RED TECNIKA 28 Use And Installation Manual page 41

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Figure 6.8.1 View of primary air control fin axis fastening screw
It must be possible to easily change the position of the fin by loosening the fastening screw, by manually
pushing or pulling the fin axes (i.e. changing its position). You are keenly recommended to change the
position of the fin by minor adjustments, approximately 1 or 2 mm at a time, and then fix the primary air
control fin using the specific screw.
EXPLANATION: minor movements of the primary air control fin axes have considerable effects on the
combustion process operating conditions and on the general performance of the boiler. For this reason, any
change to the boiler air distribution setting must be followed by an adequate time before the expected result
is obtained. Practical experience shows that using wood logs compliant with the requirements above the
primary air control fin should be closed (pushed back and inwards). However, if the fuel contains more
humidity than required, the primary air control fin should be open so as to assist fuel pyrolisis in the hopper
chamber. In order to do this, adjust the position of the primary air control fin in small steps to obtain
gasification of the raw fuel.
Start-up procedures
TECNIKA 28-35
USE AND INSTALLATION MANUAL
Air distribution box
Primary air control fin axes
Primary air control fin axis
fastening screw
Technical dept. - All rights reserved - Reproduction prohibited
Chapter
6
page 41