KOB KOB PYROT SERIES, Operation And Maintenance Instructions

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7.1 Installing the displacement rods into the
heat exchanger
The displacement rods improve the heat transmis-
sion in the heat exchanger and reduce the tem-
perature of the exhaust gas, thus improving the ef-
ficiency of the heating system. They are taken out
to clean the heat exchanger tubes and then put
back in.
Insert the displacement rods into the heat ex-
changer tube with the thick end first. Push until
they are flush with the bottom of the tube. Tole-
rance +/- 5 mm.
Remove the displacement rods with a pair of pli-
ers, as shown below. The heat exchanger should
be cleaned at the intervals prescribed so that, on
the one hand, performance and efficiency are
maintained, and on the other, the displacement
rods can be easily removed.
Flush with
the bottoms
of the tubes
Fig. 1
Fig. 2