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Pressure
Position of the set-
in MPa
ting screw
(mbar)
Right-hand stop
(turned all the way
35.0 (350)
down)
Mid-position (5 turns
25.0 (250) Factory setting
to the left)
5 further turns to the
left from the mid-posi-
17.0 (170)
tion
11.4 Setting value for the bypass valve (feed head)
11.2
Handing over the boiler to the operator
Danger!
a
Risk of poisoning and burns caused by
escaping hot flue gas!
Hot flue gas can escape and cause poison-
ing and burns if the boiler is operated with
an incompletely fitted or open air/flue gas
duct or if the boiler is operated with inter-
nal leaks with the front casing open.
> Operate the boiler
- for commissioning
- for testing purposes
- in continuous operation
only when the front casing is fitted and
closed and the air/flue gas duct is com-
pletely fitted.
> For test purposes only, such as gas flow
pressure testing, the boiler may be oper-
ated with the front casing removed for
short durations ONLY but must have a
completely installed air/flue gas duct.
> After completing the installation, stick the 835593
sticker in the user's language to the front of the boiler.
The sticker is delivered with the boiler.
You must brief the operator of the boiler on the handling
and function of the ecoTEC pro.
> Explain the importance of regular maintenance by a
competent heating specialist company to the operator.
It is strongly recommended that a maintenance contract
be taken out to ensure regular maintenance. Important
information is available from Vaillant Service Solutions
(0870 6060 777).
> Complete the Benchmark gas boiler commissioning
checklist which is found at the end of these instructions.
If this boiler is not installed and commissioned in accord-
ance with the manufacturer's instructions, this may void
the guarantee (Note: Your legal rights remain unaffected
by this.)
Installation and maintenance instructions ecoTEC plus 0020134833_01
Adapting the boiler to the heating installation
Notes/application
If the radiators do not get
properly hot in the default set-
ting.
Note: In this case, you must
set the pump to the maximum
stage.
If noises in the radiators or
radiator valves are produced
> Hand the boiler over to the operator.
> Explain the basic operation of the heating installation to
the operator.
> Provide the operator with all relevant instructions and
boiler documentation.
> Go through the operating instructions with the operator
> Answer any questions the operator may have.
> Make the operator aware of the need to keep the instruc-
tions near the boiler, but not in or on the boiler.
> Draw special attention to the safety information which
the operator must follow.
> Instruct the operator that no changes or adjustments
must be made to the flue gas guiding or combustion air
supply. These must both terminate outside of the build-
ing and be constructed only from approved components.
> Explain to the operator how he should monitor the water
level/filling pressure of the system.
> Explain to the operator which measures are required to
top up and purge the heating installation if required.
> Explain to the operator how to correctly set the tempera-
tures, the controllers and the thermostatic radiator
valves (economically).
> Complete and sign off the Benchmark commissioning
check list.
> Complete and sign off the guarantee documentation.
11
57
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