Inspection and maintenance 10
0020258016_01 ecoTEC pure Installation and maintenance instructions
27
9.7.10 Replacing the power supply cable
Note
The cable must be replaced by the manufacturer,
its customer service or suitably qualified persons
in order to avoid danger.
▶
If the power supply cable is damaged, replace it in ac-
cordance with the recommendations for the power supply
connection (
→
Page 15).
–
Section of the mains power cable: 3 G 0,75mm
²
9.8
Completing repair work
1.
Establish the power supply.
2.
Switch the product back on if this has not yet been
done. (
→
Page 20)
3.
Install the front casing.
4.
Open all service valves and the gas isolator cock.
10 Inspection and maintenance
10.1
Observing inspection and maintenance
intervals
Danger!
Risk of poisoning due to escaping flue
gases in overpressurised, multi-occu-
pancy air/flue gas installations.
▶
Only perform maintenance and repair
work after you have shut down all of the
heat generators connected to the air/flue
gas installation.
▶
Use suitable means to seal the air/flue gas
connection for the air/flue gas installation
during maintenance and repair work.
▶
Adhere to the minimum inspection and maintenance in-
tervals. The inspection may require maintenance to be
carried out earlier, depending on the results.
Inspection and maintenance work
–
Overview
(
→
Page 42)
10.2
Checking and adjusting the gas ratio
setting
Only a qualified competent person is authorised to imple-
ment the CO2 setting on the gas valve assembly.
Each destroyed seal must be restored.
The CO2 adjusting screw must be sealed.
Never modify the factory setting of the gas pressure regu-
lator of the gas valve.
10.3
Checking the CO
₂
content
1.
Start up the product with the check programme
(P.01)
and set the value.
–
Setting value for the programme P.01: 100
2.
Wait until the value that is read is stable.
–
Waiting period for reading a stable value: 5 min
1
3.
Unscrew the cover from the flue gas analysis point
(1)
.
4.
Measure the CO
₂
content at the flue gas analysis point.
5.
Compare the measured value with the corresponding
value in the table.
Checking the CO
₂
content
Germany
Fitted front casing
Natural gas
Liquid
gas
G20
G25
G31
9.4
±
1 %
9.0
±
1 %
10.4
±
0.5 %
◁
The value is OK.
▽
The value is not OK; you cannot start up the
product.
▶
Set the CO
₂
content. (
→
Page 28)
