43
6.4
Testing combustion efficiency
6.4.1 “Chimney sweep” function
1
2
3
The boiler is equipped with “chimney sweep” function, to be
used when testing combustion efficiency, and in order to adjust
the burner.
To activate this function, it is necessary to open the front section
of the casing for access to the controls. Proceed as follows:
unscrew two of the four screws securing the casing – either
those on the left or those on the right (1, pic. 9);
open the casing without removing it (, pic. 9);
remove the control panel mask by pulling the hooks on either
side outwards and pulling the mask towards you (3, pic. 9).
The control panel is represented in picture 30.
When no. selector (pic. 1) is positioned to WINTER, and ambi-
ent thermostat (if available) to ON, while the boiler is operating,
press button
(pic. 30) for at least 10 seconds; the boiler
turns off and resumes the ignition sequence again to the maxi-
mum heat output corresponding to
max
trimmer setting (pic.
30), which allows for adjustment of maximum CH output.
“Chimney sweep” function operates for 15 minutes.
In order to exit the “chimney sweep” function, set no. selector
to any position other than WINTER for a 10 seconds and then to
the desired position.
pic. 29
pic. 30
6.4.2
Measurements
Coaxial pipe system
Proceed as follow to verify combustion performance.
-
Measure air intake through hole (A, picture 31)
-
Measure flue gas and CO
temperature through
hole 1 (A, picture 31)
Allow the boiler to react working temperature before taking the readings.
Split pipe system
Proceed as follow to verify combustion performance.
-
Measure air intake through hole (B, picture 31)
-
Measure flue gas and CO
temperature through
hole 1 (B, picture 31)
Allow the boiler to react working temperature before taking the readings.
1
2
1 2
AIR
FLUE GAS
B
A
pic. 31
Summary of Contents for Tahiti Condensing 24 kW Combi (KC)
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