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10
Commissioning
If the supply pressure is out of tolerance contact your
Emergency Service Provider.
If the gas inlet working pressure at the reference test point
(1) is not within the permissible range and you cannot cor-
rect the failure, notify the gas supply company or the
Vaillant Service Solutions (0870 6060 777) and proceed as
follows:
> Take the boiler out of operation by
– terminating test program P.01 as described in ¬ sec-
tion 10.4.
– Allow the boiler to cool down by turning off water
taps and allow pump overrun to operate for a
minimum of two minutes.
> Close the gas isolation valve of the boiler.
> Remove the pressure gauge and retighten the sealing
screw (1) for the measuring nipple.
> Turn on gas at the gas isolation valve.
> Make sure that there is no leakage at the sealing screw.
> Turn off gas at the gas isolation valve.
> Put the front casing back on.
> Turn off electrical supply to the boiler.
> You must not start up the boiler.
If the gas inlet working pressure is within the permissible
range, proceed as follows:
> Take the boiler out of operation by
– terminating test program P.01 as described in ¬ sec-
tion 10.4.
– Allow the boiler to cool down by turning off water
taps and allow pump overrun to operate for a
minimum of two minutes.
> Close the gas isolation valve of the boiler.
> Remove the pressure gauge and retighten the sealing
screw (1) for the measuring nipple.
> Open the gas isolation valve of the boiler.
> Make sure that there is no leakage at the sealing screw.
> Put the front casing back on.
> Reset boiler controls for normal operation.
> Record the boiler gas inlet working pressure (kPa resp.
mbar) in the Benchmark gas boiler commissioning check-
list.
Natural gas (G20)
Minimum
Maximum
Boiler
pressure at
pressure at
reference
reference
test point in
test point in
kPa (mbar)
kPa (mbar)
937
1.5 (15)
2.3 (23)
10.3 Gas inlet working pressure at the reference test point
48
LPG (G31)
Minimum
Maximum
pressure at
pressure at
reference
reference
test point in
test point in
kPa (mbar)
kPa (mbar)
2.3 (23)
4.3 (43)
10.13
Carrying out a full function test
> After completing the installation and the gas ratio set-
ting, perform a complete function check of the boiler
before starting up the boiler and handing it over to the
operator.
> Start up the boiler in accordance with the relevant oper-
ating instructions.
If you have still not successfully completed the installation
assistant and subsequently confirmed this, it will be
restarted when you switch on the boiler. Before continuing,
complete the installation assistant (¬ section 10.2).
10.8 Checking for leaks
Caution!
b
Malfunction or shortened life expectancy!
The leak detection spray can damage the
heating device.
> Do not spray the leak detection spray on
the cover cap on the filter of the Ven-
turis
(3, ¬ fig. 3.2).
> Check the gas supply line, the flue gas installation, the
heating installation and the hot water pipes for leaks.
> Check the air/flue gas duct for correct installation.
> Make absolutely sure that the front casing is properly fit-
ted.
> Check the heating mode (¬ section 10.13.1)
> Check the operation of the hot water generation (¬ sec-
tion 10.13.2)
You can display the current operating condition of the
boiler in the "Live monitor" on the boiler display (¬ sec-
tion 13.2.1).
Menu ¬ Live monitor
Installation and maintenance instructions ecoTEC plus 0020134833_01
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