event that the section between the flue outlet duct and the building internal or
closed part is necessary for feeding the system components with carburant air, it has to
be open on the top, serviceable, and to be suitably dimensioned; its free section is
supposed to correspond at least to 150% of the flue duct; the section of the ventilation
door is not supposed to be reduced of more than 10% by the joints and spacers used
for fixing or truing the duct inside the closed part.
Multiple outlet systems are allowed provided that the following conditions are respected
(beside the requirements concerning the single tubing duct above mentioned):
• a minimum distance of 2 cm is to be respected between the flue duct external wall and
the closed part internal wall
• a minimum distance of 2 cm is to be respected between the external wall of the flue
outlet duct and that of any other duct
• on the top of the multiple system every single outlet system has to have a plate or other
identification devices.
• Every chimney manufacturer is able to provide the most suitable flue taking into
consideration the place, power, capacity, allowed loss of capacity and number of
boilers to install. Require the relative certificate and calculation according to regulations
in force
2.25 Solar system functioning
The solar system integrated in the boiler control board use these hardware resources to
control:
1. Relay solar pump for circulator control;
2. Collector probe (PT1000, is not the same probe usually used in the tanks. The
difference is that it is enveloped in the black sheath);
3. Lower tank probe (NTC 10K);
4. Medium tank probe or tank solar probe (NTC 10K ).
Solar system functioning can be activated in summer and also in winter as sanitary
integration. The activation is performed by 4 parameter ; its configuration mode is
described in chapter 3.2
To wish that only solar mode be activated, usually in summer, it’s possible to choose one
of these configurations, to bear in mind that 4 parameter must be always activated and
value 1 must be selected:
3. selector =SUMMER or selector = OFF;
4. heating selector at minimum;
The control board functions only in solar system.
In the solar mode only is deactivated any request of ignition external burner (sanitary
request) while antifreeze and anti-legionella stay active.
In the mode “only solar” into display are visualized the solar panel icon and the collector
temperature.