EN
page 49
7.2.3 Water supply connection - Characteristics
Fresh water supply features:
Connect the machine's water supply with an interrupt valve capable of quickly and completely shutting o
ff
water intake.
*
It is compulsory to install a water-softener, in case of water with average hardness above 8°f
. Washed objects will
be cleaner and the machine will last much longer.
The machine can be equipped with a water softener, on request. If the machine is equipped with a water-softener, a
regeneration of the resins shall be done on regular basis (see par.
3.6 Regeneration device
).
N.B.:
Any damage caused by limestone (calcareous water higher-up than 8°f and without water-softener) will not be covered
by warranty.
A periodical check of the supplied water hardness is highly recommended.
**Machines shall be made with extra power in case of cold water infeed.
***The water supply temperature shall never exceed 55°C.
7.2.4 Water supply characteristics
The machine water supply must be potable, in compliance with Directive 98/83/EC.
The inlet water must also meet the parameters given in the table 2.
1
Out of range values might lead to corrosion and jeopardize the life of the machine.
2
Should the water hardness is higher
it is compulsory
to install a water softener and check periodically its operation.
3
Out of range values might lead scaling and sediments with a consequent lower performance, functionality, and expected
life of the machine.
4
Desired value: Out of range values might lead stainless steel blackening/tarnishing.
It is recommended a water test once a year.
7.2.5 Steam evacuation
In accordance with regulations of environmental hygiene, for the proper functioning of the machine and a healthy environment
for the operator who working in there, it should be at least 10 air volume changes per hour in the room where the machine
is installed.
For small wash rooms we recommend at least 15 air volume changes per hour.
Table 1
Water characteristics table
Min
Max
Static Pressure
200
kPa
400
kPa
Dynamic Pressure*
150
kPa
350
kPa
Water hardness**
2°f
8°f
Cold water-supply temperature***
5°C
50°C
Hot water-supply temperature****
50°C
60°C
Capacity
10l/min
Water parameters table
Min
Max
Chlorine
1
2mg/l
pH
6,5
1
8,5
3
Water hardness
8°f
2-3
Iron
3
0,2 mg/l
Manganese
4
0,05 mg/l
Table 2
Содержание US PPlus500 LPWR
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