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TECHNICIANS manual
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10.4 Water lter maintenance
10.4.1 Water hardness detection
As part of the lter maintenance, it is advisable to test
the water beforehand.
To identify the carbonate hardness of the water use
the kit specied as follows:
1. Put 10 ml of water to be tested in the test tube (1);
2. add a drop of reagent (2) and mix;
3. proceed in the same way by counting the number
of drops until the solution (3) changes color from
Blue to Red
1 DROP = 1°dKH
Example: 9 Drops ----> Carbonate hardness 9°dKH
3
1
2
10.4.2 By-pass conguration
Depending on the hardness of the water, adjust the
by-pass of the water lter as shown in the table below.
Example:
Water hardness 9°dKH
By-pass 2 adjustment
Water
hardness
(°dKH)
Ad-
justm.
Bypass
Filter capacity (liters)
V M L XL
4 3 6,250 9,500 13,000 17,000
5 3 5,000 7,600 10,400 13,600
6 3 4,165 6,330 8,665 11,330
7 3 3,570 5,425 7,425 9,710
8 2 3,125 4,750 6,500 8,500
9 2 2,775 4,220 5,775 7,555
10 2 2,500 3,800 5,200 6,800
12 1 1,865 2,835 3,885 5,080
14 1 1,600 2,430 3,330 4,355
16 0 1,185 1,800 2,465 3,220
20 0 945 1,440 1,970 2,575
24 0 790 1,200 1,640 2,145
≥ 25 0 ≤ 755 ≤ 1,150 ≤ 1,575 ≤ 2,060
The values indicated in the table may vary, depending on the lter
cartridge type used.
To adjust the by-pass, push the button (4) and turn.
4
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