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TECNIKA 28-35
USE AND INSTALLATION MANUAL
Chapter
6
page 42
Start-up procedures
Technical dept. - All rights reserved - Reproduction prohibited
Figure 6.8.2
View
of primary air control fin and air distribution box.
EXPLANATION: the mobile lid is provided to allow to visually inspect the primary air control fin. The lid must
close the opening in nominal operating conditions.
Adjusting the combustion process
The operating parameters defining the hot water boiler heat output must be adjusted by authorised
technicians to guarantee an efficient combustion process and optimal operation of the appliance. It is
advisable to adjust the combustion process by means of measurements made with a combustion gas
analyser.
The flame released from the burner opening is sent downwards thus reaching the ceramic combustion
gas ducting element positioned in the boiler combustion chamber. The flame colour in nominal
operating conditions with an optimal combustion process (i.e. when the process occurs with low CO
content in combustion gases and low excess air ratio) will be
bright yellow
with
blue
edges.
Mobile
lid
of
the
inspection
opening
for
observing
the
position
of
the
primary
air
control
fin
Primary
air control
fin
Primary
air
control
fin
opening
direction
(to
increase
primary
air
flow)
Primary
air
control
fin
closing
direction
(to
decrease
primary
air
flow)
