Water And Drain Connections - GEM KMG Series Installation And Maintenance Manual

8.1 • WATER PRESSURE
The pressure of the water in the network
must be between 200 and 500 kPa,
as already stated under the heading
"Technical Data". If the supply pressure is
higher than this, a pressure reduction valve
must be installed between the oven and
the main.
8.2 • WATER CONNECTIONS TO THE
BOILER (IF APPLICABLE) AND
VAPORIZER
The water supplied to the vaporizer must
be either cold and softened or hot (max
50 °C), as described below. The water
connection is R 3/4". The hose for
connection to the water supply must be
provided by the installer. Do not re-use
pre-existing or already used connection
tubes. A shutoff valve must be installed on
the line between the oven and the supply.
8 • WATER AND DRAIN CONNECTIONS
8.3 • WATER SPECIFICATIONS
The characteristics of the water must come
within the limits given below, in order to
prevent both corrosion, which is extremely
damaging for the appliance, due to
supplying water that is too softened or too
aggressive, and scaling in the oven and in
the water system in the case of supplying
water that is too hard.
Hardness: between 6° and 9° TH
PH:
Chlorides: less than 30 ppm
These values are important for ensuring that
the water used by the appliance is suitably
treated!
8.4 • WATER CONNECTIONS FOR
CONDENSING STEAM
The water used for condensing steam need
not be softened, but must necessarily be
cold. The water connection is R 3/4". The
hose for connection to the water supply
must be provided by the installer. Do
not re-use pre-existing or already used
connection tubes. A shutoff valve must be
installed on the line between the oven and
the supply.
12
90027360rev00
greater than 7.5