(57) A heating cooling unit, intended for meeting the thermal requirements of a building,
comprising a box shaped supporting structure which is intended for being installed
on the roof of the building and wherein there are contained: an air treatment station
(10) for treating an air flow intended for conditioning one or more main rooms of
the building, such station comprising heat exchange means (11,12) suitable for regulating
the air flow temperature; a refrigeration circuit (20a,20b,20c), operating according
to a vapor compression cycle, which is susceptible of providing a heat load generated
by a condensation stage and a cool load generated by an evaporation stage; a first
and a second hydraulic circuit (30,40) which are suitable for thermally connecting,
through a thermal carrier fluid circulating therein, the refrigeration circuit (20)
to the heat exchange means of the air treatment station (10) for regulating the air
flow temperature by means of the heat load and/or the cool load, at least one of the
two hydraulic circuits (30,40) being provided with a tank (31,41) for allowing the
storage of the thermal carrier fluid, as well as with a delivery header (32,42) and
with a return header (33,43) for allowing the thermal carrier fluid to circulate outside
the heating cooling unit (1) and to feed conditioning devices located into secondary
rooms of the building; - a hot sanitary water production circuit (50) which is thermally
connected to one of the two hydraulic circuits for at least partly absorbing the heat
load of the refrigeration circuit and is intended for being hydraulically connected
to a water distribution network of the building; and a heat integration circuit (60),
provided with a boiler (63), which can be thermally connected in parallel to one of
the two hydraulic circuits and to the hot sanitary water production circuit (50) for
integrating the heat load of the refrigeration circuit (20) in respectively heating
the thermal carrier fluid and the sanitary water.
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