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INSTAllATION
4.3
Flue gas connection, flue gas line
Due to the low flue gas temperature, condensate forms in
the flue gas line and wind protection equipment.
§
The following directives must be complied
with regarding the flue gas evacuation:
• DVGW (TRGI)
• ÖVGW
• SVGW/VKF
• or corresponding locally applicable instruc-
tions and regulations
A flue gas temperature limiter as defined in
the aforementioned guidelines is installed in
the boiler.
§
The flue gas system must meet the following
requirements:
• Gas-tight
• Water-tight
• Acid resistant (plastic (PPs), acid-resistant
stainless steel, ceramic, glass)
•
Approved for flue gas temperatures of up to
120 °C (T 120)
• Approved for overpressure
!
WARNING
The flue gas lines must be secured against
unwanted loosening of the plug connections.
Horizontal connecting lines must be installed
with an inclination of at least 50 mm per me-
tre of their length installed in the direction of
the boiler to allow free return of condensation
water towards the boiler. The whole flue gas
system must be installed so that condensate
can never collect at any point.
• The cross sections and the maximum
lengths are calculated with reference to dia-
grams or tables. The tables are available from
the flue gas line manufacturer. The values for
the calculation can be found in the table un-
•
The flue gas conduit cross sections and
lengths are calculated according to the
specified technical data of the boilers.
• Combustion air:
- For airtight operation (optional accesso-
ries), the air duct should have the same
dimensions as the flue gas line.
-
If the flue gas line diameter is larger than
the combustion air line, an individual cal-
culation must be done.
The following only applies to countries in
which the wall duct is allowed:
For C53 construction boilers, the air intake
opening for the combustion air must not be on
the opposing wall of the exhaust opening of
the flue gas line.
Summary of Contents for 51-UltraGas 2 1000
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