Plumbing; Connecting The Water Inlet - Miele PFD 401 Marine Operating Instructions Manual

Commercial dishwasher
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Connecting the water inlet

 Health risk posed by process
chemicals
Water in the dishwasher must not be
used as drinking water.
Do not drink water from the dishwasher.
Do not re-use removable sets of hoses.
Use the sets of hoses supplied with the
dishwasher.
- The dishwasher must be connected to the
water supply in strict accordance with
current local and national water authority
regulations.
- The water used must comply with the
Water Supply (Water Quality) Regulations.
If the water supply has a high iron
content, there is a risk of corrosion
occurring on load items in the dishwasher,
as well as the dishwasher itself. If the
chloride content of the water exceeds
100 mg/l, the risk of corrosion on load
items will be increased considerably.
- In certain regions (e.g. mountainous
regions), the water composition may
cause precipitates to form, requiring the
use of softened water for the dishwasher.
- The water pressure (flow pressure) must
amount to at least 200 kPa pressure
(100 kPa = 1 bar). At a water pressure
(flow pressure) below 200 kPa, the water
inlet time extends automatically. The
maximum permissible static pressure
amounts to 1000 kPa (overpressure). If the
water pressure does not lie in the 200–
1000 kPa range, contact the Miele
Customer Service Department for advice.
- The dishwasher is supplied as standard
for connection to cold water (blue coded
hose) and hot water up to max. 60 °C (red
coded hose). Connect the inlet hoses to
the stopcocks for cold and hot water.
- If no hot water supply is available, the
inlet hose with the red marking for the hot
water connection must also be connected
to the cold water supply.
- A stopcock with a 3/4 inch screw thread
must be provided on site for the
connection. The valve should be easily
accessible, since the water inlet should be
shut off whenever the machine is not in
use.
- The inlet hose is a DN 10 pressure hose
measuring approx. 1.7 m in length,
terminating in a 3/4 inch screw thread. A
1.5 m long flexible metal extension hose
(tested to 140 bar) is available as an
optional accessory if required. On no
account may the inlet filter in the screw
thread be removed.
 Damage caused by shortening the
hose.
Do not shorten or otherwise damage the
inlet hoses supplied with the machine.
Do not shorten the inlet hoses.
Please also refer to the installation plan
provided.

Plumbing

99

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