Beretta 20052790, Инструкция по установке и эксплуатации

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15
INSTALLER
14 PLACE OF INSTALLATION
B IDRA N DS storage cylinders can be installed in any
room where there is no specific requirement for an electri-
cal protection rating higher than IP X0D.
≥ 0,4 m
≥ 0,6 m
≥ 0,3 m
≥ 0,4 m
b
Specified minimum distances must be respected,
and the space in which the storage cylinder is to be
installed must be easily accessible in order to per-
mit easy installation and assembly and subsequent
inspection, maintenance and repair. In particular, ac-
cess must permit the storage cylinder to be removed
without disassembly at the end of its useful life, and
another unit to be installed in its place. Users are the-
refore responsible for any costs incurred to demolish
masonry or other structures preventing or impeding
free access to the space where the storage cylinder
is to be installed.
15 INSTALLATION IN OLDER
SYSTEMS AND SYSTEMS
REQUIRING MODERNISATION
When installing B IDRA N DS storage cylinders in old
systems or systems requiring modernisation, always per-
form the following checks.
- Make sure that the system is fitted with safety and
control devices in accordance with applicable legi-
slation and standards
- Make sure that the central heating circuit has been
flushed out to remove all sludge and lime scale, and
has been vented and seal tested
- Make sure that a suitable water treatment system is
installed if the quality of the supply/recirculation water
so demands (refer to the reference values listed in the
table alongside).
REFERENCE VALUES
pH 6-8
Electrical conductivity less than 200 μS/cm (25°C)
Chlorine ions less than 50 ppm
Sulphuric acid ions less than 50 ppm
Total iron less than 0.3 ppm
Alkalinity M less than 50 ppm
Total hardness less than 35°F
Sulphur ions none
Ammonia ions none
Silicon ions less than 30 ppm