V-ZUG 771 Operations Instructions download pdf (Page 59)

… Care and maintenance

Descaling

Whenever steam is produced, depending on the hardness of the local water

supply (i. e. the limescale content of the water), limescale is deposited in the

boiler.

The appliance automatically recognises when descaling is necessary.

– flashes in the digital display.

The time interval between descaling depends on the hardness of the water

and frequency of use. If steaming 4× 30 minutes per week, the appliance

must be descaled – depending on water hardness – roughly as follows:

We recommend that the appliance be descaled whenever the warning

appears in the display.

Failure to descale the appliance will likely impair the functioning of or cause

damage to the appliance.

Water hardness Descale after about

䡲 Soft

18 months

䡲 Medium

9 months

䡲 Hard

6 months

Descaling takes about 45 minutes.

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V-ZUG 771 Operations Instructions Page 59