b
WARNINGS
•
The 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 configuration ”C” the appliance takes in combustion air from outside the installation room and therefore does NOT
REQUIRE ventilation outlets.
•
The use of stainless steel flue ducts is recommended, in compliance with standards EN1856-1 and EN1856-2. If using
ducts in PPS, these must be certified and fitted with a condensate collector upline of the flue connection of the heating
appliance.
•
It is compulsory to use terminals that comply with the requirements of standard EN1856-1.
•
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 run the appliance if the flue exhaust ducts and combustion air intake ducts are not
suited to the installation.
•
Envisage a 3% inclination of the flue gas duct toward a condensate collector.
The heating appliance is delivered with the configuration B23.
To intake air from the outside it is necessary to connect a plastic pipe with diameter of 100mm to the appliance intake outlet,
bearing in mind that this pipe must not allow pressure drops over the value specified in the table below.
The air inlet and flue outlet must be located in an area with the same pressure values.
A protection mesh is fitted on entry to the air duct to prevent the ingress of foreign bodies.
Calculations for the flue outlet and air inlet: the table below specifies the overall residual head available for the flue outlet
and combustion air inlet.
Description
S - AF
115
150
200
240
280
Total residual head (e intake)
320
233
100
180
85
Pa
Ensure that the head required does not exceed the values as stated in the table; otherwise there is the risk of pressure
switch intervention with consequent shutdown of the heating appliance.
- 28
-
INST
ALLA
TION
Summary of Contents for S-AF
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