Technical documentation
Technical documentation
STEM@ ed 06/01
14
EOLO MAIOR @
FLUE CIRCUIT
- OPERATION
The combustion residues, after investing the water-gas exchanger (1), are conveyed to a hood (3) at the
top of which is a draught diverter (4).
Operation of the fan ensures forced extraction of the flues and at the same time creates a vacuum in the
sealed chamber (2) that permits extraction of the combustion air from outside.
Correct flue extraction is controlled by a differential pressure switch (5), operation of which enables or
does not enable burner ignition.
- AIR/FLUE SAMPLING SUMPS (6-7)
The top outer part of the chamber features two
sumps with screw closing accessible from the front
and through which combustion air (6) and flues (7)
can be extracted.
- FLUE PRESSURE SWITCH SIGNAL
PRESSURE POINT (8-9)
The top outer part of the sealed chamber features
two pressure points with screw closing for
measuring the signal at the ends of the flue pressure
switch (5).
The negative pressure point (8) is linked through a
Y-pipe to the top of the draught diverter and to the
negative pressure point of the flue pressure switch.
The positive pressure point (9) is directly linked to
the inside of the sealed chamber.
