Inspection and maintenance 12
0020300875_01 Energy
7
Installation and maintenance instructions
37
12 Inspection and maintenance
12.1
Using original seals
If you replace components, use only the enclosed original
seals; additional sealing materials are not required.
12.2
Observing inspection and maintenance
intervals
▶
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
12.3
Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may void the conformity of
the product and it will therefore no longer comply with the
applicable standards.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the back page of these instructions.
▶
If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.
12.4
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
Check programmes
–
Overview
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
(1)
.
5.
Compare the measured value with the corresponding
value in the table.
Great Britain and Ireland
Removed front casing /
installed front casing
Natural gas
H
9.2
±
1%
◁
The value is OK.
▽
The value is not OK; you cannot start up the
product.
▶
Set the CO
₂
content.
12.5
Removing the gas-air mixture unit
Note
The gas-air mixture unit consists of three main
components:
–
Fan
–
Gas valve assembly
–
Burner hood
1.
Switch off the product via the main switch.
2.
Close the gas stopcock.
3.
Remove the front casing.
C
A
B
1
D
2
4.
Remove the screw
(1)
.
5.
Push the clip upwards.
6.
Remove the flue pipe
(2)
.
3
4
5
A
B
7.
Remove the air intake pipe
(3)
.
8.
Remove the plugs from the gas valve assembly
(4)
and
from the fan
(5)
.