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(11) | EP 1 855 070 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Free cooling chiller |
(57) Free cooling chiller (1) comprising a primary circuit (2) of a refrigerating plant,
provided with an evaporator (6), a condenser group (5) and a compressor (4) and able
to perform heat exchange by means of the evaporator (6) with a secondary circuit (3)
for transferring refrigerating power to user appliances. The secondary circuit (3)
is provided with a return line (10) intercepted by a free cooling group (13) and a
circuit for bypassing the free cooling group. The chiller (1) is provided with a support
structure (14) defining a containing compartment (16) acted on by an air flow produced
by a ventilation unit (15). The condenser group (5) and the free cooling group (13),
which are intercepted by corresponding gate valves (17,18), communicate via separate
sections with the compartment (16).
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