Smeg WD1050 Operating Instructions Manual page 13

It is advisable to allow the water to run in order to drain off any rusty deposits or
sludge if connections are made with new pipes.
In case of blood-stained instruments make sure that the machine is not supplied with
water at temperature higher than 40°C.
WARNING
Make sure that the inlet pressure of the mains water is within the
operating limits: min. 2 bar - max 5 bar.
The water shutoff valves must be accessible
Always shut off the water supply cocks when the machine is not being used
CAUTION
Chemical characteristics of mains water that are not compatible
with a good washing process.
If the water contains more than 0.5 ppm of iron Fe
hardness of the water is more than 42°F (French degrees), it must be
pre-treated by installing a deferrization and/or softening system
upstream.
WD1050 12/04/2010
2+ 3+
/Fe and/or the
Pag. 10