Maintenance
Depending on water quality and frequency of use the
instaneous water heater must be descaled more or less often
(hard water and frequent use = frequent descaling).
By installing a water filter these service intervals can be in-
creased considerably.
Advise for descaling
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Fill the 2 ltr. jug half full of water and stir-in quick descaling
powder with a pplastic spoon (50 - 100 gr. per ltr.) until
the powder is completely dissolved.
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Insert filter (10).
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Set quantity selector (3) to the smallest quantity.
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Remove the round lid from the top covering plate and fill
the solution into the water container. Hold back powder
particles which have not dissolved. Boil thoroughly until 1/3
of the solution has evaporated.
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Now switch off the machine and allow solution to react for
about 10 minutes.
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Switch on the machine again and boil until the residual
solution has evaporated.
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Afterwards adjust to 1/1 programme and fill water container
3 times with water (without descaling detergent) and boil
thoroughly.
193 W / 197 W:
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Check if the water discharge hose of the machine has
been properly connected to the drain pipe on customer’s
site.
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Operate switch (13) and fill 1,5 ltr. of water out of the
boiler via fittings (17) into the 2 ltr. jug. Stir in quick
descaling powder (300 - 400 gr.) with a plastic spoon until
the powder is completely dissolved.
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Switch off hot water unit (14).
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Remove the cap for emptying the boiler (no. 15). Open
fully the draining tap behind the cap by turning it a quarter
to the left using the socket spanner provided. The boiler
will now be emptied completely into the customer’s drain.
Close the draining tap again by turning it as far as possible
to the right.
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Remove the cap of the top covering plate above the water
boiler and fill in the prepared solution with the funnel.
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Switch on the hot water unit (14). After letting the machine
heat up fpr approx. 5 minutes operate switch (13) and let
approx. 0,5 ltr. of water out of the boiler via fittings (17).
Allow the solution to react for approx. 10 minutes.
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Empty the boiler as described.
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Fill into the water boiler 2 ltr. fresh water with the funnel.
Switch on the hot water unit again. After the boiler has
been filled with water, operate switch (13) and let approx.
0,5 ltr. of water flow out via fittings (17). Switch off the
machine again and empty the boiler as described. Repeat
rinsing process 3 times, using fresh water each time.
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Fill into the water boiler 2 ltr. fresh water with the funnel.
Now switch on the hot water unit. As soon as the indicator
lamp within switch (13) ceases to burn the unit is ready
for operation.
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Insert the cap of the discharge opening and put the lid
back on the boiler again.
We recommend to use Swirl-Quick-descaling-powder in 1 kg tin
as descaling detergent. Order no. 1012538.
20
193 W / 197 W
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Switch on the hot water unit by pressing On/Off switch (14).
The indicator lamp is illuminated and the boiler for preparing
hot water starts to heatup.
After approx. 14 minutes the boiler has reached working
temperature. The indicator lamp (13) ceases to burn and the
hot water unit is ready for operation.
Hot water extraction:
Hot water can be despensed via fittings (17) is switch (13) is
pressed. Water can be dispensed as long as this switch is
operated.
Hot water outlet:
If requested we can supply a screw-on extension for the outlet (17)
so that tapping height can be reduced from 185 to 130 mm.
Order no. 11628.
Switching off the machine
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The machine should be switched off overnight and during
longer stillstands.
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By operating switch (6) the coffee machine unit and the
lower warm holder can both be switched off at once.
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The top warm holders (8) are switched off with switch (5).
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The hot water unit of W-type machines is switched off by
pressing switch (14).
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The facilities provided on site i. e. electric connections and
water supply should be switched off if the machine is not
to be operated for a longer period of time.
Servicing indicator lamp
A defect within the heating system of the water heater (i. e.
excessive build-up limescale) is indicated by the servicing
indicator lamp. If this lamp is illuminated the heater is
automatically switched off for safety reasons.
Depending on the degree of limescala build-up the heater
automatically strats to work again after a break.
The total filtering time increases repectively.
Descaling the machine is now urgently necessary and must be
carried out as soon as possible as otherwise the built-in
machine safety fuse strats to react. If this is the case a
servicing engineer must be requested in oreder to restore the
working condition of the machine.
Cleaning and maintenance
Attention:
The machine should not be put into water for cleaning purposes
nor should water be poured or sprayed over the machine.
Always pull the main plug out of the socket before starting to
clean the machine.
Larger coffee machines used in the field of commercial catering
are generally rather expensive and therefore shuld be
maintained properly. Regularly mainained machines not only
look better but the coffee made with these machines over a
longer period of time is also of better quality.
Melitta
can offer a cleaning programme especially designed for
these purposes.
Outer cleaning:
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Wipe plastic and stainless steel surfaces regularly with a
damp cloth. We recommend Swirl-EST-care products in
spray can for special treatment steel surfaces.
Order no. 201025.