ONE
TANK
TAP
Water Supply Selector
14
Original instructions.
Important
: To prevent limescale build up in the
boiler and other components, a water-softening
system must be installed in-line ahead of the
machine. Read more on section for water filter
requirements.
Important
: Use the inlet hose included with the
machine to connect it to the water mains in accordance
with the national rules applicable in the country where
machine is installed. Never reuse damaged hoses
The default water supply mode parameter in the technical programming menu is set to use the machine in Tank mode.
Water supply mode must be adjusted once the machine is intented to be used plumbed:
- Dual mode (
Not In US)
: Automatic water reservoir refilling enabled if the machine is plumbed.
- Tank mode: Automatic water reservoir refilling disabled. Water reservoir supply only.
- Net mode
(US only)
: Plumbed mode only. Intended for machines with water supply selector.
Programming instructions available on Service Manual.
For specific US models:
This models have a manual selector located at the bottom of the machine that must be set manually if the machine is plumbed.
· Hydraulic supply selection
After the machine is connected of disconnected from the water mains, follow instructions of 'Hydraulic supply selection' section to
set up the machine accordingly.
Important
: Machines equipped with the water inlet selector tap are
intended to work on ‘TANK’ (pour over) position or ’TAP’ (plumbed)
position. The automatic water reservoir dual function is not available on
these models and it will work like TANK ONLY’.
INSTALLATION AND START UP
1.
Connecting the machine to the domestic water supply must be performed by a qualified person. Contact a service
technician to do this task you are not confident about performing the steps below.
2.
Attach the included water inlet hose to the back of the machine and torque both fittings with a wrench (3/4" BSPP elbow
end to machine, straight end to 3/8" BSPP mains).
3.
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.
4.
The domestic plumbing system should be fitted with a brass 3/8” BSPP 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 to 15 ft. lbs. / 20N-m.
· Mains water connection
Note
: For a suitable performance of the machine, maximum inlet water pressure must be 0.6 MPa (6 Bar) (87 psi). For
Norway, Sweden, Finland and Denmark, where the net pressure can reach 1.0MPa (10 Bar), install a pressure reducer in
case water pressure exceeds this range.
i
Pro Tip:
Significantly exceeding this operating range will result in excessive steam, high energy usage, unexpected
emergency machine shutdown due to safety valve activation and possibly premature machine failure. Setting the
temperature too low will resulting poor coffee extraction, slow group boiler heating, and low/no steam.
· Optimal working range
1B models
2B models
Steam Boiler
116ºC to 122ºC / 0.8 bar to 1.3 bar
241ºF to 252ºF / 116 psi to 189 psi
Group Boiler
N/A
88ºC to 96ºC
190ºF to 205ºF