User Manual

Installation
31
EN
Combustion gas discharge
Combustion gases may be discharged by
means of hoods connected to a flue with
reliable natural draught, or a fan extraction
system. An effective extraction system
requires careful design by an authorised
specialist, and must comply with the
regulation distances and positions. After
installation, the engineer must issue a
certificate of compliance.
1 Extraction using a hood.
2 Extraction without a hood.
A Single natural draught chimney.
B Single chimney with extractor fan.
C Directly outdoors with wall- or window-
mounted extractor fan.
D Directly outdoors through wall.
Air
Combustion products
Extractor fan
5.3 Adaptation to different types of
gas
In case of operation with other types of gas,
the burner nozzles must be changed and
the minimum flame adjusted on the gas
cocks.
Replacing nozzles
1. Remove the grids, burner caps and
flame-spreader crowns to access the
burner cups.
2. Replace the nozzles using a 7 mm
spanner according to the gas to be used
(see Burner and nozzle characteristics
table).
3. Replace the burners in their respective
housings.
1. Internal nozzle
2. External nozzle