8
ATTENTION (*) see general warnings 1.1:
The heating only models are NOT suitable
for the production of water for human con-
sumption according to Ministerial Decree
D.M. 174/2004.
ATTENTION!
ANY DAMAGE TO THE BOILER CAUSED BY
THE FORMATION OF SCALING OR BY COR-
ROSIVE WATER WILL NOT BE COVERED BY
THE WARRANTY.
VALUE MIN MAX
PH 6.5 8.5
Hardness [°fr] 9 15
NOTE!
Further details in the section
‘‘Technical Information’’ on the boiler
page of the www.unicalag.it website
1.7 - WATER TREATMENT
Feed water treatment prevents problems and
maintains the functionality and eciency of the
generator over time.
The ideal water pH in heating systems must be
within:
To minimise corrosion, it is crucial to use a cor-
rosion inhibitor; in order for it to work properly,
the metal surfaces must be clean.
(see system protection ACCESSORIES sect. in
domestic price list)
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