Buderus Logano GA124 Installation And Maintenance Instructions Manual page 30

7 Boiler installation
7.6.4 Adjusting the combustion air baffle
Note the following when calculating the total flue
pipe length or combustion air pipe length.
– 1 x 90° elbow corresponds to 10 ft of pipe.
– 2 x 45° elbows correspond to 10 ft of pipe.
– If the combustion air pipe is longer than the flue pipe,
the combustion air baffle is adjusted depending on
the total length of the combustion air pipe.
USER NOTE
It is not necessary to consider the
condensation trap, the wall penetration
and the termination tee when calculating
the total pipe length.
Determining the combustion air baffle position
Unscrew cover of blower enclosure.
Calculate the extended length of the flue pipe or the
combustion air pipe by adding the individual
sections.
Calculate the adjustment dimension X of the
combustion air baffle with the extended pipe length in
Table 7-12.
Compare the setting of the combustion air baffle and
correct if necessary.
30 Installation and maintenance instructions Logano GA124 special gas-fired boiler • Issue 04/2005
Fig. 30 Adjusting the combustion air baffle
1 Combustion air baffle
2 Adjustment dimension X
We reserve the right to make any changes due to technical modifications.
1 2