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For the backboiler unit, the procedure involves cleaning the air flow pipes and turbulators. To do this, open the lid on the top of the
unit (Figure 35-a and b) and remove the four sticks (Figure 35-c and 35-d). Then pull the turbulators up (Figure 35- e). A vacuum
cleaner must be used to clean this area (Figure 35-f) and the interior of the pipes can be cleaned with a steel brush. The turbulators
that are removed must also be cleaned with a steel brush.
To reinstall the turbulators, execute in reverse the above procedure shown in the figures.
a) b)
c) d)
e) f)
Figure 35 – Cleaning of gas passageways and turbulators