Ariston NIMBUS PLUS S NET Manual page 52

CE Labelling
appliance complies with norms:
- 2014/30/EU - relating to Electromagnetic Compatibility
- 2014/35/EU - related to electrical safety (LVD)
- RoHS2 2011/65/EU related to the restriction of the use of
certain dangerous substances in electrical and electronic
equipment (EN 50581)
- Regulation (EU) No. 813/2013 on ecodesign (no. 2014/C
207/02 - transitional methods of measurement and calcula-
tion)
This product conforms
to Directive
WEEE 2012/19/EU.
The symbol of the crossed waste paper basket on the ap-
pliance indicates that at the end of its working life the pro-
duct should be disposed of separately from normal domestic
household rubbish, it must be disposed of at a waste dispo-
sal centre with dedicated facilities for electric and electronic
appliances or returned to the retailer when a new replace-
ment product is purchased.
The user is responsible for the disposal of the product at the
end of its life at an appropriate waste disposal centre.
The waste disposal centre (which using special treatment
and recycling processes effectively dismantles and disposes
of the appliance) helps to protect the environment by recy-
cling the material from which the product is made.
For further information about waste disposal systems visit
your local waste disposal centre or the retailer from which
the product was purchased.
52 / GB
Cleaning the heating system
At the first installation, it is necessary to pre-clean the installa-
tion.
In order to ensure the proper functioning of the appliance,
after each cleaning operation or water substitution, verify that
the appearance of the liquid system is clear, without visible
impurities and that water hardness is under 20°F.
Characteristics of the water supplied to the appliance
Ensure that the system is supplied with water having a maxi-
mum hardness of 20 ° F.
For areas where the water is particularly hard, provide a water
softener does not change in any way the warranty, if the com-
ponent is installed in a proper manner and is subject to regular
checks and maintenance.
In particular, the hardness of the water supplied to the ap-
pliance, must never be less than 12 ° F.
In case of aggressive water filling (the pH should be kept
between 6.6 and 8.5), ferruginous or hard, use treated water
in order to prevent scaling, corrosion and damages to the ap-
pliance. Please note that even a small amount of impurities in
the water may decrease the performance of the installation.
The used filling water must absolutely be treated in case of
installation of large capacity (high volumes of water) or in case
of frequent replenishments of water in order to maintain a
constant level of liquid in the installation. Where it is necessary
to proceed with the cleaning of the installation, fill the entire
system with treated water.
Verify that the maximum pressure, at the level of the water
supply, does not exceed 5 bar. Otherwise, provide the instal-
lation with a pressure reducer valve.