Vaillant ecoTEC plus 1006 VU GB 1006/5-5, Инструкция по установке и обслуживанию, Страница: 22 / 60

7 Start-up
22
Installation and maintenance instructions ecoTEC plus 0020134823_07
7.14 Checking and adjusting the gas setting
7.14.1 Checking the factory setting
Caution.
An incorrect gas group setting may cause
operating faults or a reduction in the ser-
vice life of the product.
If the product design does not match the local
gas group, malfunctions will occur or you will
have to replace product components prema-
turely.
▶
Before you start up the product, compare
the gas group information on the data
plate with the gas group available at the
installation site.
The product's combustion has been factory tested and is
preset for operation with the gas group indicated on the data
plate.
Condition : The product design is not compatible with the local gas group
If you want to operate the product with liquefied petroleum
gas, do not start up the product.
A gas conversion must only be carried out by Vaillant cus-
tomer service or the manufacturer of the product.
▶
Notify Vaillant customer service or the manufacturer of
the product that you want a gas conversion carried out.
Condition : The product design is compatible with the local gas group
▶
Proceed as described below.
7.14.2 Checking the leak-tightness of the flue gas
system and for flue gas recirculation
1. Check the flue gas installation is intact in accordance
with the latest gas safe technical bulletin and informa-
tion supplied in the installation instructions.
2. For extended flue gas installations check for flue gas
recirculation using the air analysis point.
1
3. Use the air analysis point (1) to check for flue gas recir-
culation.
4. Use a flue gas analyser.
5. If you discover CO or CO
2
in the supply air, search for
the leak in the flue gas installation or for signs of flue
gas recirculation.
6. Eliminate the damage properly.
7. Check again whether the supply air contains any CO or
CO
2
.
8. If you cannot eliminate the damage, do not start up the
product.
7.14.3 Checking the gas flow rate
The boiler is fitted with a multifunctional automatic gas valve
which ensures that the precise air/gas ratio is provided under
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 follows:
▶
Start up the product with the check programme P.01 .
▶
Ensure that maximum heat can be dissipated into the
heating system by turning up the room thermostat.
▶
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.
Qnw from the data
plate
H gas in m
³
/h
Nom. +5 %
−
10 %
76.2 8.10 8.51 7.29
95.2 10.10 10.61 9.09
114.3 12.10 12.71 10.89
Condition : Gas flow rate not in the permissible range
▶
Check all of the piping and ensure that the gas flow rates
are correct.
▶
Only put the product into operation once the gas flow
rates have been corrected.
Condition : Gas flow rate in the permissible range
▶
End the check programme P.01 .
▶
Allow the boiler to cool down by allowing pump overrun to
operate for a minimum of 2 minutes.
▶
Record the boiler maximum gas flow rate onto the
Benchmark gas boiler commissioning checklist.