Zanussi ZT 415 - Manual (Page 7)

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The Water Softener
Water contains varying amounts of lime and mineral
salts depending on the area in which you live: these
are deposited on the dishes leaving white marks.
The higher the content of these salts, the harder your
water will be. The «hardness» level is measured on 2
equivalent scales: Clarke degrees or French degrees.
Contact your local Water Authority to find the exact
water hardness level for your area.
The dishwasher is equipped with a softener which uses
special dishwasher salt to provide lime-free (softened)
water. The softener can treat water hardness up to 90
French degrees via 5 adjustment levels.
Find on the table below the level corresponding to the
hardness of your water and the required adjustments:
* The water softener is factory set at level 2 as this suits most users.
** If you use phosphate free detergents containing enzymes, use
salt starting from 6 Clarke degrees (7 French degrees).
You may also change the factory setting by means of
the wash programme selector buttons. Each button
corresponds to a different level:
Level 1 = RINSE AND HOLD Programme Button
Level 2 = INTENSIVE 70°c Programme Button
Level 3 = NORMAL 65°c Programme Button
Level 4 = ECONOMY 55°c Programme Button
Level 5 = QUICK 55°c Programme Button
To select a different level, proceed as follows:
- Press the NORMAL 65°c and QUICK 55°c
programme buttons simultaneously for about 5
seconds until the short «instruction accepted»
signal is heard. The pilot light corresponding to the
current level flashes very rapidly.
- Press the programme button corresponding to the
required level.
- 5 seconds after having last pressed any of the
programme buttons, the dishwasher memorises the
level selected and returns to the programme setting
mode.
Important
Salt MUST be used regularly from level 2 upward.
If your water is «level 1» it is already soft and there-
fore there is no need to use salt.
Filling with Salt
Only use salt designed specifically for use in dish-
washers. Other types of salt contain high percentages
of other substances which may reduce the efficiency
of the softener.
Unscrew the cap of the salt container.
Fill the container with 1 litre of water (this operation is
necessary only the first time).
Place approximately 1kg of dishwasher salt inside
using the funnel provided (see figure).
Replace the cap making sure that there is no trace of
salt on the screw thread or on the gasket.
Screw the cap tightly.
When this has been done, all that is required is to
periodically add salt to the container. You are reminded
of this by the Salt refill light «SALT» on the control panel
which will illuminate when the salt has finished.
The salt container always has some water inside
which will normally overflow when refilling with salt.
Caution
Only fill with salt just before starting one of the com-
plete washing programmes (not Rinse and Hold
programme). This will prevent any grains of salt or
salty water, which may have been spilled, remaining
on the bottom of the machine for any period of time.
This could cause corrosion.
Water hardness
Level Use of
salt
°dH
Clarke
degrees
°TH
French
degrees
0-10
11-27
28-35
36-49
50-63
0-14
15-39
40-50
51-70
71-90
1
*2
3
4
5
**NO
YES
YES
YES
YES
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