FLUE EXHAUST AND EXTRACTION OF COMBUSTION AIR
528
320
433
138
100
208
Øi
A
Dimensions
S - AF
115
150
200
240
280
Øi (internal)
150
200
mm
A
108
133
“TYPE B” installations
B23
b
WARNINGS
•
S - AF appliances are equipped with a flue exhaust
sensor, which in the event of anomalous increases in flue
temperatures, shuts down the appliance.
•
In this configuration, the appliance receives the combustion
air from the installation room, which MUST BE FITTED
with ventilation outlets installed in compliance with the
specifications of the relevant technical standards.
•
For the flue duct, the use of stainless steel piping is
recommended, in compliance with standards EN1856-1 and
EN1856-2.
•
The flue duct must ensure a minimum negative pressure
as envisaged by current technical standards, considering “zero” pressure at the fitting with the flue duct, and must be
equipped with a condensate drain trap. The condensate drain of the heating unit must only extract condensate from the
heating unit and flue duct.
•
Connect the condensate collection syphon to a clear water drain.
•
Drain pipelines that are not insulated constitute a potential hazard.
•
The flue duct must be correctly sized for condensing heating units. Inadequate or incorrectly sized flue ducts
and pipelines can cause problems with combustion parameters and excessive noise.
•
IT IS STRICTLY PROHIBITED to seal off or partially obstruct the ventilation apertures of the installation room and the
appliance.
•
Envisage a 3% inclination of the flue gas duct toward a condensate collector.
- 26
-
INST
ALLA
TION
