Spheros Thermo S 160, Workshop Manual

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3 Assemblies and components Thermo S 160/230/300/350/400
306
3.3 Combustion chamber
The combustion chamber is used for generation and
combustion of the fuel air mixture. The generated exhaust
gas heats the coolant flowing through the heat exchanger.
Three different combustion chambers are used for heaters
of the Thermo S series. Deviating from the standard
combustion chamber variant for Thermo S 230, S 300 and
S 350, the Thermo S 160 is equipped with a combustion
chamber with a sheet metal swirler and the Thermo S 400
is equipped with a burner pipe with increased wall
thickness (1.5 mm).
The combustion chambers of Thermos S 160 and Thermo
S 400 are each fitted with a stamping to distinguish the
individual combustion chambers.
If possible, the combustion chamber should be inserted
into the heat exchanger in such a way, that the burner
pipe welding seam is between 60° and 300° in the lower
area.
At the same time it must be ensured that none of the
4 cut-outs of the combustion-chamber head points
vertically downwards (see figure on the right).
It is permissible to change t he position during maintenance
or after combustion chamber replacement vs. the previous
installation position.
Combustion chamber
Identification
of the heating
capacity class
Welding seam
Swirl plate
16 KW
23 - 35 KW
40 KW
Cut-out positions
on the combustion
chamber head
in installe d condition
NOTE