Water Supply System Requirements - Smeg GW2145 User Manual

Note to prevent the risk of clogging or damage: if the water pipe is new or has been unused for a long time, before
connecting the water supply make sure that the water is clear and free of impurities.

14.1.3 WATER SUPPLY SYSTEM REQUIREMENTS

Preliminary checks
1. The water supply pressure must be within the required limits: min. 2 bar - max 5 bar.
2. The hot water temperature must not exceed 50°C - Higher temperatures might reduce the efficiency of the
integral water softener by damaging the resins it contains.
3. The water supply taps must be accessible.
WATER SUPPLY CHARACTERISTICS
Cw: MAINS WATER - essential:
The appliance must be connected to "potable" mains water having hardness 42°f max. and with total dissolved iron
2+ 3+
content, Fe e Fe , not exceeding 0.5 ppm.
For models equipped with a steam condenser, the use of purified water, preferably with hardness below 20°f, is
recommended.
N.B.:
If the water supply contains more than 0.5 ppm of iron (Fe
42°f (French degrees), the water must be pretreated by installing an iron removal and/or softening system upstream
of the appliance.
WARNING - MAINS WATER HARDNESS
User's responsibility: the hardness of the mains water must be checked prior to installation.
The Smeg engineer will not be able to set the parameters of the appliance's integral water
softener unless the hardness of the intake water is known.
Regular checks must be made (e.g. every 6 months/year) on the intake water to ensure that the
initial values are maintained, to allow the appliance parameters to be corrected if the
characteristics change.
Dw: DEMINERALISED WATER - optional connection but strongly recommended
If available, the use of demineralised water (conductivity < 30 µS) is recommended to ensure that washing is optimal
from the chemical point of view, through better removal of the chemical residues in the water supply; however, dirt
residues will still be effectively removed even if ordinary mains water is used.
WARNING - NO DEMI WATER
If demineralised water is not available, do not connect the relative hose to hot and/or cold water
intakes. Leave the "demineralised water" hose disconnected.
The appliance's SETTINGS must be corrected accordingly by the Authorised Service Centre.
User Manual
2+
/Fe
GW2145 - GW1160 - GW4060 - GW4190
3+
) and/or the hardness of the water supply exceeds
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