Stadler Form William Operating Instructions Manual

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• after malfunction, after the appliance has been dropped or damaged in
any other way.

• Only operate the humidier when it is completely assembled.

• Repairs of electrical appliances are only to be made by qualied ser vice
engineers. Improper repair work can cause considerable danger to the
user.

• Disconnect the appliance from the mains power before lling/emptying

the water lank, before cleaning/maintenance, assembling/ dismantling
of individual parts and before moving the appliance.

• Plac e the humidier on a dr y, level sur fac e. Do not place the de vice direct-
ly on the oor or nex t to heating.

• Do not pour water into the vapour outlet of the humidier.

• Do not put any additives in the water (e.g. fragrances, essential oils, wa-
ter fresheners, etc.)

• Do not submerse the main body in water or other liquids.

Attention

• The appliance works only properly with untreated Water. Do not use with

water from decalcifying devices or ion exchangers.

• Please DO NOT use any additive to the water (essential oils, water treat-
ment agent)! Even a very small quantity could destroy the material of
the water tank. The use of such additives causes immediate expiration

of warranty.

Before setup: lter cartridge and water hardness
The length of time the cartridge is effective for depends on the hardness
of the water. This can be tested using the testing strips provided (strips are
stuck to the reverse side of these instructions for use)

1. Dip the testing strips into the water for a second

2. After around one minute, the results can be seen on the testing

strips. Some of the green boxes change colour into pink. The water
hardness is shown by how many boxes turn pink.

Example: If three boxes are green, then the water hardness is at level «3»

Pink elds Water hard-

ness

0/1 soft from 4°dH 60 days Approx. 360 l

2 middle hard from 7°dH 30 days Approx. 180l

3 rather hard from 14°dH 20 days Approx . 120l

4 hard from 21°dH 10 days Approx. 60

Degree of
hardness

(°dH)

Cartridge suitable for

(at 6 liter / day)

Days Liter

With a water hardness upwards of 21 °dH, we can no longer recommend the
use of a ultrasonic air humidier. We recommend that you use an impeller
humidier to increase humidit y in your house (e.g. Oskar humidier made by

Stadler Form).

The unit only works properly with untreated water. Do not use where there

are water softeners and water ionisers in operation. However, the William
may be operated from a drinking water lter system (e.g. Brita). Should you