0020244998_04 ecoTEC plus Installation and maintenance instructions
29
9.6
Performing a gas family check
Danger!
Risk of poisoning!
Inadequate combustion quality (CO), indic-
ated by
F.92/93
, leads to an increased risk of
poisoning.
▶
Make sure that the fault is completely
eliminated before starting up the product
for continuous operation.
Menu
→
Installer level
→
Test programs
→
Gas family
check
The gas family check checks the product setting with regard
to combustion quality.
Note
If additional condensing boilers are connected to
the same flue pipework in the heating installation,
ensure that none of these condensing boilers are
in operation or start operating throughout the en-
tire test programme, so that the test result is not
distorted.
▶
Perform the gas family check as part of routine product
maintenance work, after replacing components, carrying
out work on the gas route and following gas conversion.
Result
Meaning
Measure
F.92
See the table of
fault codes in the
appendix
See the table of fault
codes in the appendix
"Successful"
Combustion
quality is good.
Unit configur-
ation matches
the specified gas
group.
None
"Warning"
Combustion
quality inad-
equate.
CO
₂
content is
incorrect.
Start check programme
P.01 and adjust the
CO
₂
content with the
adjusting screw in the
Venturi.
If the correct CO
₂
con-
tent cannot be set:
Check that the gas re-
strictor is correct (yellow:
G20 natural gas, blue:
G25 natural gas, grey:
Liquid gas) and undam-
aged.
Repeat the gas family
check.
F.93
See the table of
fault codes in the
appendix
See the table of fault
codes in the appendix
Note
It is not possible to perform CO
₂
measure-
ments during the gas family check.
9.7
Using check programmes
Menu
→
Installer level
→
Test programs
→
Check pro-
grams
By activating various check programmes, you can trigger
special functions on the product.
Check programmes
–
Overview (
9.8
Checking and treating the heating
water/filling and supplementary water
Caution.
Risk of material damage due to poor-qual-
ity heating water
▶
Ensure that the heating water is of suffi-
cient quality.
▶
Before filling or topping up the installation, check the
quality of the heating water.
Checking the quality of the heating water
▶
Remove a little water from the heating circuit.
▶
Check the appearance of the heating water.
▶
If you ascertain that it contains sedimentary materials,
you must desludge the installation.
▶
Use a magnetic rod to check whether it contains mag-
netite (iron oxide).
▶
If you ascertain that it contains magnetite, clean the in-
stallation and apply suitable corrosion-inhibition meas-
ures, or fit a magnetic filter.
▶
Check the pH value of the removed water at 25 °C.
▶
If the value is below 8.2 or above 10.0, clean the installa-
tion and treat the heating water.
▶
Ensure that oxygen cannot get into the heating water.
Checking the filling and supplementary water
▶
Before filling the installation, measure the hardness of the
filling and supplementary water.
Treating the filling and supplementary water
▶
Observe all applicable national regulations and technical
rules when treating the filling and supplementary water.
Provided the national regulations and technical rules do not
stipulate more stringent requirements, the following applies:
You must treat the heating water in the following cases
–
If the entire filling and supplementary water quantity dur-
ing the operating life of the system exceeds three times
the nominal volume of the heating installation, or
–
If the guideline values listed in the following table are not
met, or
–
If the pH value of the heating water is less than 8.2 or
more than 10.0.
Total
heating
output
Water hardness at specific system volume
1)
≤
20 l/kW
> 20 l/kW
≤
50 l/kW
> 50 l/kW
kW
ppm
CaCO
₃
mol/
m
³
ppm
CaCO
₃
mol/
m
³
ppm
CaCO
₃
mol/
m
³
< 50
< 300
< 3
200
2
2
0.02
> 50
to
≤
200
200
2
150
1.5
2
0.02
> 200
to
≤
600
150
1.5
2
0.02
2
0.02
