Performing The Gas Family Check - Vaillant ecoTEC plus SERIES Installation And Maintenance Instructions Manual

12 Inspection and maintenance
Settings
CO after 5 minutes full
2
Vol.–%
load mode with
boiler front casing fitted
CO after 5 minutes full
2
Vol.–%
load mode with boiler
front casing removed
Set for Wobbe index Ws kWh/m
CO value with full load ppm
CO/CO
2
12.1 Factory gas setting
Danger!
a
Risk to life due to poisoning!
CO is an extremely toxic gas. Risk to life
due to excessive CO concentrations.
> If you are not able to adjust the boiler
correctly and the flue gas values remain
higher than allowed in ¬ table 12.1, call
the Vaillant Service Solutions (0870
6060 777).
> Do not start up the boiler!

12.1.5 Performing the gas family check

Danger!
a
Risk to life due to poisoning!
CO is an extremely toxic gas. Risk to life
due to excessive CO concentrations. Fault
codes F.92 or F.93 may occur as result of
the gas family check.
> Correct the failure unconditionally before
starting up the boiler for continuous
operation.
Menu ¬ Installer level ¬ Test programs ¬Gas family
check
The gas family check checks the boiler setting with regard
to combustion quality.
> Perform the gas family check:
– as part of regular boiler maintenance
– after replacing components or working on the gas
route.
60
Unit Natural gas (H) Propane
7.8 - 10.2 9.7 - 10.7
7.6 - 10.0 9.5 - 10.5
3
15
< 250
< 0.0031 < 0.0026
i
No CO/CO
ing the gas family check.
Result Meaning
F.92 Coding The coding
resistance resistance on
fault the PCB does
not match the
entered gas
family
22.5
"successful" Combustion
quality is good.
< 250
Appliance con-
figuration
matches the
specified gas
family.
"Warning" Combustion
quality insuffi-
cient. CO
and CO/CO
ratio are incor-
rect.
F.93 Gas Combustion
group fault quality outside
the permitted
range
12.2 Results and measures after gas family check
Installation and maintenance instructions ecoTEC plus 0020116700_01
or CO measurement is possible dur-
2 2
Response
> Check the coding resistance,
repeat the gas family check
and enter the correct gas fam-
ily.
None
> Start test program P.01 and
adjust the CO value with the
2
value adjusting screw in the venturi
2
¬ section 12.1.4.
2
> If the correct CO
be set:
Check the gas restrictor for
correctness (yellow: H-gas,
grey: liquid gas) and damage.
> Repeat gas family check.
> Damaged or incorrect gas
restrictor (yellow: H-gas, grey:
liquid gas), wrong gas group,
internal pressure measuring
point in venturi blocked (do not
use lubricants on O-ring in ven-
turi.), recirculation, faulty seal.
> Resetting the boiler.
> Set correct CO
value using
2
test program P.01 (adjusting
screw in venturi)
¬ section 12.1.4.
> Repeat the gas family check.
value cannot
2