ecoTEC plus 937 installation and maintenance manual
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• 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 combi boiler
quickly and fully.
• Close the drain valve.
• Re-fill the heating system with water as described in
Section 5.4.3.
• Drain water out of the system until a system pressure
of 1.0 bar is reached. (The ideal measured value on the
pressure gauge is 0.5 bar plus an extra amount
corresponding to the highest point of the system
above the combi boiler. A height of 10 m corresponds
to a pressure increase on the pressure gauge of
around 1 bar. The pressure must not be less than 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
Fernox, Alpha–Fry technologies, Tel.: 0870 8700362.
• Re-fit the enclosure of the combi boiler (see Section
5.10).
• Fit the base cover to the combi boiler and shift load
storage tank by pushing the front edge of the cover
into the retaining tag on the front lower edge of the
unit framework.
• Carefully push the base cover upwards until the spring
clips on the side of the unit engage. It may be
necessary to modify the base cover by removing the
easily removable breakaway sections.
6.2
Handing over the device to the owner
h
Note!
When you have finished the installation, attach
the sticker supplied (835 593) to the appliance
in the user’s language.
• Set the controller for the maximum radiator
temperature to the required temperature.
• Set the controller for the maximum hot water
temperature to the required temperature.
• Instruct the operator in the safe and efficient
operation of the combi boiler, paying particular
attention to the functions of:
– the ON/OFF switch of the combi boiler,
– the controller for the maximum radiator
temperature,
– the controller for the maximum hot water
temperature (only on combination boilers),
– 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 input (in kW) and the temperature
difference between the flow and return in the
Benchmark 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.
6.3 Vaillant
warranty
6.3.1 Two
years
warranty
Vaillant is obliged to resolve manufacturing faults which
arise during the first 24 months after installation.
A prerequisite for the effectivity of the guarantee in the
second year is that an annual service is carried out one
year after commissioning by a CORGI registered installer.
The costs for this annual service is not included in the
guarantee. The appliance must be installed by a suitably
competent person in accordance with the Gas Safety
(Installation and Use) Regulations 1998, and the
manufacturer‘s instructions. Failure to install and
commission this appliance in accordance with the
manufacturer‘s instructions may invalidate the warranty
(this does not affect statutory rights).
6.3.2 Registering
with
us
Registration with us is simple. Just fill in the card for
guarantee registration and return it to Vaillant within
30 days from the date of installation. Your details are
automatically entered in the Vaillant guarantee scheme.
h
Note!
A receipt is not issued.
6.3.3 First
aid
In the event of a fault on your Vaillant boiler firstly
consult your installer since his services must be
obtained as a condition of the guarantee.
If you cannot contact your installer contact Vaillant
Service Solutions on phone number 0870 6060 777.
6 Functional Checks (commisioning, Part II)
