Ariston E-Combi 30 - Test Function and Combustion Analysis

32
commissioning
Test function and combustion analysis
The boiler has two pressure taps to measure the com-
bustion gas temperature, the combustive air and the
concentrations of O2 and CO2 on the outside of the
ue gas header.
To access these pressure taps, unscrew the screw
which holds the blanking cover and its seal to-
gether.
Checking the gas setting
To carry out analyses of combustion, the test func-
tion must be activated.
Maximum gas ow combustion analysis
Activate the test function at the maximum heating
power, pushing for 5 seconds the RESET until the
yellow led 9 blinks (also 60°C led is lit to indicate that
Chimney is at max. CH absolute) The rotate the CH
knob to the min., intermediate position or max posi-
tion it’s possible to switch between min, max CH ab-
solute and max DHW power (respectively the 40°C,
60°C and 80°C are lit to indicate the power level.
The function is automatically deactivated after 10
minutes or by pressing the RESET button.
Wait for the boiler to stabilise before carrying out the
combustion analyses. Check the CO2 value according
to the table below.
Important: do not remove silencer 17
N.B. When the front combustion chamber panel is
open, the CO2 value drops by 0.3%.
If the values taken dier from the table, adjust the
gas valve following the procedure described below.
Adjust the CO2 content to
± 0.2 by turning setting
screw 50 (2.5 mm allen key)
- tighten to lower the CO
2
value
- unscrew to increase the CO
2
value
Set the content by turning the screw about a 1/4 of a
turn then wait after each change for approximately 1
minute for the CO
2
value to stabilise, then repeat.
Minimum gas ow combustion analysis
Activate the test function at minimum power in
either heating or domestic hot water production.
Wait for the boiler to stabilise before carrying out the
combustion analyses. Check the CO2 value according
to the table above.
Important: do not remove silencer 17
N.B. When the combustion chamber is open, the
CO2 value drops by 0.3%.
If the values taken dier from the table, adjust the
gas valve following the procedure described below.
To adjust the CO2 value, remove cap
2, adjust the
CO2 content to ± 0.2 by turning setting screw 51 (4
mm allen key)
- unscrew to lower the CO
2
value
- tighten to increase the CO
2
value
Set the content by turning the screw about a 1/4 of a
turn then wait after each change for approximately 1
minute for the CO2 value to stabilise, then repeat.
Once the settings and analyses are complete, exit
test mode by pressing Reset and reposition the blan-
king cover and its seal correctly.
CO
2
maximum -
minimum
24
30
38
CO
2
(%)
G20
9,0 ± 0,2
9,0 ± 0,2
9,4 ± 0,2
G31
10,7 ± 0,2
10,0 ± 0,2
10,6 ± 0,2
7
50
2
Only a 4 mm
allen key must be
used. Do not use a
screwdriver
51
Only a 2.5 mm allen key
must be used. Do not
use a screwdriver
17