Beretta IDRA N DS 1500, Руководство по установке

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INST
ALLA
TION MANUAL
16
Installation in older systems and systems requiring modernisation
Place of installation
IDRA DS
solar storage cylinders can be installed in any room where there is no specific requirement for an electrical
protection rating higher than IP X0D.
b
The room where the appliance is installed must, however, be dry to prevent the formation of rust.
b
Respect the minimum specified installation distances to ensure correct installation and access for maintenance.
When installing
IDRA DS
solar 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 legislation and stan-
dards.
- Make sure that the 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
below 200 mV/cm (25°C)
Chlorine ions below 50 ppm
Sulphuric acid ions below 50 ppm
Total iron below 0.3 ppm
Alkalinity M below 35°F
Total hardness minore di 35°F
Sulphur ions none
Ammonia ions none
Silicon ions below 30 ppm