OFFICE LINE
16
INSTALLATION
Water connection
Pressure and temperature
Relationship between boiler pressure and temperature
Standard pressure and temperature
0.7
110
115
120
125
0.8
0.9
1
1.1
1.2
o
C
BAR
Fig. 01
Connecting the machine to the domestic water supply must be performed by a qualified person.
Purge at least 20 liters of water from the domestic water supply before connecting the machine to it to flush
out any debris that may be in the plumbing system that would otherwise accumulate inside the boilers.
The domestic plumbing system should be fitted with a brass 3/8” male pipe fitting and an in-line
shut-off valve. Connect the 180cm water inlet hose included with the machine to the domestic water
supply and tighten the line fittings with a wrench.
Only use safe drinking water with a hardness rating between 5ºfH and 8ºfH (French hardness
degrees) or 20 to 32 ppm (parts per million as 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 necessary, connect the machine to a water softener to reduce water hardness using the flexible
55cm hose included in the accessory box.
Connect one end of the corrugated drain tube to the drain cup in the machine, connect the other
end to the plumbing drainage system in the installation area.
Boiler pressure is directly related to water temperature (fig. 01).
Machines fitted with a pressure gauge will display the boiler pressure, while machines is fitted with
a digital display it will indicate water temperature.
Important:
Only use the hoses supplied with the machine. Never reuse damaged hoses.
Ensure that the drainage tube is not twisted and that it is below the level of the drain cup.
Hydraulic connection types
This machine is offered with three options for hydraulic connection:
Machine intended for water mains connection.
Machine with internal water tank.
Machine with internal water tank and water mains connection.
Check the machine ratings plate to confirm which arrangement the specific machine is
equipped as.
