Filling The Condensate Trap; Gas Ratio Setting - Vaillant ecoTEC plus Installation And Maintenance Instructions Manual

7.14

Filling the condensate trap

1. Remove the lower section from the condensate trap (1).
2. Fill the lower section with water up to 10 mm below the
upper edge.
3. Attach the lower section to the condensate trap.
7.15

Gas ratio setting

7.15.1 Checking the factory-set gas ratio setting
Caution.
Risk of material damage caused by mak-
ing unauthorised settings.
▶
Never modify the factory setting of the gas
pressure regulator of the gas valve.
▶
Before you start up the product, compare the gas group
information on the identification plate with the gas group
available at the installation site.
Conditions: The product design is not compatible with the local gas group
Only Vaillant Service Solutions may perform a gas conver-
sion.
If a gas conversion to liquid gas has been carried out, the
smallest possible partial load is higher than is shown on the
display. The correct values can be found in the Technical
data in the appendix.
▶
Call Vaillant Service Solutions (0330 1003 143).
▶
Do not start up the product.
Conditions: The product design is compatible with the local gas group
▶
Proceed as described below.
0020209593_01 ecoTEC plus Installation and maintenance instructions
7.15.2 Checking the leak-tightness of the flue gas
system and for flue gas recirculation
1. Check the integrity of the flue gas system.
2. If the flue gas system is longer than 2 m, we urgently
recommend that you test the system for flue gas recir-
culation as described below.
3. Use the air analysis point to check for flue gas recircula-
tion.
4. Use the flue gas measuring instrument.
5. If you discover CO or CO2 in the fresh air, search for a
leak in the flue gas system or for the flue gas recircula-
tion.
6. Eliminate the damage.
7. Repeat the above-mentioned test to determine if the
fresh air contains CO or CO2.
8. If you cannot eliminate the damage, you must not start
up the boiler.
7.15.3 Checking the gas flow rate
1
The boiler is fitted with a multifunctional automatic gas valve
which ensures that the precise air/gas ratio is provided un-
der all operating conditions. The gas flow rate has been set
during production and does not require adjustment. With the
front casing fitted check the gas flow rate of the boiler as fol-
lows:
▶
Start up the product with the check programme P.01.
▶
In addition, ensure that maximum heat can be dissipated
into the heating system by turning up the room thermo-
stat.
▶
Wait at least 5 minutes until the boiler has reached its
operating temperature.
▶
Ensure that all other gas appliances in the property are
turned off.
▶
Measure the gas flow rate at the gas meter.
▶
Compare the measured values with the corresponding
values in the table.
Nominal
value for
the net heat
supply
in kW in
accordance
with
BS EN 483
12
15
18
24
30
37
25
32
35
38
Start-up 7
H gas in m³/h P gas in kg/h
+5%
−10% Nom.
Nom.
1,31 1,38 1,18 0.96
1,64 1,72 1,48 1,20
1,97 2,07 1,77 1,44
2,61 2,74 2.35 1,92
3,27 3,43 2,94 2,40
4,03 4,23 3,63 2,96
2,72 2,86 2.45 2,00
3,41 3,58 3,07 2,52
3,78 3,97 3,40 2,78
4,15 4,36 3,73 3,05
+5%
−10%
1,01 0,86
1,26 1.08
1,51 1,30
2,02 1,73
2,52 2,16
3,11 2,66
2,10 1,80
2,65 2,27
2,92 2,50
3,20 2,75
25