Inspection and maintenance
Inspection, maintenance and repair work should only be
undertaken by an approved heating installation compa-
ny. Inspections/Maintenance work not carried out can
result in damage to property and personal injury.
The electrical installation must only be made by a quali-
fied electrician in accordance with BS 7671 and the
Electricity at Work Regulations.
e
Danger!
Danger of death from electric shock!
The supply terminals in the terminal box of the
device are under voltage even if the mains
switch is off. Before working on the appliance,
turn off the power supply and secure it against
being switched on again!
d
Danger!
Danger of explosion caused by gas leaks!
When installing, maintaining and repairing the
unit, always check the gas-carrying compo-
nents, including the burner seals, for gas leaks.
We recommend the use of an electronic gas
sensor instrument.
H
Danger!
Danger of burning and scalding!
There is danger of being injured or scalded by
the boiler and by all components carrying
water. Only carry out work on these compo-
nents once they have cooled down.
Troubleshooting
• Disconnect the unit from the mains before starting
work. Close the gas valve and the maintenance valves.
• Drain the appliance if you want to replace water-car-
rying components within.
e
Danger!
Danger of death from electric shock!
The supply terminals in the terminal box of the
device are under voltage even if the mains
switch is off. Before working on the appliance,
turn off the power supply and secure it against
being switched on again!
• Make sure that no water falls on live components (e.g.
electronic box etc.).
• Use only new gaskets and O-rings.
• Perform a functional test after you have finished this
work.
3.2 Regulations
To ensure the safe installation of your appliance, the
laws, regulations, technical rules and standards pertain-
ing to the installation must be considered and adhered
to.
Attention shall be paid to the regulations, guidelines and
standards in force. In particular, reference shall be
made to the following regulations, guidelines, standards
and rules:
The electrical connections to the boiler MUST be in ac-
cordance with the BS 7671, The Electricity at Work Act,
and tested accordingly.
The Clean Air Act 1993 and the 3rd Edition of the 1956
Clean Air Act.
The Building Regulations, England and Wales, The Build-
ing Standards, Scotland, and any requirements deter-
mined by the local authorities within.
Water supply (water fittings) regulations 1999.
Detailed recommendations are also contained in the fol-
lowing documents:
BS 5854
Code of practice for flues and flue
structures in buildings.
BS EN 12828
Design of water-based heating systems.
BS 6644
Specification for the installation of gas-
fired hot water boilers with rated inputs
between 70 kW (net) and 1.8 MW (net)
(2nd and 3rd family gases).
BS 6880
Code of practice for low temperature
heating systems with outputs greater
than 45 kW.
Part 1 Fundamental and design consid-
erations.
Part 2 Selection of equipment.
Part 3 Installation, commissioning and
maintenance.
BS 6981
Installation of low pressure gas pipe-
work of up to 28 mm in domestic
premises.
BS 7074
Application, selection and installation of
expansion vessels and ancillary equip-
ment for sealed water systems.
Part 1 Code of practice for domestic
heating and hot water.
Part 2 Code of practice for low and me-
dium temperature hot water systems.
BS 6700
Specification for the design, installa-
tion, testing and maintenance of servic-
es supplying water for domestic use
within buildings and their curtilages.
Institute of Gas Engineers Publications
IGE/UP/1
Soundness testing and purging of in-
dustrial and commercial gas installa-
tions.
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Installation and maintenance instructions ecoCRAFT 0020055744_08
Safety instructions and regulations 3
