Regulations For The Prevention Of Accidents; Lightning Protection; Frost Protection - Vaillant auroTHERM VFK 125 Installation Manual

3 Safety information
— BS 6700: Services supplying water for domestic use
within buildings and their curtilages.
— BS 5449 Forced circulation hot water central heating
systems for domestic premises.
Note: only up to 45 kW.
— BS 6880 Low temperature hot water heating systems
of output greater than 45 kW.
Part 1 Fundamental and design considerations.
Part 2 Selection of equipment.
Part 3 Installation, commissioning and maintenance.
- BS 6114: Expansion vessels using an internal dia-
phragm for unvented hot water supply systems
- BS 4814 Specification for: Expansion vessels using an
internal diaphragm, for sealed hot water heating sys-
tems.
Unvented hot water systems must comply with building
regulation G section 3.
3.3

Regulations for the prevention of accidents

When carrying out works such as solar installation work
it is necessary to do so in a safe and workman like man-
ner, taking due care of any aspects of the works that
could result in injuries to person in or about the building
as well as workers, passers by and the general public at
large. To that end these works must conform, but not be
limited to, the current regulations in force such as the
following
— Health and Safety at Work act 1974
— Work at Height Regulations 2005.
— Electricity at Work Regulations 1989
— All necessary Building Regulations.
Work should be preceded by a risk assessment covering
all aspects of health and safety risks, or training re-
quirements that can reasonably be foreseen to be asso-
ciated with the work. All scaffolding in the UK, other
than prefabricated (zip-up) scaffold towers, must be de-
signed and constructed by a vetted contractor, and
have suitable kick boards, hand rails and where appro-
priate netting. Areas around the scaffolding should be
zoned off and marked with suitable warning signs to a
suitable distance to protect persons from falling objects.
Workers should have available and use personal protec-
tive equipment as necessary. This would include equip-
ment such as fall protection systems, safety gloves,
goggles, dust masks as well as any specialised equip-
ment that may be in use such as lifting and handling
equipment.
The completed works shall comply with all necessary BS
EN Standards and Codes of practice as well as Building
control or planning requirements and be confirmed
where necessary by notification to building control or
the appropriate competence based notification body.
4
3.4

Lightning protection

Caution!
a
Damage from lightning!
If the installation height is more than 20 m or
if the collectors are projected above the roof
ridge, electro-conductive components must be
connected to a lightning protection device!
3.5

Frost protection

Caution!
a
Damage due to frost!
Under no circumstances should water on its
own be in the collector if there is a danger of
frost!
After pressurisation and flushing, the collectors
may contain water residues.
Immediately fill the solar system with solar
fluid. Check the fluid concentration with a frost
protection tester. Water remaining in the solar
circuit may dilute the fluid.
Installation manual auroTHERM 0020057143_04