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Plumbing
144
Connection to the water supply
Water from the wash cabinet must not be consumed.
– The washer-disinfector must be connected to the water supply in
strict accordance with current local and national water authority
regulations.
– The water used must at least comply with European regulations for
drinking water quality. If the water supply has a high iron content
there is a danger of corrosion occurring on items being cleaned in
the washer-disinfector, as well as the appliance itself. If the chloride
content of the water exceeds 100 mg/l the risk of corrosion to items
being cleaned in the washer-disinfector will be further increased.
– In certain regions (e.g. mountainous areas) the water composition
may cause precipitates to form, requiring the use of softened water
in the steam condenser.
– UK, Australia and New Zealand only: To comply with water regula-
tion requirements, this machine must be connected to the potable
water supply via the non-return check valve supplied with the ma-
chine.
– The washer-disinfector is supplied as standard for connection to
cold water (blue coded hose) and hot water up to max. 65 °C (UK:
max. 60 °C) (red coded hose). Connect the inlet hoses to the stop-
cock valves for cold and hot water.
– If there is no hot water supply available, the inlet hose coded red
must also be connected to the cold water supply.
– The intake hose without water protection device for the steam con-
denser is connected to the cold water stopcock.
– The minimum flow pressure for the cold water connection is
100 kPa pressure, for the hot water connection 40 kPa pressure
and for the DI water connection 30 kPa pressure.
– The recommended flow pressure is ≥ 200 kPa for the cold and
hot water connections and ≥ 200 kPa for the DI water connection in
order to avoid excessively long water intake times.
– The maximum permissible static water pressure is 1,000 kPa.
– If water pressure is not within the specified range, please contact
the W&H Customer Service Department for advice.
– More information on AD water connection can be found at the end
of this section.
– A stopcock valve with a ¾" threaded union must be provided on
site. It should be easily accessible so that the water supply can be
turned off when the machine is not in use.
– The inlet hose is approx. 1.7 m long terminating in a ¾" female
thread. On no account may the inlet filter be removed.
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