Handing Over The Appliance To The Owner - Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

> Connect a hose to the drain valve which is located at
the lowest position in the heating system.
> Shut off the appliance, open the drain valve and all
vent valves on the radiators and allow the water to
flow out of the heating system and the boiler quickly
and fully.
> Close the drain valve.
> Re-fill the heating system with water (see Section
6.1.1).
> Drain water out of the system until a system pressure
of 100 kPa (1.0 bar) is reached. (The ideal measured
value on the pressure gauge is 50 kPa (0.5 bar) plus
an extra amount corresponding to the highest point
of the system above the boiler. A height of 10 m corre-
sponds to a pressure increase on the pressure gauge
of around 100 kPa (1 bar). The pressure must not be
less than 100 kPa (1 bar) on any installation.)
If the system is to be protected by an inhibitor, it
should be added at this stage in accordance with the
manufacturer's instructions.
Further information can be obtained from Sentinel,
Betz Dearborn Ltd., Tel.: 0151 420 9595, or from Fer-
nox, Alpha–Fry technologies, Tel.: 0870 8700362.
> Re-mount the enclosure of the boiler.
> Attach the bottom cover to the boiler by sliding the
front edge of the cover into the lip at the bottom
front edge of the appliance chassis.
> Carefully push the rear of the bottom cover upwards
until the spring retaining clips engage at the side of
the appliance. It may be necessary to adapt the bot-
tom cover by removing the easy break sections.
6.4

Handing over the appliance to the owner

> Set the controller for the maximum radiator tempera-
ture to the required temperature.
> Set the controller for the maximum hot water temper-
ature to the required temperature.
> Instruct the operator in the safe and efficient opera-
tion of the boiler, paying particular attention to the
functions of:
– the ON/OFF switch of the boiler,
– the controller for the maximum radiator tempera-
ture,
– the controller for the maximum hot water tempera-
ture,
– the pressure gauge.
> Make the operator acquainted with the operation of
any external controllers.
> Explain to the operator the importance of regular
maintenance by a competent heating engineer. It is
strongly recommended that a maintenance contract
be taken out to ensure regular maintenance. Further
information can be obtained from Vaillant Service
Solutions (0870 6060 777).
> Enter the operating pressure of the central heating
system, the heat feed (in kW) and the temperature
Installation and maintenance instructions ecoTEC exclusive 0020017768_07
difference between the flow and return in the Bench-
mark gas boiler commissioning checklist.
If the appliance is not installed and commissioned in
accordance with manufacturer's instructions this can
lead to invalidation of the guarantee (Note: Your legal
rights remain unaffected by this.).
> Leave the operating and installation instructions with
the operator of the appliance.
> Go through the operating manual with the operator
and answer any questions.
> Draw special attention to the safety instructions,
which the operator must follow.
> Instruct the operator about the methods used for
combustion air supply and flue conducting. In particu-
lar, point out that these measures must not be
altered.
> Inform the operator that the instruction manuals
should be kept near the appliance.
i
When you have finished the installation,
attach the sticker supplied (835593) to the
front case of the appliance in the user's lan-
guage.
a
Danger!
Risk of poisoning and scalding caused by
escaping hot flue gases!
Hot flue gas can escape and cause poisoning
and scalding, if the boiler is operated with an
incompletely mounted or open flue pipe or if
the boiler is operated with internal leaks with
the front cladding open.
> Operate the boiler
- for start-up
- for testing
- in continuous operation
only when the front cladding is closed and
the air/flue gas duct is fully fitted and
closed.
Start-up 6
33