19
Instructions for the installer
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For the correct operation of the AIREX
range of boilers it
is
necessary
to foreseen a recirculation pump, to prevent a low
temperature return, which could compromise the life of the
boiler.
UNICAL, to help its customers, has therefore developed a
hydraulic kit for recirculation that enhances the function of the
circulating water in the boiler.
This kit is supplied as an option and is available by indicating
the model of your boiler.
fig. 18
