Rational iCombi Pro Original Installation Instructions page 63

When used according to instructions, iCombi Pro / iCombi Classic device re-
move the limescale themselves. Upstream water softening is not necessary.
CombiMaster Plus Without care
Water softening is recommended for water treatment in the event of very
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strong calcification (without chloride contamination).
Set a weakly acidic decarbonization via a hydrogen ion exchanger (H
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Sodium ion exchangers (as common in dishwashers) are not recommended.
Phosphate dosing is not recommended because of its negative effect on the
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water system.
Notes on connecting the water filter
The diameter of the water hose must be at least 1/2 inch, to the water filter at
least 3/4 inch.
When using a combination of water filters, observe the order of the filters in the
flow direction:
(A)-(B)-(C)
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Or
(A)-(B)-(D)
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80.06.083_iCombi Pro-iCombi Classic_IM_V01_en-US
8 | Water connection
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