Connecting To The Domestic Water Supply - Expobar QUARTZ ONE TOUCH Technical Manual

INSTALLATION AND START-UP

Connecting to the domestic water supply

Connecting the machine to the domestic water supply must performed by a qualified person.
Run about 20 liters of water from the domestic water supply before connecting the machine to make sure
there are no contaminants in the plumbing system.
Connect the flexible inlet hose (included in the accessory box) to the domestic water supply and tighten it
with a wrench. The hose only connects to a ½" male connection.
Only use safe drinking water with a hardness rating between 5 - 8ºTH (French hardness degress) / 2.8 -
4.5ºdH (German hardness degrees ) / 3.5 - 5.6ºe (English hardness degrees) / 50 - 80 ppm (parts per million)
of calcium. If the hardness value is below this limit, corrosion of hydraulic components is likely. If the value is
higher, lime-scaling inside the boiler will occur. In both cases, the proper function of the machine and quality
and taste of the coffee will be negatively affected.
If you choose to connect the machine to an external water connection, it is strongly recommend to connect
the drip tray to an external drain. See page 11 for more information.
Important:
Be careful to not damage any panels and electronic components while disassembling the machine.
The power cord must be unplugged when disassembling the machine.
Note:
i
If you want to disconnect the machine from the mains water supply and start using only the internal
water tank again, make sure to replace the inlet valve cover plug. The machine will leak if this plug is
not reinstalled.
To prepare the machine for connection to an external water supply follow the connection procedure
explained below.
Remove the four screws form the cup shelf.
10
01
Remove the screw at the top of the rear panel,
then remove it.
QUARTZ
ONE TOUCH
02