Vaillant ecoTEC plus SERIES, Instructions For Installation And Servicing

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Installation and Servicing ecoTEC plus
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7.1.3 Final flush of the heating system (hot)
• Operate the appliance until the heating system is up
to temperature.
• Check the heating system for leaks.
• Connect a hose to the drain valve located at the
lowest position of the heating system.
• Shut off the appliance, open the drain valve and all
bleed 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.
• Fill the heating system again with water.
• If fitted to a sealed system.
Release water from the system until the system
design pressure is attained. (The actual reading
on the digital pressure gauge should ideally be 0.5
bar plus an additional pressure corresponding to
the highest point of the system above the base
of the boiler 10 m head equals an additional 1 bar
reading on the pressure gauge. The minimum
pressure should not be less than 1 bar in any
installation.) If the system is to be treated
with an inhibitor it should be applied 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 Fernox,
Alpha–Fry technologies. Tel: 0870 8700362.
• Refit the boiler casing (see section 5.10)
7.2 Handing over to the user
Note!
If fitted to a sealed system.
• Set the maximum radiator temperature control to
the desired setting.
• Set the maximum hot water temperature control to
the desired setting (If optional Vaillant accessories
are fitted).
• Instruct the user in the safe and efficient operation
of the boiler.
• Show the user how to operate any external controls.
• Explain to the user the importance of having the
boiler regularly serviced by a competent servicing
company.
To ensure regular servicing, it is strongly
recommended that arrangements are made for
a maintenance agreement. Please contact Vaillant
Service Solutions (0870 6060 777) for further
details.
• If applicable record central heating operating
pressure in the Benchmark gas boiler commissioning
checklist along with the heat input (kW) and
temperature difference between flow and return.
• Leave the user instructions and the installation
instructions with the user.
7.3 Vaillant warranty
Vaillant provide a full parts and labour warranty for
this appliance.
The appliance must be installed by a competent
person in accordance with the Gas Safety (Installation
and Use) Regulations 1998, and the manufacturer’s
instructions. In the UK ‘CORGI’ registered installers
undertake the work in compliance with safe and
satisfactory standards.
All unvented domestic hot water cylinders must be
installed by a competent person to the prevailing
building regulations at the time of installation (G3).
Terms and conditions apply to the warranty, details of
which can be found on the warranty registration card
included with this appliance.
Failure to install and commission this appliance in
compliance with the manufacturer’s instructions
may invalidate the warranty (this does not affect the
customer’s statutory rights).
7 Functional checks commissioning (part II)