Inspection and maintenance 11
0020239015_05 ecoTEC plus Installation and maintenance instructions
23
1
3.
Unscrew the cover from the flue gas analysis point
(1)
.
4.
Measure the CO
₂
content at the flue gas analysis point
(1)
.
5.
Compare the measured value with the corresponding
value in the table.
Checking the CO
₂
content
Great Britain
front casing off
front casing on
Liquid gas
Liquid gas
G31
G31
10.1
±
1.0 %
10.3
±
1.0 %
◁
The value is OK.
▽
The value is not OK; you cannot start up the
product.
▶
Set the CO
₂
content. (
→
Page 23)
11.4
Setting the CO
₂
content
Conditions
: The CO
₂
content must be adjusted
1
A
B
▶
Remove the sticker.
▶
Turn the screw
(1)
to set the CO
₂
content (value with
front casing removed).
◁
To increase the CO
₂
content: Turn anti-clockwise
◁
To decrease the CO
₂
content: Turn clockwise
▶
Only carry out the adjustment in increments of 1/8 turn
and wait approximately 1 minute after each adjustment
until the value has stabilised.
▶
Compare the measured value with the corresponding
value in the table.
Setting the CO
₂
value
Great Britain
front casing off
front casing on
Liquid gas
Liquid gas
G31
G31
CO
₂
at full load
10.1
±
1 %
10.3
±
1 %
Set for Wobbe
index W
₀
21.34 kW
⋅
h/m
³
21.34 kW
⋅
h/m
³
O
₂
at full load
5.1
±
0.8 vol. %
5.1
±
0.8 vol. %
CO at full load
≤
250 ppm
≤
250 ppm
CO/CO
₂
≤
0.0031
≤
0.0031
▽
If the setting is not in the specified adjustment range,
you must not start up the product.
▶
Inform Customer Service.
▶
Check whether the air-quality requirements with regard
to carbon monoxide are fulfilled.
▶
Fit the front panel.
11.5
Removing the gas-air mixture unit
Note
The gas-air mixture unit consists of three main
components:
–
Ventilator
–
Gas valve
–
Burner cover
1.
Switch off the product via the main switch.
2.
Close the gas isolator cock.
3.
Remove the front casing. (
→
Page 9)
A
B
1
4.
Remove the air intake pipe
(1)
.
