Requirements For The Fresh Water Connection - Meiko M-iClean U Series Translation Of The Original Operating Instructions

Operating instructions Glass-, utensil- and dishwasher
M-iClean U
Assembly
7.1.4
9763258

Requirements for the fresh water connection

Fresh water connections and their components must be carried out in accord-
ance with local regulations, e.g. EN 1717/DIN 1988-100. The fresh water must
be of the same quality as drinking water in microbiological terms. This also
applies to processed water.
The basic model of the dishwashing machine features an air gap (type AA or AB as
per EN 1717 or EN 61770). In the case of SVGW (Switzerland) and other countries,
a type EA safety device is also required in front of the connecting hose, depending
on the machine version. Installation components and materials must be suitable and
permitted in accordance with the locally valid regulations. A solenoid valve is inte-
grated into the dishwashing machine's fresh water line. This, together with the leak-
age detector in the floor tray in the frame, ensures that the fresh water inlet within
the machine is shut off in the event of a leak.
Pressure range of the fresh water supply flow pressure in front of the solenoid
valve:
• Machines with no GiO MODULE:
0.6–5 bar (60–500 kPa)
• Machines with GiO MODULE or ActiveClean water softener:
1–5 bar (100–500 kPa)
Measures to ensure correct water pressure:
• If the minimum flow pressure is too low, increase the pressure using a pressure
booster pump.
• If the maximum pressure is exceeded, limit the pressure using a pressure regu-
lator.
Other measures:
• Ensure that no rogue iron particles can enter the appliance via the mains fresh
water connection. The same also applies for contamination by other metal parti-
cles (e.g. copper shavings). Corresponding instructions are contained in the
installation drawing.
• A dirt trap must be fitted in the fresh water supply to protect the solenoid valve.
• After the dishwashing machine has been unused for an extended period of
time, drain the connection line and rinse it before putting the machine back into
operation.
• When replacing an old machine with a new one, make sure that the existing
feed hose is exchanged for the new feed hose supplied with the machine.
Table: raw water requirements for the operation of a reverse osmosis module
Designation
Conductivity
Water hardness
Feed water temperature
Free from particles
Iron
Manganese
Chlorine (free chlorine)
Chlorine (free chlorine)
Potassium permanganate
Silicic acid
26 / 72
Design and construction subject to change without prior notice!
Value
70–1000 µS/cm
0–28 °dH
Min. 1 °C to max. 35 °C (cold water connection)
> 10 µm
< 0.1 mg/l
< 0.04 mg/l
< 0.1 mg/l (standard membrane)
≥ 0.1 to ≤ 2.0 mg/l (chlorine-resistant membrane)
< 10 mg/l
< 10 mg/l