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16 Water connection
The water-related safety should be as per DIN EN 61770. The machine can be connected to an inlet water
supply without an intermediate connection to other safety equipment.
The machine and any other relevant additional devices must be connected in accordance with
standards and regulations.
Warning
INFO
At the commissioning of the machine the authorised service technician measures the water
hardness and saves it in the machine's electronic control unit.
16.1 Requirements for the on-site inlet water connection
Water quality
Water inlet temperature
Water hardness
Minimum flow pressure
Maximum inlet pressure
Flow rate
16.2 Requirements for the on-site water stopcock
easily accessible
not behind the machine
1
3/4" connector
16.3 Connecting the inlet hose
The inlet hose may not be shortened or damaged.
Old existing hoses may not be re-used.
Do not bend the inlet hose while laying it.
Caution
The inlet hose and water inlet filter are located in the machine.
INFO
The water inlet filter prevents particles from the water supply entering the machine thus preventing
extraneous rust on the cutlery and in the machine.
Right view
1
For Canada: 3/4" connector with garden hose thread, male
The fresh water must in microbiological aspects have the quality of drinking
water.
PG 8172: max. 60 °C
PG 8172 ECO: Cold water (max. 20 °C)
3 °dH (3.8 °e, 5.34 °TH, 0.54 mmol/l, 3 gr/gal) (recommendation, to prevent
scaling of the machine)
30 °dH (37.6 °e, 53.4 °TH, 5.35 mmol/l, 30 gr/gal) with machines with an
internal water softener
PG 8172 ECO:
3 °dH (3.8 °e, 5.34 °TH, 0.54 mmol/l, 3 gr/gal) (recommendation, to prevent
scaling of the machine)
20 °dH (25.1 °e, 35.6 °TH, 3.58 mmol/l, 20 gr/gal) with machines with an
internal water softener
Connection of osmosis water is not permitted due to the copper pipes in the
waste air heat exchanger
PG 8172: 100 kPa (1.0 bar)
PG 8172 ECO: 150 kPa (1.5 bar)
600 kPa (6.0 bar)
at least. 4 l/min
Connecting the inlet hose (TWw) to the machine.
Connect the water inlet filter to the on-site water stopcock.
Only with hot water connections in Great Britain:
Install the non-return valve between the water inlet filter and
the inlet hose. The non-return valve is located in a bag in the
machine.
Connect the inlet hose to the water inlet filter.
Open the water stopcock and test whether the connections are
tight.
Water connection
73
GB
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