barbas CUATRO-3 90, Instructions For Use, Installation And Maintenance

Page: 71 / 104

39
CUATRO-3 90
Installation instructions
3.3.2 Aeration / ventilation
The appliance generates: - heating air
- combustion air
Heating air (convection air) is devoted to the convection of heat from the appliance to
the room. The source of heat is in the room and stays there.
Combustion air is needed to keep the combustion going by drawing in air from the
room, of directly from outside, due to the natural draught of the chimney.
• Combustion air from the living-room:
The air inlet openings are located behind the operating ! ap. When using the
appliance, please ensure there is a suf" cient supply of fresh air: use a grate with a
minimum net opening in the outer wall of 150 cm
2
.
When necessary, the combustion air inlet Ø125 mm at the underside of the appliance
may be used. Through the hollow space, underneath the appliance, and a grate in
the chimney breast, combustion air can be supplied from the living room.
Make sure that the ventilation supply is open; this is particularly important with
today’s airtight dwellings
If the dwelling has mechanical ventilation that creates under pressure in the room
where the appliance is located, it is necessary to " t a ! ue gas fan.
The type of ! ue gas fan is dependent on the capacity of the mechanical ventilation
system. Always consult your " tter about this.
In dwellings with an operating extractor hood, this should be turned to the lowest
setting or turned off altogether. If the extractor hood remains in use, additional
ventilation must be provided in compensation. This will not only avoid poor
combustion, but will also prevent ! ue gases being sucked from the appliance into
the room.
Should creating an extra ventilation opening prove insuf" cient, it is then necessary
to " t a ! ue gas fan.