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2.3.3 Install the filter
The premium quality filter provided with the PROBOIL system provides protection for the boiler and also give
great tasting drinks. It is important to set up the filter correctly, according to the water hardness to get the best
results. Always establish the water hardness value at the installation site using a test strip or by entering the post code
into the water suppliers website. The system is only design to treat municipally treated (mains) water supplies.
1) Adjust the filter bypass valve in filter head (C3) to the appropriate
level, according to your water hardness.
Take the hardness reading from and add 2° Clark (30ppm) to your
result to allow for possible fluctuations in the supply hardness. Using
the table below convert this new increased value to establish the
appropriate bypass setting value.
2) Adjust the bypass setting and turn the head (C3) upside down. You
will see a numbered central dial. Push, rotate then release the dial
on the correct numbered setting 0 (hard) to 6 (not hard / softer).
A small plastic 'key' tool may be provided with the filter head to
make this easier.
Hardness reading
+ 2° Clark (30ppm)
°Clark (GB)
5
6
8
9
10
11
13
14
15
16
18
19
20
21
24
26
29
33
36
41
48
*
Refers to the guideline maximum filter life for hard water scale reduction for vending usage.
**
Refers to the guideline maximum filter life for chlorine reduction according to NSF/ANSI 42 at 12.5 English Clark.
Performance can vary depending on the water quality and usage patterns, filtered (non-boiled) and filtered (boiled) water use count towards the total filter
usage. Data based on a flow rate of 2 L/min through the filter unit.
⚠
It is important to select the correct bypass level in order to set the correct balance between the filter life and
protecting the boiler unit from scale.
PROBOIL.4E user & installation guide v1d
Bypass setting
PPM
70
90
107
125
143
161
179
196
214
232
250
268
286
304
339
375
411
464
518
589
679
Capacity in litres*
(scale reduction)
6
3920
6
3220
6
2830
6
2430
6
2130
6
1890
6
1700
6
1550
6
1280
6
1180
6
1090
6
1020
6
960
6
900
6
810
6
730
6
670
5
500
5
440
5
370
5
340
Capacity in litres**
(chlorine reduction)
1700
35
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