11 Inspection and maintenance
22
Installation and maintenance instructions ecoFIT pure 0020230535_05
10.6.4 Replacing the main PCB
C
C
D
B
A
A
1.
Open the electronics box. (
→
Page 13)
2.
Pull all of the plugs out from the PCB.
3.
Undo the clips on the PCB.
4.
Remove the PCB.
5.
Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
6.
Plug in the PCB plugs.
7.
Close the electronics box.
10.6.5 Replacing the PCB for the user interface
B
C
C
D
A
A
1.
Open the electronics box. (
→
Page 13)
2.
Pull the plug out of the PCB.
3.
Undo the clips on the PCB.
4.
Remove the PCB.
5.
Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
6.
Plug in the PCB plug.
7.
Close the electronics box.
10.7
Checking the product for leak-tightness
▶
Check that the product is leak-tight. (
→
Page 19)
11 Inspection and maintenance
11.1
Using original seals
If you replace components, use only the enclosed original
seals; additional sealing materials are not required.
11.2
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 (
→
Appendix)
11.3
Checking the CO
₂
content
1.
Start up the product with check programme
(P.01)
.
Overview of the check programmes (
→
Page 16)
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.
Checking the CO
₂
content
Great Britain
front casing on / front casing off
Natural gas
G20
9.2
±
1 %
◁
The value is OK.
▽
The value is not OK; you cannot start up the
product.
▶
Set the CO
₂
content. (
→
Page 23)
